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omnia mea mecum fero
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Yoram Reshef | The Light Catcher

Yoram Reshef | The Light Catcher | omnia mea mecum fero | Scoop.it
For the last 20 years, we serve the future technology with our photography art world...

Via Alessio Erioli, Andrea Graziano, Sakis Koukouvis
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Can We Go the Speed of Light? (The Principle of Relativity)

Einstein's classic thought experiment involves sitting on a train travelling at the speed of light. If you hold a mirror in front of your face, will you see your reflection in a mirror? How could light from your face reach the mirror if the mirror is travelling away from you? But it would be a pretty spooky train if you couldn't see your reflection so Einstein felt this solution wasn't realistic. On the other hand if you could see your reflection, it would mean light was travelling at the speed of light inside the train. But that meant the same light observed from outside the train would be going twice the speed of light. This again seems inconsistent. So Einstein resolved that you must see your reflection but that light must travel at the same speed inside and outside the train. The only way this is possible is if space and time are perceived differently by observers inside and outside the train.


Via Sakis Koukouvis
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MIT Develops Metamaterial That Slows Down The Speed of Light

MIT Develops Metamaterial That Slows Down The Speed of Light | omnia mea mecum fero | Scoop.it
There's always a lot of fuss about getting other things to go as fast or faster than the speed of light. But what about changing the speed of light? Is there anything useful we could do by slowing light down rather than speeding things up?

Via Sakis Koukouvis
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