Electromagnetic radiation spans a broad range of wavelengths and frequencies known as the electromagnetic spectrum. It includes radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. Each region has a characteristic range of wavelengths and frequencies, and different applications such as communications, heating, vision, industrial processes, and medical treatments.
Electromagnetic Spectrum. The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes – the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Electromagnetic Spectrum. The electromagnetic (EM) spectrum is the range of all types of EM radiation. Radiation is energy that travels and spreads out as it goes – the visible light that comes from a lamp in your house and the radio waves that come from a radio station are two types of electromagnetic radiation.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Francesca Gottschalk - How can education support child empowerment.pptxEduSkills OECD
Francesca Gottschalk from the OECD’s Centre for Educational Research and Innovation presents at the Ask an Expert Webinar: How can education support child empowerment?
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
1. Electromagnetic Radiation and Spectrum
Electromagnetic radiation is a type of energy that is all
around us and takes many forms, such as radio waves,
microwaves, X-rays and gamma-rays. Sunlight is also a
form of electromagnetic energy, but visible light is only a
small portion of the electromagnetic spectrum, which
contains a broad range of wavelengths.
In 1873, Scottish physicist James Clerk Maxwell
showed that the two phenomena were connected and
developed a unified theory of electromagnetism. The
study of electromagnetism deals with how electrically
charged particles interact with each other and with
magnetic fields.
2. In terms of the modern quantum theory,
electromagnetic radiation is the flow of photons (also
called light quanta) through space. Photons are
packets of energy that always move with the universal
speed of light.
3. Properties of EMR
Wavelength: the wavelength is the length of one
complete wave cycle which can be measured as
the distance between two successive wave
peaks.
Frequency: frequency refers to the number of
cycles of a wave passing a fixed point per unit
of time. it is generally measured in hertz(Hz).
The frequency is inversely proportional to
wavelength. Means higher wavelength lower
frequency.
Amplitude
The amplitude (a) of a wave is the distance from
the centre line (or the still position) to the top of
a crest or to the bottom of a trough.
7. Electromagnetic radiation spans an enormous range of wavelengths
and frequencies. This range is known as the electromagnetic
spectrum, The electromagnetic spectrum is generally divided into
seven regions, in order of decreasing wavelength and increasing
energy and frequency. The common designations are radio waves,
microwaves, infrared (IR), visible light, ultraviolet (UV) light, X-rays
and gamma-rays.
Radio waves
Radio waves are at the lowest range of the electromagnetic spectrum,
with frequencies of up to about 30 billion hertz, or 30 gigahertz (GHz),
and wavelengths greater than about 0.4 inch (10 millimeters). Radio is
used primarily for communications, including voice, data and
entertainment media.
Microwave fall in the range of the electromagnetic spectrum between
radio and IR. They have frequencies from about 3 GHz to 30 trillion
hertz, or 30 terahertz (THz), and wavelengths of about 0.004 to 0.4
inch (0.1 to 10 mm). Microwaves are used for high-bandwidth
communications and radar, as well as for a heat source for microwave
ovens and industrial applications.
8. Infrared
Infrared is in the range of the electromagnetic spectrum between
microwaves and visible light. IR has frequencies from about 30 to 400 THz
and wavelengths of about 0.00003 to 0.004 inch (740 nanometers to 100
micrometers). IR light is invisible to human eyes, but we can feel it as heat if
the intensity is sufficient.
Visible light
Visible light is found in the middle of the electromagnetic spectrum, between
IR and UV. It has frequencies of about 400 to 800 THz and wavelengths of
about 0.000015 to 0.00003 inch (380 to 740 nanometers). More generally,
visible light is defined as the wavelengths that are visible to most human
eyes.
Ultraviolet
Ultraviolet light is the range of the electromagnetic spectrum between visible
light and X-rays. It has frequencies of about 8 × 1014 to 3 x 1016 Hz and
wavelengths of about 0.0000004 to 0.000015 inch (10 to 380 nanometers).
UV light is a component of sunlight, but it is invisible to the human eye. It
has numerous medical and industrial applications, but it can damage living
tissue.
9. X-rays
X-rays are roughly classified into two types: soft X-rays and hard X-
rays. Soft X-rays make up the range of the electromagnetic spectrum
between UV and gamma-rays. Soft X-rays have frequencies of about 3
× 1016 to 1018 Hz and wavelengths of about 4 × 10−7 to 4 × 10−8 inch
(100 picometers to 10 nanometers). Hard X-rays occupy the same
region of the electromagnetic spectrum as gamma-rays. The only
difference between them is their source: X-rays are produced by
accelerating electrons, while gamma-rays are produced by atomic
nuclei.
Gamma-rays
Gamma-rays are in the range of the spectrum above soft X-rays.
Gamma-rays have frequencies greater than about 1018 Hz and
wavelengths of less than 4 × 10−9 inch (100 picometers). Gamma
radiation causes damage to living tissue, which makes it useful for
killing cancer cells when applied in carefully measured doses to small
regions. Uncontrolled exposure, though, is extremely dangerous to
humans.
10.
11. RADIO WAVES
•Have the longest wavelengths
and lowest frequencies of all the
electromagnetic waves.
13. VISIBLE LIGHT
•Shorter wavelength and
higher frequency than
infrared rays.
•Electromagnetic waves we
can see.
•Longest wavelength= red
light
•Shortest wavelength= violet
(purple) light