Only one particle of matter for every 100,000,000 photons – the Universe is mostly energy.
https://www.facebook.com/reel/447814171247156/?mibextid=9drbnH
Electronics & Stuff, a lot about LEDs
Only one particle of matter for every 100,000,000 photons – the Universe is mostly energy.
https://www.facebook.com/reel/447814171247156/?mibextid=9drbnH