Electromagnetic Spectrum by lava rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0 Made with a spice of waves. en-us 2019-01-28 16:05:08 UTC 2025-05-15 17:14:39 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Planets.png 1. far infrared lava_rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324997697 similar manner to near infrared but differs in terms of wavelength. Science aside, the tangible benefits of far infrared are significant, as this system heats the body from within and produces the kind of profuse sweating normally only seen with traditional wet-dry sauna systems.
Examples: Warm objects, such as the human body, produce large amounts of infrared, and heat-sensitive CCTV cameras work by detecting these infrared waves. Half of the energy produced by the sun is infrared, so we are being bombarded by it constantly.
https://infraredsauna.com/blog/near-infrared-vs-far-infrared-heat/]]> 2019-01-28 16:08:13 UTC https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324997697 2. electromagnetic spectrum lava_rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324997922 used by scientists to describe the entire range of light that exists. the range of wavelengths or frequencies over which electromagnetic radiation extends.
https://earthsky.org/space/what-is-the-electromagnetic-spectrum]]> 2019-01-28 16:08:41 UTC https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324997922 3. gamma radiation lava_rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324997975 Gamma-rays can be used to treat cancer, and gamma-ray bursts are studied by astronomers. A penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei.
https://www.livescience.com/50215-gamma-rays.html]]> 2019-01-28 16:08:47 UTC https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324997975 4. infrared radiation lava_rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998015 part of the EM spectrum that people encounter most in everyday life, although much of it goes unnoticed. It is invisible to human eyes, but people can feel it as heat
https://www.livescience.com/50260-infrared-radiation.html]]> 2019-01-28 16:08:52 UTC https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998015 5. microwave radiation lava_rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998092 Microwaves are a non-ionizing radiation, produced inside the oven by an electron tube called a magnet. The microwaves are reflected within the metal interior of the oven where they are absorbed by food.
examples: Microwaves are used to detect speeding cars and to send telephone and television communications. Industry uses microwaves to dry and cure plywood, to cure rubber and resins, to raise bread and doughnuts, and to cook potato chips.
https://www.fda.gov/radiation-emittingproducts/resourcesforyouradiationemittingproducts/ucm252762.htm]]> 2019-01-28 16:08:59 UTC https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998092 6. near infrared lava_rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998137 Near infrared light is contained within the spectrum of natural sunlight. The sun emits nearly half of its total energy in the near infrared (NIR) spectrum. We are biologically wired to use near infrared energy, much like sunlight is needed to produce vitamin D. Our bodies require this energy from sunlight to survive and to thrive.
Near infrared systems are effective at rejuvenating the skin, help raise core body temperature, improve circulation and can provide pain relief.
https://infraredsauna.com/blog/near-infrared-vs-far-infrared-heat/
]]> 2019-01-28 16:09:05 UTC https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998137 7. photoelectric effect lava_rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998163 The photoelectric effect occurs when light shines on a metal. Sometimes electrons are emitted.
http://physics.bu.edu/~duffy/semester2/c34_photoelectric.html
]]> 2019-01-28 16:09:10 UTC https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998163 8. picometer lava_rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998227  one trillionth of a metre, which is the SI base unit of length.
https://www.vocabulary.com/dictionary/picometer]]> 2019-01-28 16:09:16 UTC https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998227 9. radio radiation lava_rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998308  Radio-wave communications signals travel through the air in a straight line, reflect off of clouds or layers of the ionosphere, or are relayed by satellites in space. They are used in standard broadcast radio and television, shortwave radio, navigation and air-traffic control, cellular telephony, and even remote-controlled toys.
https://www.britannica.com/science/radio-wave]]> 2019-01-28 16:09:24 UTC https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998308 10. ultraviolet radiation lava_rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998345
Although ultraviolet light is energetic enough to break some chemical bonds, it is not (usually) considered a form of ionizing radiation. The energy absorbed by molecules can provide the activation energy to start chemical reactions and may cause some materials to fluoresce or phosphoresce.
https://www.thoughtco.com/definition-of-ultraviolet-radiation-604675]]> 2019-01-28 16:09:30 UTC https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998345 11. visible light radiation lava_rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998405 Visible light is the light humans see with their eyes. Visible light comes primarily from the sun, but also from other natural and manmade light sources. The visible light spectrum is the range of wavelengths that make up visible light.
https://sciencing.com/properties-visible-light-spectrum-8101926.html]]> 2019-01-28 16:09:36 UTC https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998405 12. wave-particle duality lava_rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998451 define light as a collection of one or more photons propagating through space as electromagnetic waves.
https://science.howstuffworks.com/light6.htm]]> 2019-01-28 16:09:42 UTC https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998451 13. X-ray radiation lava_rozhgar https://padlet.com/lava_rozhgar/ysqi9fjgaim0/wish/324998513 An X-ray is a quick, painless test that produces images of the structures inside your body — particularly your bones.
X-ray beams pass through your body, and they are absorbed in different amounts depending on the density of the material they pass through.
https://www.mayoclinic.org/tests-procedures/x-ray/about/pac-20395303
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