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How Do Thermal Imaging Goggles Work?

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Added by in SciShow Science and Technology
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Movies like Predator reveal how useful thermal imaging goggles can be, but why do hot objects give off infrared radiation to begin with?

Hosted by: Michael Aranda

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Sources:

http://galileo.phys.virginia.edu/classes/252/black_body_radiation.html
http://astronomy.swin.edu.au/cosmos/B/Blackbody+Radiation
https://electronics.howstuffworks.com/gadgets/high-tech-gadgets/nightvision.htm
https://www.smithsonianmag.com/smithsonian-institution/ask-smithsonian-how-does-night-vision-work-180956656/
https://www.britannica.com/science/light/Unpolarized-light#ref582113
https://www.sciencedirect.com/science/book/9780123869449

Images:

http://www.thinkstockphotos.com/image/stock-photo-human-body-thermal-image/504239752
https://en.wikipedia.org/wiki/File:Thermally_Agitated_Molecule.gif
https://en.wikipedia.org/wiki/File:EM_Spectrum_Properties_edit.svg
https://en.wikipedia.org/wiki/File:Black_body.svg
https://commons.wikimedia.org/wiki/File:Ilc_9yr_moll4096.png

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