This document provides information about teaching a classroom lesson on ocean waves. It includes objectives about wave energy sources, properties of different wave types, and how bathymetry impacts waves. Activities include a wave tank demonstration, video clips on tsunamis and wave simulators, and instructions for students to build cardboard surfboards to experiment with wave speeds. The key points are that wind energy powers most ocean waves while tsunamis are caused by geological events, and breaking waves occur due to shoaling over shallow depths near the shore.
The document discusses three topics related to oceans:
1) Ocean waves are movements of energy, not water molecules, with characteristics like height, length, and speed determined by factors like wind speed and fetch. Breaking waves occur when friction slows the trough.
2) Tides are caused by gravitational and centrifugal forces from the Moon and Sun, leading to higher spring tides during full and new moons and lower neap tides during quarter moons. Locations like the Bay of Fundy experience extreme tide ranges.
3) Ocean currents are driven by density differences, deep circulation, and global wind systems that form gyres and upwelling zones along western coastlines, transporting nutrients for marine
A wave is any disturbance that propagates energy through matter or space. Waves can be mechanical, requiring a medium, or electromagnetic, not requiring a medium. Waves have properties like wavelength, frequency, reflection, refraction, diffraction, and interference. Mechanical waves include sound and water waves, while electromagnetic waves include light and radio waves.
This lesson covers different types of waves and how they impact coastlines differently. It will define the coast and its three zones, and name the two types of waves - constructive and destructive. Constructive waves are low in height and energy and build up beaches by depositing sediment, while destructive waves are higher and more energetic, eroding beaches by pulling sediment offshore. The lesson will explain how the characteristics and effects of these wave types differ.
This document outlines the components of a web quest on killer waves and tsunamis, including objectives, introduction, task, process, resources, and evaluation. The introduction defines tsunamis as the most powerful ocean waves, able to travel at speeds up to 650-800 km/hr, and explains their Japanese name translates to "harbor wave." It describes how tsunamis can suck water away from land then crash back with devastating force, dragging people and structures out to sea and killing over 50,000 in the last century. The evaluation task is to create a chart of the 10 most destructive tsunamis of the past and current centuries.
The document discusses different types of waves, including water waves generated by wind. It explains how wind blows over water and generates ripples and waves, which can grow large during storms when the wind blows consistently in one direction. The document also describes how waves behave in different environments, including entering shallow water where they slow down and break on shorelines.
Waves are created by wind blowing over the surface of the sea, transferring energy that causes water particles to rotate and move the swell forward. When waves reach shallow water, they break. Swash is the wave movement up the beach during breaking, while backwash is the movement back down. Long-shore drift is the process where waves push sediment parallel to the shore, transporting materials down the coast through deposition and transportation.
Waves are caused by wind dragging across the surface of water, causing the water to oscillate rather than move as a solid block. Individual water particles move in circles while the wave energy travels forward. Key characteristics of waves include their height from trough to crest, wavelength between two crests, and period of time for one full wavelength to pass. Wave size depends on wind speed, duration, and the distance of open water over which the wind blows known as fetch. As waves approach shore, their speed decreases causing their height to increase and wavelength to decrease, sometimes causing waves to break.
The document discusses three topics related to oceans:
1) Ocean waves are movements of energy, not water molecules, with characteristics like height, length, and speed determined by factors like wind speed and fetch. Breaking waves occur when friction slows the trough.
2) Tides are caused by gravitational and centrifugal forces from the Moon and Sun, leading to higher spring tides during full and new moons and lower neap tides during quarter moons. Locations like the Bay of Fundy experience extreme tide ranges.
3) Ocean currents are driven by density differences, deep circulation, and global wind systems that form gyres and upwelling zones along western coastlines, transporting nutrients for marine
A wave is any disturbance that propagates energy through matter or space. Waves can be mechanical, requiring a medium, or electromagnetic, not requiring a medium. Waves have properties like wavelength, frequency, reflection, refraction, diffraction, and interference. Mechanical waves include sound and water waves, while electromagnetic waves include light and radio waves.
This lesson covers different types of waves and how they impact coastlines differently. It will define the coast and its three zones, and name the two types of waves - constructive and destructive. Constructive waves are low in height and energy and build up beaches by depositing sediment, while destructive waves are higher and more energetic, eroding beaches by pulling sediment offshore. The lesson will explain how the characteristics and effects of these wave types differ.
This document outlines the components of a web quest on killer waves and tsunamis, including objectives, introduction, task, process, resources, and evaluation. The introduction defines tsunamis as the most powerful ocean waves, able to travel at speeds up to 650-800 km/hr, and explains their Japanese name translates to "harbor wave." It describes how tsunamis can suck water away from land then crash back with devastating force, dragging people and structures out to sea and killing over 50,000 in the last century. The evaluation task is to create a chart of the 10 most destructive tsunamis of the past and current centuries.
The document discusses different types of waves, including water waves generated by wind. It explains how wind blows over water and generates ripples and waves, which can grow large during storms when the wind blows consistently in one direction. The document also describes how waves behave in different environments, including entering shallow water where they slow down and break on shorelines.
Waves are created by wind blowing over the surface of the sea, transferring energy that causes water particles to rotate and move the swell forward. When waves reach shallow water, they break. Swash is the wave movement up the beach during breaking, while backwash is the movement back down. Long-shore drift is the process where waves push sediment parallel to the shore, transporting materials down the coast through deposition and transportation.
Waves are caused by wind dragging across the surface of water, causing the water to oscillate rather than move as a solid block. Individual water particles move in circles while the wave energy travels forward. Key characteristics of waves include their height from trough to crest, wavelength between two crests, and period of time for one full wavelength to pass. Wave size depends on wind speed, duration, and the distance of open water over which the wind blows known as fetch. As waves approach shore, their speed decreases causing their height to increase and wavelength to decrease, sometimes causing waves to break.
This document discusses different types of waves, including their causes, characteristics, and behaviors. It defines key wave terminology like crest, trough, wavelength, and period. Wave size is determined by wind strength, duration, and fetch. Deep water waves travel in orbits while shallow water waves feel the bottom and change shape as they reach shore. Breakers come in spilling, plunging, and surging types. Longshore currents move sand along beaches, while rip currents pull water back out to sea. Tsunamis and rogue waves present unique wave hazards.
Ocean currents and waves are influenced by several factors. Countercurrents flow in the opposite direction of surface currents to fill voids where surface water has moved. Waves are formed based on wind speed, duration, and the expanse of open water. Wave size and type is also affected by these conditions, creating choppy, white-capped, or swelling waves. Upon reaching shallow water, waves can break and create surf that moves up the beach. Currents like undertow and rip currents also influence nearshore ocean water movement and transport water back out to sea. Tides are predictable ocean currents caused by the moon's gravity, resulting in high and low tides depending on its positioning.
8th Chapter 15 – Characteristics Of Waves (1)TomSmolka
Waves are a disturbance that transfers energy through a medium. There are two main types of waves: transverse waves, which move the medium perpendicular to the direction of energy transfer, and longitudinal waves, which move the medium parallel to the direction of energy transfer. Waves are created when a source of energy causes the medium to vibrate, such as vocal cords vibrating air to create sound waves. Ocean waves move in a circular motion beneath the surface and deposit their energy as breakers on the beach.
Subduction zones Convection currents and continental driftAhmed732
Subduction zones occur where one tectonic plate slides under another, usually around the Ring of Fire. Convection currents in the mantle cause rocks to rise and fall, powering plate tectonics at the Asthenosphere. Continental drift is when tectonic plate movements cause continents to shift positions over time, an idea first proposed by Alfred Wegener based on matching coastlines, shared rock types, and fossil evidence between continents that were once joined together in the supercontinent Pangaea.
The document discusses potential impacts of wave energy projects on surfing waves. It provides examples from studies in Cornwall, England and Orkney Islands, Scotland that used numerical modeling to show how wave energy converter (WEC) arrays can reduce wave heights both immediately behind and farther from the arrays, posing a threat to surfing conditions. Specifically, the studies found wave heights could be reduced by over 20% behind the arrays and around 10% hundreds of meters away, depending on the type and porosity of the WEC devices. Larger wave farms with many WECs or lower porosity devices that absorb more wave energy were found to have a greater potential impact on surfing waves and sedimentation near shorelines.
Waves are caused by wind dragging on the surface of water, causing ripples that grow into waves as the wind continues. As waves reach shallow water, they slow due to friction and break as the water piles up in an irregular pattern. When waves reach the coast, the crest breaks as it moves faster than the wave base. The swash pushes the wave energy up the beach, then the backwash runs back down. Constructive waves build beaches by carrying material up the beach in low, breaking swashes that deposit material, while destructive waves remove beach material in high, frequent waves where the backwash transports material out to sea.
Increased human activities in the Arctic has led to the diminishment of Arctic sea ice, about 70,000 km2 per year and has raised concerns for the region’s future. Measurements show that the ice has grown thinner, approximately 40% in the last two decades. The region is opened to increased human activities like commercial shipping, Arctic oil and gas exploration, in addition to deposition of soot by the maritime vessels. Black carbon from incomplete combustion is lodging over the ice and is causing graying of ice caps which was once a reflective surface to absorb more of sunlight and warm the water. Increased water temperatures are having grave impacts on the flora and fauna that are dependent on ice. In near future Polar bears are likely to face extinction as their breeding habitat is given to melting ice. Trapped green house gases like methane are released due to the melting areas of permafrost. Some simple maths can give us the glimpse of the complexity faced by the scientists in handling ice-ocean-climate models.
A tsunami is a series of waves caused by the displacement of a large volume of water, usually in an ocean. Earthquakes, volcanic eruptions, landslides, explosions, meteorite impacts and other disturbances above or below water can generate a tsunami. Unlike wind-driven waves, a tsunami is caused by the displacement of water. Most tsunamis are generated by earthquakes occurring in subduction zones along plate boundaries. Tsunamis have extremely long wavelengths, over 100 km, and travel at high speeds of 400 to 500 mph. Their long wavelengths allow tsunamis to travel great distances with little loss of energy, making them still destructive even after traveling thousands of miles.
This document defines explanation text and its purpose and structure. Explanation text is used to explain natural, social, scientific, and cultural phenomena. It effectively explains why objects exist and how they work. The rhetorical structure of explanation text includes a general statement, sequence of explanation in chronological order using generic participants, passive voice, present tense, action verbs, and pronouns, and a closing statement. An example of explanation text about tsunamis is provided that demonstrates these features.
1) Tsunamis are large, destructive waves caused by underwater earthquakes, volcanic eruptions, landslides or other disturbances that displace large volumes of water.
2) While difficult to detect in deep ocean waters, tsunamis slow down and increase in height as they reach shallow coastal waters, where they can cause catastrophic damage by rapidly flooding low-lying areas.
3) International warning systems use seismic and ocean monitoring technologies to detect tsunamis and issue alerts, but coastal evacuations must be rapid as some tsunamis can reach shore in just minutes.
The document discusses tsunamis. It begins by defining a tsunami as a series of waves generated by the rapid displacement of large volumes of water. It then explains that tsunamis can be caused by sudden movements of the sea floor or earth's crust at tectonic plate boundaries. Specific triggers like subduction zone earthquakes are described. The document concludes by noting that tsunamis cause extensive damage primarily through the huge wave of water that floods coastal areas.
The energy of sea waves can be absorbed by wave energy converters in a variety of manners, but in every case
the transferred power is highly fluctuating in several time-scales, especially the wave-to-wave or the wave group
time-scales. In most devices developed or considered so far, the final product is electrical energy to be supplied
to a grid. This paper discusses the use of sea wave energy with the help of oscillating column. The mechanism
converts the wave energy in to electrical power by converting the oscillating motion of waves in to rotary
motion. Using compression ring we can store the power produced by the impact. This stored energy can be
utilized in other strokes. The sea, which covers three quarters of the world’s surface, has been little utilized to
meet the peoples’ energy needs.
This is a PowerPoint Presentation based strictly on Tsunami.
Here one can find the following details about Tsunami:
Definition of Tsunami
Major Causes of Tsunami
Pictures Related to Tsunami
Analytical and Statistical information
And other more useful details .
So Hope you like it
Thankyou
Wave energy has significant potential as a renewable energy source. Ocean waves are generated by wind blowing across the water surface. The amount of energy in a wave depends on wind speed, duration, and the distance over which the wind blows known as fetch. Worldwide, the potential for wave energy has been estimated at over 2,000 terawatt hours per year, which is around 10% of current global electricity consumption. Several types of devices have been designed to capture the energy from ocean waves, such as the Wave Dragon which uses a reservoir and low-head turbines to convert wave motion into electricity. Wave energy offers a large, renewable resource but development has been limited by high costs and the need for suitable coastal locations with consistently strong wave
This document provides an overview of the key topics covered in a Grade 10 Physics course, including introductions, waves, sound, light, and reflections. The course introduces physics concepts like amplitude, wavelength, frequency, transverse and longitudinal waves. It explains sound waves and how pitch and loudness relate to frequency and amplitude. It also covers the electromagnetic spectrum, light as an electromagnetic wave, and reflections of light.
The document discusses regular and irregular ocean waves, and the Anaconda bulge wave power generator. It begins by explaining that ocean waves are typically irregular and time-varying in 3D. It then describes regular waves as 2D with constant height and period, while irregular waves have random characteristics. The rest summarizes the Anaconda generator, which is an anchored rubber tube that converts wave energy into electricity via bulge waves formed inside the tube that turn a turbine.
Tsunami waves have significantly longer wavelengths and periods compared to regular wind-driven water waves. While regular waves have wavelengths around 100m and periods of 1 second, tsunami waves can have wavelengths over 500km and periods of up to an hour. Additionally, tsunami waves travel much faster, up to 700km/h compared to 30km/h for regular waves. As tsunami waves approach shorelines, their speed decreases but the loss in speed is smaller than for regular waves, resulting in their highly destructive potential when they reach land.
Tsunami waves have significantly longer wavelengths and amplitudes, and faster speeds compared to regular water waves generated by wind. As tsunami waves approach shorelines, their speed decreases but the loss is smaller than for regular waves, and their amplitudes increase dramatically. While deep water tsunamis may have wavelengths over 500 km and speeds over 700 km/h, shallow water speeds are calculated using the formula v=√(gd) where g is gravity and d is water depth, and wavelengths decrease as depth decreases at shorelines.
Tsunamis are caused by displacement of the seafloor from earthquakes, landslides, volcanic eruptions, and other geological events. They travel very fast in deep ocean waters but slow down and grow in size as they reach shallow coastal waters. This can result in massive waves that cause extensive damage through hydrostatic, hydrodynamic, and shock impacts when they arrive at shore. Monitoring systems and mitigation measures like warning systems, sea walls, and evacuation planning can help reduce risks from tsunamis.
Tsunami are large sea waves caused by earthquakes, volcanic eruptions, or landslides under the sea. They are difficult to detect in deep water due to their extremely long wavelengths. When they reach shore, they can cause devastating damage through their immense force and volume of water. Countermeasures include maintaining tsunami detection equipment, educating people on evacuation procedures, constructing seawalls, and being especially alert after strong earthquakes.
Ocean waves are caused by wind and transfer energy through water, but do not transfer water from place to place. Key characteristics of waves include wavelength, amplitude, height, and period. Wave movement involves an orbital pattern, with energy moving through water in a circular motion. Near shore, waves begin to break as their movement becomes disrupted. Breaking waves can come crashing ashore. Some surfers seek out large storm waves for challenges they present. There is potential to harness wave power as an energy source.
Class 11 important questions for physics Friction in Soilds and LiquidsInfomatica Academy
Here you can get Class 11 Important Questions for Physics based on NCERT Textbook for Class XI. Physics Class 11 Important Questions are very helpful to score high marks in board exams. Here we have covered Important Questions on Friction in Solids and Liquids for Class 11 Physics subject.
This document discusses different types of waves, including their causes, characteristics, and behaviors. It defines key wave terminology like crest, trough, wavelength, and period. Wave size is determined by wind strength, duration, and fetch. Deep water waves travel in orbits while shallow water waves feel the bottom and change shape as they reach shore. Breakers come in spilling, plunging, and surging types. Longshore currents move sand along beaches, while rip currents pull water back out to sea. Tsunamis and rogue waves present unique wave hazards.
Ocean currents and waves are influenced by several factors. Countercurrents flow in the opposite direction of surface currents to fill voids where surface water has moved. Waves are formed based on wind speed, duration, and the expanse of open water. Wave size and type is also affected by these conditions, creating choppy, white-capped, or swelling waves. Upon reaching shallow water, waves can break and create surf that moves up the beach. Currents like undertow and rip currents also influence nearshore ocean water movement and transport water back out to sea. Tides are predictable ocean currents caused by the moon's gravity, resulting in high and low tides depending on its positioning.
8th Chapter 15 – Characteristics Of Waves (1)TomSmolka
Waves are a disturbance that transfers energy through a medium. There are two main types of waves: transverse waves, which move the medium perpendicular to the direction of energy transfer, and longitudinal waves, which move the medium parallel to the direction of energy transfer. Waves are created when a source of energy causes the medium to vibrate, such as vocal cords vibrating air to create sound waves. Ocean waves move in a circular motion beneath the surface and deposit their energy as breakers on the beach.
Subduction zones Convection currents and continental driftAhmed732
Subduction zones occur where one tectonic plate slides under another, usually around the Ring of Fire. Convection currents in the mantle cause rocks to rise and fall, powering plate tectonics at the Asthenosphere. Continental drift is when tectonic plate movements cause continents to shift positions over time, an idea first proposed by Alfred Wegener based on matching coastlines, shared rock types, and fossil evidence between continents that were once joined together in the supercontinent Pangaea.
The document discusses potential impacts of wave energy projects on surfing waves. It provides examples from studies in Cornwall, England and Orkney Islands, Scotland that used numerical modeling to show how wave energy converter (WEC) arrays can reduce wave heights both immediately behind and farther from the arrays, posing a threat to surfing conditions. Specifically, the studies found wave heights could be reduced by over 20% behind the arrays and around 10% hundreds of meters away, depending on the type and porosity of the WEC devices. Larger wave farms with many WECs or lower porosity devices that absorb more wave energy were found to have a greater potential impact on surfing waves and sedimentation near shorelines.
Waves are caused by wind dragging on the surface of water, causing ripples that grow into waves as the wind continues. As waves reach shallow water, they slow due to friction and break as the water piles up in an irregular pattern. When waves reach the coast, the crest breaks as it moves faster than the wave base. The swash pushes the wave energy up the beach, then the backwash runs back down. Constructive waves build beaches by carrying material up the beach in low, breaking swashes that deposit material, while destructive waves remove beach material in high, frequent waves where the backwash transports material out to sea.
Increased human activities in the Arctic has led to the diminishment of Arctic sea ice, about 70,000 km2 per year and has raised concerns for the region’s future. Measurements show that the ice has grown thinner, approximately 40% in the last two decades. The region is opened to increased human activities like commercial shipping, Arctic oil and gas exploration, in addition to deposition of soot by the maritime vessels. Black carbon from incomplete combustion is lodging over the ice and is causing graying of ice caps which was once a reflective surface to absorb more of sunlight and warm the water. Increased water temperatures are having grave impacts on the flora and fauna that are dependent on ice. In near future Polar bears are likely to face extinction as their breeding habitat is given to melting ice. Trapped green house gases like methane are released due to the melting areas of permafrost. Some simple maths can give us the glimpse of the complexity faced by the scientists in handling ice-ocean-climate models.
A tsunami is a series of waves caused by the displacement of a large volume of water, usually in an ocean. Earthquakes, volcanic eruptions, landslides, explosions, meteorite impacts and other disturbances above or below water can generate a tsunami. Unlike wind-driven waves, a tsunami is caused by the displacement of water. Most tsunamis are generated by earthquakes occurring in subduction zones along plate boundaries. Tsunamis have extremely long wavelengths, over 100 km, and travel at high speeds of 400 to 500 mph. Their long wavelengths allow tsunamis to travel great distances with little loss of energy, making them still destructive even after traveling thousands of miles.
This document defines explanation text and its purpose and structure. Explanation text is used to explain natural, social, scientific, and cultural phenomena. It effectively explains why objects exist and how they work. The rhetorical structure of explanation text includes a general statement, sequence of explanation in chronological order using generic participants, passive voice, present tense, action verbs, and pronouns, and a closing statement. An example of explanation text about tsunamis is provided that demonstrates these features.
1) Tsunamis are large, destructive waves caused by underwater earthquakes, volcanic eruptions, landslides or other disturbances that displace large volumes of water.
2) While difficult to detect in deep ocean waters, tsunamis slow down and increase in height as they reach shallow coastal waters, where they can cause catastrophic damage by rapidly flooding low-lying areas.
3) International warning systems use seismic and ocean monitoring technologies to detect tsunamis and issue alerts, but coastal evacuations must be rapid as some tsunamis can reach shore in just minutes.
The document discusses tsunamis. It begins by defining a tsunami as a series of waves generated by the rapid displacement of large volumes of water. It then explains that tsunamis can be caused by sudden movements of the sea floor or earth's crust at tectonic plate boundaries. Specific triggers like subduction zone earthquakes are described. The document concludes by noting that tsunamis cause extensive damage primarily through the huge wave of water that floods coastal areas.
The energy of sea waves can be absorbed by wave energy converters in a variety of manners, but in every case
the transferred power is highly fluctuating in several time-scales, especially the wave-to-wave or the wave group
time-scales. In most devices developed or considered so far, the final product is electrical energy to be supplied
to a grid. This paper discusses the use of sea wave energy with the help of oscillating column. The mechanism
converts the wave energy in to electrical power by converting the oscillating motion of waves in to rotary
motion. Using compression ring we can store the power produced by the impact. This stored energy can be
utilized in other strokes. The sea, which covers three quarters of the world’s surface, has been little utilized to
meet the peoples’ energy needs.
This is a PowerPoint Presentation based strictly on Tsunami.
Here one can find the following details about Tsunami:
Definition of Tsunami
Major Causes of Tsunami
Pictures Related to Tsunami
Analytical and Statistical information
And other more useful details .
So Hope you like it
Thankyou
Wave energy has significant potential as a renewable energy source. Ocean waves are generated by wind blowing across the water surface. The amount of energy in a wave depends on wind speed, duration, and the distance over which the wind blows known as fetch. Worldwide, the potential for wave energy has been estimated at over 2,000 terawatt hours per year, which is around 10% of current global electricity consumption. Several types of devices have been designed to capture the energy from ocean waves, such as the Wave Dragon which uses a reservoir and low-head turbines to convert wave motion into electricity. Wave energy offers a large, renewable resource but development has been limited by high costs and the need for suitable coastal locations with consistently strong wave
This document provides an overview of the key topics covered in a Grade 10 Physics course, including introductions, waves, sound, light, and reflections. The course introduces physics concepts like amplitude, wavelength, frequency, transverse and longitudinal waves. It explains sound waves and how pitch and loudness relate to frequency and amplitude. It also covers the electromagnetic spectrum, light as an electromagnetic wave, and reflections of light.
The document discusses regular and irregular ocean waves, and the Anaconda bulge wave power generator. It begins by explaining that ocean waves are typically irregular and time-varying in 3D. It then describes regular waves as 2D with constant height and period, while irregular waves have random characteristics. The rest summarizes the Anaconda generator, which is an anchored rubber tube that converts wave energy into electricity via bulge waves formed inside the tube that turn a turbine.
Tsunami waves have significantly longer wavelengths and periods compared to regular wind-driven water waves. While regular waves have wavelengths around 100m and periods of 1 second, tsunami waves can have wavelengths over 500km and periods of up to an hour. Additionally, tsunami waves travel much faster, up to 700km/h compared to 30km/h for regular waves. As tsunami waves approach shorelines, their speed decreases but the loss in speed is smaller than for regular waves, resulting in their highly destructive potential when they reach land.
Tsunami waves have significantly longer wavelengths and amplitudes, and faster speeds compared to regular water waves generated by wind. As tsunami waves approach shorelines, their speed decreases but the loss is smaller than for regular waves, and their amplitudes increase dramatically. While deep water tsunamis may have wavelengths over 500 km and speeds over 700 km/h, shallow water speeds are calculated using the formula v=√(gd) where g is gravity and d is water depth, and wavelengths decrease as depth decreases at shorelines.
Tsunamis are caused by displacement of the seafloor from earthquakes, landslides, volcanic eruptions, and other geological events. They travel very fast in deep ocean waters but slow down and grow in size as they reach shallow coastal waters. This can result in massive waves that cause extensive damage through hydrostatic, hydrodynamic, and shock impacts when they arrive at shore. Monitoring systems and mitigation measures like warning systems, sea walls, and evacuation planning can help reduce risks from tsunamis.
Tsunami are large sea waves caused by earthquakes, volcanic eruptions, or landslides under the sea. They are difficult to detect in deep water due to their extremely long wavelengths. When they reach shore, they can cause devastating damage through their immense force and volume of water. Countermeasures include maintaining tsunami detection equipment, educating people on evacuation procedures, constructing seawalls, and being especially alert after strong earthquakes.
Ocean waves are caused by wind and transfer energy through water, but do not transfer water from place to place. Key characteristics of waves include wavelength, amplitude, height, and period. Wave movement involves an orbital pattern, with energy moving through water in a circular motion. Near shore, waves begin to break as their movement becomes disrupted. Breaking waves can come crashing ashore. Some surfers seek out large storm waves for challenges they present. There is potential to harness wave power as an energy source.
Class 11 important questions for physics Friction in Soilds and LiquidsInfomatica Academy
Here you can get Class 11 Important Questions for Physics based on NCERT Textbook for Class XI. Physics Class 11 Important Questions are very helpful to score high marks in board exams. Here we have covered Important Questions on Friction in Solids and Liquids for Class 11 Physics subject.
This project report summarizes information about tsunamis. It defines a tsunami as a series of waves caused by the displacement of a large volume of water, generally in an ocean. Tsunamis are most commonly caused by earthquakes, but can also be triggered by volcanic eruptions, landslides, meteorite impacts, and nuclear explosions. The report describes different types of tsunamis based on their distance from the triggering event, and discusses tsunami warning systems, characteristics of tsunamis, historical tsunamis, and ways to prevent damage from tsunamis.
In this power point presentation you study about Tsunami
1) What is tsunami
2) Why come tsunami
3) What reason for coming tsunami
4) Tsunami causes
5) Tsunami wavelength
6) Tsunami wave speed
7) What happens when tsunami gets near shore?
8) And study Energy in tsunami
This document discusses various topics related to ocean waves and tides, including:
- Key terms used to describe waves like crest, trough, wavelength, etc.
- How waves propagate and their speed depends on factors like depth of water.
- Types of waves like deep water waves and shallow water waves.
- How waves interact through processes like interference and how wave height depends on wind speed, duration and fetch.
- Tides are caused mainly by the gravitational pull of the Moon, and spring and neap tides occur due to the relative positions of the Earth, Moon and Sun. Energy can potentially be harnessed from waves and tides by converting the kinetic energy of their motion.
Waves are disturbances that propagate through space and time, usually transferring energy without permanently displacing the medium. Mechanical waves exist in a medium and transfer energy from one point to another through changes in shape rather than movement of the medium itself. Breaking waves pose the greatest danger to boats as they can more easily capsize a craft, particularly if the height of an end-on wave exceeds 60% of the boat's length. Options for dealing with heavy weather and large waves include reducing sail, heaving to, using a sea anchor, or lying a-hull.
This document provides an overview of basic wave theory and forecasting techniques. It defines key wave characteristics like wavelength, height, and period. Deep water and shallow water dispersion relations are presented. Wave growth is explained as being dependent on wind speed, fetch, and duration. Empirical formulas are used to estimate wave height and period based on these factors. Methods for forecasting changing wind conditions and swell waves from distant storms are also outlined.
Light enters a diamond and undergoes total internal reflection within the diamond due to the high refractive index of diamond. This causes the light to exit the diamond at different angles, producing the sparkling effect. The facets on cut diamonds are designed to maximize the internal reflections and sparkling. Diamonds appear white due to dispersion of light into the visible spectrum by the crystal structure of diamond.
The document discusses wave power and harvesting wave energy through wave farms. It covers the physical concepts behind wave formation, technologies used to capture wave energy like point absorber buoys and oscillating water columns, and locations for wave farms. International examples of wave farms are provided, such as those in Scotland and Portugal. Both the economic and environmental implications of wave farming are addressed.
The Microsoft 365 Migration Tutorial For Beginner.pptxoperationspcvita
This presentation will help you understand the power of Microsoft 365. However, we have mentioned every productivity app included in Office 365. Additionally, we have suggested the migration situation related to Office 365 and how we can help you.
You can also read: https://www.systoolsgroup.com/updates/office-365-tenant-to-tenant-migration-step-by-step-complete-guide/
High performance Serverless Java on AWS- GoTo Amsterdam 2024Vadym Kazulkin
Java is for many years one of the most popular programming languages, but it used to have hard times in the Serverless community. Java is known for its high cold start times and high memory footprint, comparing to other programming languages like Node.js and Python. In this talk I'll look at the general best practices and techniques we can use to decrease memory consumption, cold start times for Java Serverless development on AWS including GraalVM (Native Image) and AWS own offering SnapStart based on Firecracker microVM snapshot and restore and CRaC (Coordinated Restore at Checkpoint) runtime hooks. I'll also provide a lot of benchmarking on Lambda functions trying out various deployment package sizes, Lambda memory settings, Java compilation options and HTTP (a)synchronous clients and measure their impact on cold and warm start times.
The Department of Veteran Affairs (VA) invited Taylor Paschal, Knowledge & Information Management Consultant at Enterprise Knowledge, to speak at a Knowledge Management Lunch and Learn hosted on June 12, 2024. All Office of Administration staff were invited to attend and received professional development credit for participating in the voluntary event.
The objectives of the Lunch and Learn presentation were to:
- Review what KM ‘is’ and ‘isn’t’
- Understand the value of KM and the benefits of engaging
- Define and reflect on your “what’s in it for me?”
- Share actionable ways you can participate in Knowledge - - Capture & Transfer
Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
To fill this gap, we propose adapting mutation testing (MuT) for task-oriented chatbots. To this end, we introduce a set of mutation operators that emulate faults in chatbot designs, an architecture that enables MuT on chatbots built using heterogeneous technologies, and a practical realisation as an Eclipse plugin. Moreover, we evaluate the applicability, effectiveness and efficiency of our approach on open-source chatbots, with promising results.
Skybuffer SAM4U tool for SAP license adoptionTatiana Kojar
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
Must Know Postgres Extension for DBA and Developer during MigrationMydbops
Mydbops Opensource Database Meetup 16
Topic: Must-Know PostgreSQL Extensions for Developers and DBAs During Migration
Speaker: Deepak Mahto, Founder of DataCloudGaze Consulting
Date & Time: 8th June | 10 AM - 1 PM IST
Venue: Bangalore International Centre, Bangalore
Abstract: Discover how PostgreSQL extensions can be your secret weapon! This talk explores how key extensions enhance database capabilities and streamline the migration process for users moving from other relational databases like Oracle.
Key Takeaways:
* Learn about crucial extensions like oracle_fdw, pgtt, and pg_audit that ease migration complexities.
* Gain valuable strategies for implementing these extensions in PostgreSQL to achieve license freedom.
* Discover how these key extensions can empower both developers and DBAs during the migration process.
* Don't miss this chance to gain practical knowledge from an industry expert and stay updated on the latest open-source database trends.
Mydbops Managed Services specializes in taking the pain out of database management while optimizing performance. Since 2015, we have been providing top-notch support and assistance for the top three open-source databases: MySQL, MongoDB, and PostgreSQL.
Our team offers a wide range of services, including assistance, support, consulting, 24/7 operations, and expertise in all relevant technologies. We help organizations improve their database's performance, scalability, efficiency, and availability.
Contact us: info@mydbops.com
Visit: https://www.mydbops.com/
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For more details and updates, please follow up the below links.
Meetup Page : https://www.meetup.com/mydbops-databa...
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This talk will cover ScyllaDB Architecture from the cluster-level view and zoom in on data distribution and internal node architecture. In the process, we will learn the secret sauce used to get ScyllaDB's high availability and superior performance. We will also touch on the upcoming changes to ScyllaDB architecture, moving to strongly consistent metadata and tablets.
"Scaling RAG Applications to serve millions of users", Kevin GoedeckeFwdays
How we managed to grow and scale a RAG application from zero to thousands of users in 7 months. Lessons from technical challenges around managing high load for LLMs, RAGs and Vector databases.
"$10 thousand per minute of downtime: architecture, queues, streaming and fin...Fwdays
Direct losses from downtime in 1 minute = $5-$10 thousand dollars. Reputation is priceless.
As part of the talk, we will consider the architectural strategies necessary for the development of highly loaded fintech solutions. We will focus on using queues and streaming to efficiently work and manage large amounts of data in real-time and to minimize latency.
We will focus special attention on the architectural patterns used in the design of the fintech system, microservices and event-driven architecture, which ensure scalability, fault tolerance, and consistency of the entire system.
5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
Dandelion Hashtable: beyond billion requests per second on a commodity serverAntonios Katsarakis
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
How information systems are built or acquired puts information, which is what they should be about, in a secondary place. Our language adapted accordingly, and we no longer talk about information systems but applications. Applications evolved in a way to break data into diverse fragments, tightly coupled with applications and expensive to integrate. The result is technical debt, which is re-paid by taking even bigger "loans", resulting in an ever-increasing technical debt. Software engineering and procurement practices work in sync with market forces to maintain this trend. This talk demonstrates how natural this situation is. The question is: can something be done to reverse the trend?
2. Ocean Waves
● Where do you think the energy comes from to create
ocean waves?
● Classify the following waves as transverse and
longitudinal:
● Sound Waves
● Ocean Waves
● Light Waves
● Distinguish between a tsunami and a typical ocean
wave.
● Draw the slope of a beach that would create waves
you would like to surf.
http://earthref.org/SCC
Scripps Classroom Connection
3. Outline
● Warm up
● Objectives
● Wave tank demonstration
● Video clips
● Notes
● Worksheet
● Discuss answers
● Build a surfboard!
http://earthref.org/SCC
Scripps Classroom Connection
4. Objectives
● Where does wave energy come from?
● Wavelength, Frequency and Wave speed of various
wave forms.
● Distinguish between tsunami waves and standard
ocean waves.
● Understand how bathymetry impacts waves.
http://earthref.org/SCC
Scripps Classroom Connection
7. Properties of Ocean Waves
Kind of Wave
wind-driven
seismic-sea wave
(tsunami)
Mode of
Generation
Range of
Wavelength
local or distant
winds that blow
across the
ocean's surface
about 100 m to
200 m
displacement of from 100 m to
the seafloor due >500 km; are at
to sub-marine least three times
earthquakes
the ocean depth
(most tsunamis),
at which the
volcanic
wave was
eruptions,
generated
landslides,
underwater
explosions, and
meteor impacts
Wave
Frequency
(Period)
Wave Speed
5 s to 20 s
about 40 to 90
km/h (40 km/h,
the speed of a
moped, is most
common)
10 min to 2 h
variable, up to
1,000 km/h (the
speed of a jet
plane)
http://www.pbs.org/wgbh/nova/teachers/activities/3208_tsu
nami.html#materials
http://earthref.org/SCC
Scripps Classroom Connection
8. Surfboard Instructions
● Materials: One piece of cardboard, scissors,
aluminum foil
● Use the materials to build a surfboard that you think
will be fast.
● Ask a partner to set the slope of the beach. You will
set the frequency of the wave, and see how long it
takes to get your board from one side of the tank to
the other.
http://earthref.org/SCC
Scripps Classroom Connection
9. Conclusion
• Ocean waves are
primarily generated by
wind energy
• Tsunamis are “shallow
water” waves driven by
geological forces
• Breaking waves are
caused by shoaling
Photo Credit: Brianne Moskovitz
http://earthref.org/SCC
Scripps Classroom Connection
Editor's Notes
AUTHORS: Brianne Moskovitz – Scripps Institution of OceanographyWHY: The ocean makes up 70% of planet earth. As wind travels across our oceans, the friction with the sea surface creates ocean waves. The energy from ocean waves has begun to be harnessed to use as a source of power. Other water waves encountered in the ocean are tsunamis, but they are not created by wind, but a displacement of the ground underwater. Students will learn the differences in structure of these waves in this PowerPoint. PICTURE/GRAPHICS CREDITS: n/aWEBSITES USED IN THIS PRESENTATION: Some have commercials before them. Go past commercials before showing to your class.http://dsc.discovery.com/videos/assignment-discovery-shorts-waves-of-destruction-tsunamis.htmlhttp://youtu.be/N-M0Q1P_EKshttp://www.nationalgeographic.com/volvooceanrace/interactives/waves/index.htmlhttp://oceanexplorer.noaa.gov/edu/learning/9_ocean_waves/activities/breaking_waves.htmlADDITIONAL READING: http://oceanexplorer.noaa.gov/edu/learning/#lesson9 – Lesson 9 is about Ocean Waves distinguishing between wind driven waves and tsunami.http://oceana.org/en/explore/marine-science/ocean-waves gives a cursory background.CONTEXT FOR USE:High School physics or marine science. This presentation should be given after Waves_1 (Introduction to Waves) and before Waves_3 (Ocean Acoustics). Seismogram basics may fit well before this lesson.MISCONCEPTIONS: Ocean waves are created by the moon’s gravity. A tsunami occurs when there is a big storm at sea.EVALUATION TIPS:n/aTEACHING NOTES: This powerpoint is a lesson on ocean waves to share with your class. With a basic understanding of the anatomy of waves, students will be able to learn more about the waves we see at the beach. If you have surfers in your class, they may find the discussion of the sea slope particularly interesting.
Notes: These questions should be used as a warm-up. Give students a few minutes to consider (or write down the answers) these questions, then a minute to discuss with a partner, and finally discuss with the class (maybe have students present what their partner thought). Once students have given their thoughts, you may clarify some of the answers:Wind energy creates typical ocean waves.Sound Waves are longitudinal (I like to remember this by thinking of longitudinal lines compressing and expanding). Ocean waves (on the surface) are transverse. Light waves are transverse.A tsunami is generated by a displacement of the seafloor. Typical ocean waves are created by wind.Any slope less than 15* would generate mild, surfable waves. Some daredevils may prefer a steeper slope.
Notes: Students have already done the warm upYou will go over the objectivesWith a wave tank, you will demonstrate the difference between wind driven waves and tsunami.There will be a few short video clips elaborating on tsunami.Students will take notes on the differences (source, wave height, wave length, wave speed) of typical ocean waves and tsunami on the worksheet (OceanWavesWksht.doc).Students will continue to answer questions on the worksheet using the wave simulator and breaking waves simulator.Discuss answers.With the knowledge they now have, students will build surfboards out of cardboard, scissors, and aluminum foil. Students will determine the slope of the beach, and use the paddle to create waves that their surfboard will catch.
Notes: These are the objectives being taught in this lesson. Students will learn that surface ocean wave energy comes from wind, distinguish between the wavelength, frequency, and wave speed of tsunamis and surface ocean waves, and understand how the seafloor creates breaking waves.
Notes: A wave tank will be used to demonstrate the differences between a tsunami and typical ocean wave.With a flat paddle pivoting from the base, create waves by moving your hand back and forth. This simulates a typical ocean wave.With a paddle resting on the “seafloor” attach string to jerk the paddle up quickly to simulate an earthquake. Students should notice that the resulting wave is much larger than the wind waves. This is a tsunami. Have students note the wavelength differences, frequency differences, and wave height differences.Go to the following website: http://oceanexplorer.noaa.gov/edu/learning/9_ocean_waves/activities/breaking_waves.html and do the Breaking Waves demonstration. This animation shows that as the slope of the beach becomes steeper, the size of the waves become larger. Ideal surfing is done on a moderately sloped beach. The materials of the seafloor, and slope of the beach determine the size of the breaking waves.
Notes: the short clip “Waves of Destruction” reinforces what students have learned about tsunamis with the wave tank demonstration. Reinforce that out in the middle of the ocean, the wave height of a tsunami may only be 1 m. If you are on a boat in the middle of the ocean, you will not be able to feel a tsunami, and it may be the best place to be in the case of a tsunami. The second clip is an animation of the path of the Japan Tsunami from March 11 2011. Note that the wave reaches the Hawaiian Islands around the 7 hour mark, and the San Diego area around 10 hours. This time difference gave enough warning for people to get to safety (high and inland). With a tsunami warning, many ships and boats are brought out to sea to prevent damage to the ships. Continue to slide 7 before beginning the wave simulator.
Notes: Hand out OceanWavesWksht.doc. Open the wave simulator as students fill out the chart on OceanWavesWksht.doc. Point out the mode of generation for both wind-driven and seismic-sea waves. The wavelength of a typical ocean wave is about the length of a football field. The wavelength of a tsunami is about the distance from San Diego, to Los Angeles and back! This is why a second wave usually doesn’t hit from 10 minutes to 2 hours after the first wave. As you describe each wave, ask students what to change (amplitude, wavelength, frequency) to get the wave to fit a typical ocean wave and tsunami. Have students describe how to make the bumpiest wave (that will get any sailor sick), and the flattest wave. The flattest wave should look similar to your description of the tsunami! Credits: http://www.pbs.org/wgbh/nova/teachers/activities/3208_tsunami.html#materials
Notes: Students will build their own surfboards using scissors, cardboard and aluminum foil. It may help having pictures of surfboards as examples. (One or more fins may help stabilize the board.) This can be a competition. Have students create waves, and see how long it takes for the board to get from one side to the other.Have fun with this.
Notes: This page reinforces what students have learned.The definition of a “shallow water” wave is a wave that feels the bottom of the sea floor. A typical ocean wave will only affect particles a few meters deep. A tsunami will affect particles on the seafloor. The tsunami warning system has sensors on the seafloor. This is how they interpret tsunami from typical ocean waves.Breaking waves are caused by the slope of the seafloor, know as shoaling of the beach.Photo Credit: Brianne Moskovitz