The basics of solar eclipse
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An eclipse occurs when one celestial body passes in front of another, blocking its light. A solar eclipse happens when the moon passes between Earth and the sun, casting its shadow on Earth. There are several types of solar eclipses depending on how much of the sun is obscured by the moon, including total, annular, partial, and hybrid eclipses. The moon's shadow during an eclipse consists of the umbra, penumbra, and antumbra regions. Historical beliefs about eclipses included that they were caused by evil spirits or were omens of tragedy.
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Solar and lunar eclipses
A "lunar eclipse" and a "solar eclipse" refer to events involving three celestial bodies: the Sun ("solar"), the moon ("lunar"), and the Earth. A lunar eclipse occurs when the Earth passes between the Moon and the Sun, and the Earth's shadow obscures the moon or a portion of it. A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking all or a portion of the Sun.
The moon
The moon revolves around Earth once every 27 days, keeping the same side facing Earth. It reflects sunlight and its illuminated half changes shape in a cycle from new moon to first quarter to full moon to third quarter over 291⁄2 days. The moon is the closest celestial object to Earth at 384,000 km away. It has many impact craters and temperature extremes ranging from 127°C during the day to -173°C at night. Telescopes allow observation of details on the moon's surface.
Planet Mercury
Mercury is the planet closest to the Sun and the least explored. It is very difficult to study from Earth due to its proximity to the Sun, which means it never gets more than 28 degrees from the Sun's glare. Mercury is the smallest planet and fastest planet in its orbit, taking 88 days to revolve around the Sun. The Mariner 10 spacecraft was the first to visit Mercury in 1974 and photographed nearly half of its surface, finding a landscape scarred by impacts and wrinkled with great ridges.
Inner Planets
The inner planets Mercury, Venus, Earth, and Mars are similar to each other. They are the closest planets to the sun and are called terrestrial planets because they are rocky or earth-like. Mercury is the smallest planet and closest to the sun, with extreme temperature variations between its day and night sides. Venus is about the same size as Earth but has a dense carbon dioxide atmosphere that causes a runaway greenhouse effect and surface temperatures over 800 degrees Fahrenheit. Mars is about half the size of Earth, has a reddish appearance, seasonal polar ice caps, evidence of past water, and the lowest average temperature of the four inner planets.
Eclipses
1) Eclipses occur when one celestial body blocks the light from another. Lunar eclipses happen during a full moon when the Earth casts its shadow on the moon. Solar eclipses occur during a new moon when the moon passes between the Earth and sun.
2) There are three types of lunar eclipses - total, partial, and penumbral - and three types of solar eclipses - total, partial, and annular.
3) Eclipses do not occur every month because the moon's orbit is tilted relative to the Earth's orbit around the sun. Lunar eclipses are more frequent than solar eclipses.
Asteroids, comets, meteors
Asteroids are rocky objects that orbit the sun and are smaller than planets. Comets are made of ice and dust with elongated orbits around the sun, forming tails as they near the sun. Meteors enter Earth's atmosphere as meteorites and appear as "shooting stars", transitioning from meteoroid to meteor to meteorite. While both appear as streaks of light, comets remain stationary while meteors quickly streak across the sky.
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For primary students in grade 4 in Madrid bilingual state schools.
For more quality educational content, visit my YouTube channel:
https://www.youtube.com/channel/UCQGYTvyHHivB7GT9q04vT0A
What is Solar system? FORMATION OF SOLAR SYSTEM. SOLAR SYSTEM: Structure
The document summarizes the structure and components of the solar system. It describes:
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2. The solar system consists of the Sun and celestial objects bound to it by gravity, including eight planets composed of rock/metal or gas/hydrogen that orbit in nearly circular paths within the ecliptic plane.
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Solar and lunar eclipses
A "lunar eclipse" and a "solar eclipse" refer to events involving three celestial bodies: the Sun ("solar"), the moon ("lunar"), and the Earth. A lunar eclipse occurs when the Earth passes between the Moon and the Sun, and the Earth's shadow obscures the moon or a portion of it. A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking all or a portion of the Sun.
The moon
The moon revolves around Earth once every 27 days, keeping the same side facing Earth. It reflects sunlight and its illuminated half changes shape in a cycle from new moon to first quarter to full moon to third quarter over 291⁄2 days. The moon is the closest celestial object to Earth at 384,000 km away. It has many impact craters and temperature extremes ranging from 127°C during the day to -173°C at night. Telescopes allow observation of details on the moon's surface.
Planet Mercury
Mercury is the planet closest to the Sun and the least explored. It is very difficult to study from Earth due to its proximity to the Sun, which means it never gets more than 28 degrees from the Sun's glare. Mercury is the smallest planet and fastest planet in its orbit, taking 88 days to revolve around the Sun. The Mariner 10 spacecraft was the first to visit Mercury in 1974 and photographed nearly half of its surface, finding a landscape scarred by impacts and wrinkled with great ridges.
Inner Planets
The inner planets Mercury, Venus, Earth, and Mars are similar to each other. They are the closest planets to the sun and are called terrestrial planets because they are rocky or earth-like. Mercury is the smallest planet and closest to the sun, with extreme temperature variations between its day and night sides. Venus is about the same size as Earth but has a dense carbon dioxide atmosphere that causes a runaway greenhouse effect and surface temperatures over 800 degrees Fahrenheit. Mars is about half the size of Earth, has a reddish appearance, seasonal polar ice caps, evidence of past water, and the lowest average temperature of the four inner planets.
Eclipses
1) Eclipses occur when one celestial body blocks the light from another. Lunar eclipses happen during a full moon when the Earth casts its shadow on the moon. Solar eclipses occur during a new moon when the moon passes between the Earth and sun.
2) There are three types of lunar eclipses - total, partial, and penumbral - and three types of solar eclipses - total, partial, and annular.
3) Eclipses do not occur every month because the moon's orbit is tilted relative to the Earth's orbit around the sun. Lunar eclipses are more frequent than solar eclipses.
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Asteroids are rocky objects that orbit the sun and are smaller than planets. Comets are made of ice and dust with elongated orbits around the sun, forming tails as they near the sun. Meteors enter Earth's atmosphere as meteorites and appear as "shooting stars", transitioning from meteoroid to meteor to meteorite. While both appear as streaks of light, comets remain stationary while meteors quickly streak across the sky.
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Solar and lunar_eclipses1
There are two types of eclipses: solar and lunar. A lunar eclipse occurs when the moon passes into the Earth's shadow, appearing red or dark. A solar eclipse happens when the moon passes between the Earth and sun, casting its shadow on Earth. There are three types of each: total, partial, and penumbral/annular. Lunar eclipses are more common as anyone experiencing nighttime can see it, while only a small area experiences a solar eclipse due to the moon's small umbral shadow. Eclipses occur during eclipse seasons when the sun, Earth, and moon are directly aligned.
Solar_and_Lunar_Eclipses1.ppt
There are two types of eclipses: lunar eclipses, which occur when the moon passes into Earth's shadow, and solar eclipses, which occur when the moon passes between Earth and the sun. Lunar eclipses can be total, partial, or penumbral depending on how far into Earth's shadow the moon passes. Solar eclipses can be total, partial, or annular depending on the moon's position in its orbit. Eclipses do not occur daily because the moon's orbit is tilted relative to Earth's orbit around the sun, so the three bodies do not align perfectly most months.
Solar_and_Lunar_Eclipses1.ppt
There are two types of eclipses: lunar eclipses, which occur when the moon passes into Earth's shadow, and solar eclipses, which occur when the moon passes between Earth and the sun. Lunar eclipses can be total, partial, or penumbral depending on how far into Earth's shadow the moon passes. Solar eclipses can be total, partial, or annular depending on the moon's position in its orbit. Eclipses do not occur daily because the moon's orbit is tilted relative to Earth's orbit around the sun, so the three bodies do not align perfectly most months.
Solar_and_Lunar_Eclipses1.ppt
There are two types of eclipses: lunar eclipses, which occur when the moon passes into Earth's shadow, and solar eclipses, which occur when the moon passes between Earth and the sun. Lunar eclipses can be total, partial, or penumbral depending on how far into Earth's shadow the moon passes. Solar eclipses can be total, partial, or annular depending on the moon's position in its orbit. Eclipses do not occur daily because the moon's orbit is tilted relative to Earth's orbit around the sun, so the three bodies do not align perfectly most months.
An astronomical event that occurs when one celestial object (Earth or moon) m...
An astronomical event that occurs when one celestial object (Earth or moon) m...SILVINOHERNANDEZREYE
Solar and lunar eclipses occur when one celestial body passes into the shadow of another. There are two types of eclipses: (1) Solar eclipses happen when the moon passes between the earth and sun, casting its shadow on part of the earth. (2) Lunar eclipses occur when the earth passes between the sun and moon, casting its shadow on the moon. The document discusses the different types of solar and lunar eclipses as well as why we do not see an eclipse every month.Eclipse presentation by luchi castagnino las cumbres_april 2017
An eclipse occurs when the sun, moon, and earth are aligned. There are two types of eclipses: solar eclipses, where the moon passes between the earth and sun and casts a shadow on parts of earth, and lunar eclipses, where the earth passes between the moon and sun and blocks the sun's light from the moon. Safety precautions should be taken when viewing a solar eclipse to avoid eye damage from the sun's rays.
Learning about the moon(lunar eclipse)
The document discusses the moon and tides. It describes the different phases of the moon including new moon, waxing crescent, quarter moon, waxing gibbous, full moon, waning gibbous, last quarter, and waning crescent. It also explains the three types of lunar eclipses: total, partial, and penumbral. Additionally, it discusses what causes tides to rise and fall, noting that tides are caused by the gravitational pull of the sun and moon. Spring tides occur during full and new moons when their effects combine, while neap tides occur during quarter moons.
Think Science: What Are Eclipses, by Craig Bobchin
Craig Bobchin, of Astronomy4You, prepared this presentation for Texas Public Radio's Think Science event on April 8, 2024.
Astonishing Astronomy 101 - Chapter 1
This document provides an overview of astronomy topics including:
- The basic properties of Earth, Moon, Sun and other planets in our solar system.
- How the tilt of Earth's axis causes the seasons and the celestial sphere model used to understand sky motions.
- Key events like solstices, equinoxes, and lunar phases that occur as Earth orbits the Sun and the Moon orbits Earth.
- The causes and viewing locations of solar and lunar eclipses when the Sun, Earth and Moon are directly aligned.
- Concepts like sidereal time, precession and time zones used to measure and communicate about time and sky positions.
Think Science: What Are Eclipses (101), by Craig Bobchin
Craig Bobchin, of Astronomy4You, prepared this presentation for Texas Public Radio's Think Science event on April 8, 2024.
phases_eclipses.ppt
The document discusses lunar phases and eclipses. It explains that the moon orbits the Earth at an angle and its phases (new, waxing crescent, first quarter, etc.) are caused by the changing portion of its surface that is illuminated by the sun. It describes three types of lunar eclipses that occur when the Earth passes between the sun and moon, casting its shadow on the moon. Solar eclipses happen when the moon passes between the Earth and sun, casting its shadow on parts of the Earth. The document also briefly discusses how tides are caused by the gravitational pull of the moon and sun on the Earth's oceans and atmosphere.
Similar to The basics of solar eclipse (20)
An astronomical event that occurs when one celestial object (Earth or moon) m...
An astronomical event that occurs when one celestial object (Earth or moon) m...
Eclipse presentation by luchi castagnino las cumbres_april 2017
Eclipse presentation by luchi castagnino las cumbres_april 2017
Think Science: What Are Eclipses, by Craig Bobchin
Think Science: What Are Eclipses, by Craig Bobchin
Think Science: What Are Eclipses (101), by Craig Bobchin
Think Science: What Are Eclipses (101), by Craig Bobchin
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The document discusses soil resources and composition. Soil is a complex mixture of minerals, organic matter, water, and air. Organic matter like humus improves soil quality by enhancing moisture retention and providing nutrients. Soil texture depends on mineral particle size. The layers of soil include the O horizon of decomposing plant matter, the A horizon containing humus and minerals, the B horizon receiving materials from the A, the C horizon of weathered bedrock, and the R horizon of unweathered bedrock.
The environment of the philippines.pptx
This document discusses different coordinate systems including the Cartesian coordinate system, one-dimensional system, and three-dimensional system. It then focuses on two coordinate systems used for locating places on Earth: the Universal Transverse Mercator (UTM) system and the geographic coordinate system. The geographic coordinate system uses latitude and longitude measured in degrees relative to the equator and prime meridian to specify locations.
The location of the philippines
The document discusses the location of the Philippines and the different continents. It notes that a long time ago, all the continents were joined together in a landmass called Pangaea, surrounded by water called Panthalassa. It provides details about the seven continents, with Asia being the largest and Australia the smallest. The document specifies that the Philippines is located in Asia as one of the 11 Southeast Asian nations, and gives more information about the country's geography as an archipelago composed of over 7,000 islands grouped into Luzon, Visayas, and Mindanao, surrounded by various seas and oceans.
Atmosphere
This document discusses key concepts about the atmosphere including:
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Breezes
This document discusses several key concepts related to physics. It defines breeze as wind near bodies of water. It then explains specific heat capacity as the amount of heat required to raise the temperature of a material by one degree Celsius. Specific heat is described as how slowly an object heats up and cools down. The document also defines pressure as the ratio of force per unit area. Density is explained as the ratio of mass to volume, with denser materials sinking and less dense materials floating. Finally, it outlines the three mechanisms of heat transfer: conduction through physical contact, radiation through electromagnetic waves, and convection through fluid movement.
Seasons of the phils
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Weather instruments
The document describes various weather instruments and their uses, including anemometers, barometers, hygrometers, radars, radiosondes, weather balloons, weather satellites, wind vanes, and thermometers. It also discusses different weather disturbances like drizzles, typhoons, tropical cyclones, and hurricanes. Monsoons, trade winds, and the intertropical convergence zone are explained. Public storm warning signals issued by PAGASA are outlined. Greenhouse gases, the greenhouse effect, and global warming are briefly covered.
Biomes
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Separation techniques
This document describes several methods for separating mixtures: mechanical or manual separation uses hands or tools to separate solids; filtration uses a sieve or filter to separate insoluble particles from liquids; decantation relies on differences in density to separate solids from liquids; a separating funnel partitions liquid mixtures into immiscible phases; dissolution separates insoluble solids from soluble ones using a solvent; and distillation separates liquid solvents from solutions by boiling and condensing vapors.
Substances and mixtures(1st)
This document discusses substances and mixtures. It defines a pure substance as matter that has consistent properties and composition that does not vary between samples and cannot be separated into other substances using physical or mechanical means. A mixture is defined as the physical combination of two or more substances where the composition varies between samples. The document also notes that chemistry is the study of matter, its composition, and changes it undergoes. It categorizes mixtures as either homogeneous, with a uniform phase and appearance, or heterogeneous, with no uniform phase or appearance.
Sci method(gr.7)
Measurement is the skill of using the proper measuring tool for a given situation, such as using a ruler to measure length or a thermometer to measure temperature. Prediction is the ability to forecast a future outcome based on evidence of a pattern. Some common quantities that are measured include mass, length, temperature, time, and volume.
Volcanoes
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Stars
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Momentum
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Major climate zones on earth
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Factors that affect climate
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Constellations
Constellations are patterns of stars in the sky that represent pictures or shapes. There are 88 official constellations defined by the IAU. Circumpolar constellations like Ursa Major, Ursa Minor, Cassiopeia, Cepheus, and Draco can be seen all year from northern latitudes as they circle the North Star Polaris. Other notable constellations include Orion the hunter, Canis Major containing the brightest star Sirius, and Scorpius containing the bright star Antares.
Chapter 2
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Bond formation (l3)
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Aerobic and anaerobic respiration
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Describing and Interpreting an Immersive Learning Case with the Immersion Cub...
Current descriptions of immersive learning cases are often difficult or impossible to compare. This is due to a myriad of different options on what details to include, which aspects are relevant, and on the descriptive approaches employed. Also, these aspects often combine very specific details with more general guidelines or indicate intents and rationales without clarifying their implementation. In this paper we provide a method to describe immersive learning cases that is structured to enable comparisons, yet flexible enough to allow researchers and practitioners to decide which aspects to include. This method leverages a taxonomy that classifies educational aspects at three levels (uses, practices, and strategies) and then utilizes two frameworks, the Immersive Learning Brain and the Immersion Cube, to enable a structured description and interpretation of immersive learning cases. The method is then demonstrated on a published immersive learning case on training for wind turbine maintenance using virtual reality. Applying the method results in a structured artifact, the Immersive Learning Case Sheet, that tags the case with its proximal uses, practices, and strategies, and refines the free text case description to ensure that matching details are included. This contribution is thus a case description method in support of future comparative research of immersive learning cases. We then discuss how the resulting description and interpretation can be leveraged to change immersion learning cases, by enriching them (considering low-effort changes or additions) or innovating (exploring more challenging avenues of transformation). The method holds significant promise to support better-grounded research in immersive learning.
Immersive Learning That Works: Research Grounding and Paths Forward
We will metaverse into the essence of immersive learning, into its three dimensions and conceptual models. This approach encompasses elements from teaching methodologies to social involvement, through organizational concerns and technologies. Challenging the perception of learning as knowledge transfer, we introduce a 'Uses, Practices & Strategies' model operationalized by the 'Immersive Learning Brain' and ‘Immersion Cube’ frameworks. This approach offers a comprehensive guide through the intricacies of immersive educational experiences and spotlighting research frontiers, along the immersion dimensions of system, narrative, and agency. Our discourse extends to stakeholders beyond the academic sphere, addressing the interests of technologists, instructional designers, and policymakers. We span various contexts, from formal education to organizational transformation to the new horizon of an AI-pervasive society. This keynote aims to unite the iLRN community in a collaborative journey towards a future where immersive learning research and practice coalesce, paving the way for innovative educational research and practice landscapes.
waterlessdyeingtechnolgyusing carbon dioxide chemicalspdf
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快速办理(UAM毕业证书)马德里自治大学毕业证学位证一模一样
学校原件一模一样【微信：741003700 】《(UAM毕业证书)马德里自治大学毕业证学位证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
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◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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学校原件一模一样【微信：741003700 】《(salfor毕业证书)索尔福德大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Authoring a personal GPT for your research and practice: How we created the Q...
Thematic analysis in qualitative research is a time-consuming and systematic task, typically done using teams. Team members must ground their activities on common understandings of the major concepts underlying the thematic analysis, and define criteria for its development. However, conceptual misunderstandings, equivocations, and lack of adherence to criteria are challenges to the quality and speed of this process. Given the distributed and uncertain nature of this process, we wondered if the tasks in thematic analysis could be supported by readily available artificial intelligence chatbots. Our early efforts point to potential benefits: not just saving time in the coding process but better adherence to criteria and grounding, by increasing triangulation between humans and artificial intelligence. This tutorial will provide a description and demonstration of the process we followed, as two academic researchers, to develop a custom ChatGPT to assist with qualitative coding in the thematic data analysis process of immersive learning accounts in a survey of the academic literature: QUAL-E Immersive Learning Thematic Analysis Helper. In the hands-on time, participants will try out QUAL-E and develop their ideas for their own qualitative coding ChatGPT. Participants that have the paid ChatGPT Plus subscription can create a draft of their assistants. The organizers will provide course materials and slide deck that participants will be able to utilize to continue development of their custom GPT. The paid subscription to ChatGPT Plus is not required to participate in this workshop, just for trying out personal GPTs during it.
Direct Seeded Rice - Climate Smart Agriculture
Direct Seeded Rice - Climate Smart AgricultureInternational Food Policy Research Institute- South Asia Office
PPT on Direct Seeded Rice presented at the three-day 'Training and Validation Workshop on Modules of Climate Smart Agriculture (CSA) Technologies in South Asia' workshop on April 22, 2024.
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
Mending Clothing to Support Sustainable Fashion_CIMaR 2024.pdf
Ozturkcan, S., Berndt, A., & Angelakis, A. (2024). Mending clothing to support sustainable fashion. Presented at the 31st Annual Conference by the Consortium for International Marketing Research (CIMaR), 10-13 Jun 2024, University of Gävle, Sweden.
The cost of acquiring information by natural selection
This is a short talk that I gave at the Banff International Research Station workshop on Modeling and Theory in Population Biology. The idea is to try to understand how the burden of natural selection relates to the amount of information that selection puts into the genome.
It's based on the first part of this research paper:
The cost of information acquisition by natural selection
Ryan Seamus McGee, Olivia Kosterlitz, Artem Kaznatcheev, Benjamin Kerr, Carl T. Bergstrom
bioRxiv 2022.07.02.498577; doi: https://doi.org/10.1101/2022.07.02.498577
Travis Hills of MN is Making Clean Water Accessible to All Through High Flux ...
By harnessing the power of High Flux Vacuum Membrane Distillation, Travis Hills from MN envisions a future where clean and safe drinking water is accessible to all, regardless of geographical location or economic status.
Applied Science: Thermodynamics, Laws & Methodology.pdf
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.
Compexometric titration/Chelatorphy titration/chelating titration
Classification
Metal ion ion indicators
Masking and demasking reagents
Estimation of Magnisium sulphate
Calcium gluconate
Complexometric Titration/ chelatometry titration/chelating titration, introduction, Types-
1.Direct Titration
2.Back Titration
3.Replacement Titration
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Masking agent, Demasking agents
formation of complex
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Indicators/Metal ion indicators/ Metallochromic indicators/pM indicators,
Visual Technique,PM indicators (metallochromic), Indicators of pH, Redox Indicators
Instrumental Techniques-Photometry
Potentiometry
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Complex titration with EDTA.
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Presentation given at the official farewell of Prof Ken Gillet at Wageningen on 13 June 2024
Gadgets for management of stored product pests_Dr.UPR.pdf
Insectsplayamajorroleinthedeteriorationoffoodgrainscausingbothquantitativeandqualitativelosses
Wellprovedthatnogranariescanbefilledwithgrainswithoutinsectsastheharvestedproducecontainegg(or)larvae(or)pupae(or)adultinsectinthembecauseoffieldcarryoverinfestationwhichcannotbeavoidedindevelopingcountrieslikeIndia
Simpletechnologiesfortimelydetectionofinsectsinthestoredproduceandtherebyplantimelycontrolmeasures
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The basics of solar eclipse
- 2. • An eclipse is a natural shading or darkening of one celestial body by another.
- 4. • A solar eclipse or the eclipse of the sun occurs when the moon passes between Earth and the sun, the moon casts a shadow over Earth.
- 5. Syzygy is the nearly straight-line formation of three celestial bodies – which lasts only for about 7.5 minutes.
- 7. TOTAL ECLIPSE - happens when the dark shadow of the moon completely obscures the intensely bright light of the sun, allowing much fainter solar corona to be visible - occurs when total darkness is experienced
- 8. ANNULAR ECLIPSE - When the moon appears to pass across the middle of the sun but is too small to cover the disk of the sun completely, an annular eclipse occur.
- 9. ANNULAR ECLIPSE - The sun seems to be a very bright ring surrounding the dark disc of the moon. - rare type of eclipse - can be observed only during the new moon
- 10. ANNULAR ECLIPSE - The sun seems to be a very bright ring surrounding the dark disc of the moon. - rare type of eclipse - can be observed only during the new moon
- 12. The shadow of an eclipse has THREE DISTINCT REGIONS: • UMBRA - is a dark, slender cone part of the shadow where all sunlight is completely blocked out - it is surrounded by the penumbra • PENUMBRA - a lighter, funnel-shaped, outer part shadow from which the sunlight is partially obscured
- 13. The shadow of an eclipse has THREE DISTINCT REGIONS: • ANTUMBRA - is the region from which the occluding body appears entirely contained within the disc of the light source
- 14. HYBRID ECLIPSE - is comparatively rare - In some areas on the surface of Earth it appears as a total eclipse, whereas at other points it appears as an annular eclipse
- 15. PARTIAL ECLIPSE - occurs when the sun and the moon are not exactly in line and the moon only partially obscures the sun - can usually be seen from a large part of Earth outside of the track of an annular or total eclipse
- 16. Safety during Eclipse Observation • You are advised not to look directly at the sun with the naked eye or with any optical device such as binoculars or a telescope, as doing so can lead to blindness. • One of the easiest ways to view a daytime eclipse without damaging the eyes is by wearing a solar filter (figure 11.10).
- 17. How a Solar Eclipse Happens • The sun is farther away than the moon, but is a much larger celestial object. • In a solar eclipse, the moon and the sun appear almost the same size. • Solar eclipses occur during the new moon, when the moon is between the Earth and the sun. • There are at least two lunar eclipses each year, although a number of these are only penumbral, when the moon is not seen to be darkened very much.
- 18. Some Beliefs and Practices in Relation to Eclipses • In olden times, people say that an evil spirit or a dragon is trying to swallow the sun. Those who believed this would make noise by beating gongs, by screaming or crying , by shouting, or by hitting other metallic objects to cast out the evil spirit or dragon who overshadowed the solar disk. Some people practiced various rituals to return the sun in the sky. After the sun cameback, they celebrated this event with animal sacrifices.
- 19. Some Beliefs and Practices in Relation to Eclipses • People believe that the said solar eclipse is a sign of coming tragedy that will happen within the area where it can be seen. They considered it as a message from the gods and goddesses. • Ancient astronomers believed that eclipses proved that Earth is round and not flat