We all know light travels much faster than sound. This is why when you’re caught in a storm, you see the flash of lightning much sooner than you hear the roar of the thunder.
Now researchers have similarly converted a “flash of lightning into thunder” on a tiny, electronic scale by successfully storing light as sound for the first time. In particular, information from light waves was converted into sound waves on a computer chip and back again in a significant step towards faster computing.
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