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Artificial light and Sunlight are two very different. Sunlight is like whole light, artificial light is like junk light. Welcome to this second episode of The Panafrican Science Review. Episode 1 is here: • Most Sunlight is Invis... Please be sure to subscribe, comment, like and share 👍🏿🙏🏿
00:18:02 Electromagnetic Spectrum
01:06:29 Different wavelengths = different colours
02:08:20 Most sunlight is invisible to humans
02:52:23 Sunlight emits a wider range of wavelengths than artificial lights
04:37:24 LEDs emit blue light which triggers stress hormones
05:46:18 Spectral range of sunlight changes throughout the day
08:13:27 Sunlight is far brighter than artificial light
09:27:29 Different wavelengths penetrate differently into our bodies
References:
"The electromagnetic spectrum:"
www.sciencelea...
Colours of light
www.sciencelea...
"Solar Radiation Management"
geoengineering...
Emission spectra of different light sources
www.researchga...
Sources of Visible Light
micro.magnet.f...
Estimate of Lux output of light sources
micro.magnet.f...
The skin cross-section showing dermal penetration by different wavelengths of light
commons.wikime...