This guy shoots a pulse of a laser only a few mm long through a bottle of water and you can actually see the light pass through the water. Pretty neat.

https://youtu.be/mfgsQX78hg8

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- With out god, life is everything.
- God is an ever receding pocket of scientific ignorance that's getting smaller and smaller as time moves on..." Neil DeGrasse Tyson
- You can pray for me, I'll think for you.
- When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours.