Reply to post: Can't you...

Laser beam sky mirage cannon can spy on enemies and generate Star Trek-style shields

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Can't you...

change the refractive index of a gas by changing the density of it? And doesn't a sound wave actually cause compression and rarefaction of the gas it is travelling through? So, couldn't you create a lens defined by sound waves? Just a thought. I mean, a sonic lens sounds cool. It's about time we had one.

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