New posts in Light

Chemistry - How were x-ray diffraction patterns deciphered before computers?

Chemistry - When a candle burns, why does the top of wick glow if bottom of flame is hottest?

Lumens specs when buying a flashlight/torch. Why maglite has only 680lm but cheap ones have 900,000?

Omnidirectional LED, is it possible?

Can antennas be viewed as light sources?

Why does an LED have to be a diode?

If Infrared not visible, why the red LEDs?

Are LEDs in modern streetlights usually pulsed? If so, roughly what frequency?

Why are Edison screws allowed to be used?

Will repeatedly turning a light bulb on and off damage it?