What is light? What is it made out of? And why can’t anything travel faster than light?
In: Physics
1. Light is pure energy, it is the left side of the e = mc2 equation
2. As far as we know it is fundamental, light is as low as it goes… as far as we know…
3. Einstein tells us that the faster matter goes, the more energy it takes to make it go even faster, exponentially, with an asymptote at the speed of light requiring infinite energy to go faster. The only reason light can go at the speed of light is that it is massless
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