[politician]

If you can transmit power to a 1cm bubble in space, you may be able to offset it into, say, brain tissue. Brain tissue probably doesn't due too well under a focused heat source.

[ivanca]

That's were magnetos helmet comes in. In all seriousness what material (or device) could stop this from working?

[tga_d]

A simple Faraday cage, I would think. Hard part is making it look good.

[Jack000]

we're going to need that transparent aluminum

[SixSigma]

aka sapphire & ruby

[aidenn0]

Actually I seem to recall that the eyes are much more sensitive to heat; the eyes have sensitive tissue and cannot shed heat as fast as the brain.