How Did We Figure Out What Light Is?
Try CuriosityStream today: http://curiositystream.com/smart Here's a bright idea: Subscribe ▻▻ http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Beyond what we can touch, taste,...
==========
If a light is on and no one is around to see it, is anything actually lit up? The ancient Greeks didn’t think so. They thought vision was due to rays ‘shot out’ and returned to the eye. That’s… not how it works. Unless your name is Cyclops. It took over 2,000 years, from those Greeks all the way to Einstein, to figure out how we see the world…. And each answer led to other questions - Is light a wave, or a particle? Is it instantaneous, or does it travel at some speed? Does it even exist independent of our perception? Through these brilliant discoveries about light, we’ve gradually illuminated our place in the universe. [INTRO] Beyond what we can touch, smell, hear, and taste, we experience the universe through light. The first theories...
==========
If a light is on and no one is around to see it, is anything actually lit up? The ancient Greeks didn’t think so. They thought vision was due to rays ‘shot out’ and returned to the eye. That’s… not how it works. Unless your name is Cyclops. It took over 2,000 years, from those Greeks all the way to Einstein, to figure out how we see the world…. And each answer led to other questions - Is light a wave, or a particle? Is it instantaneous, or does it travel at some speed? Does it even exist independent of our perception? Through these brilliant discoveries about light, we’ve gradually illuminated our place in the universe. [INTRO] Beyond what we can touch, smell, hear, and taste, we experience the universe through light. The first theories...
