How do you make a light wave vanish and then reappear elsewhere?

It sounds like a conjuring trick. You shine a light into a gas, and the light gets swallowed. Then you pump the gas into another container, say the magic words, and the light comes out again.

Read the story here.

How do you make a light wave vanish and then reappear elsewhere?

It sounds like a conjuring trick. You shine a light into a gas, and the light gets swallowed. Then you pump the gas into another container, say the magic words, and the light comes out again.

Read the story here.