Why Does Snow “Squeak” When Stepped On?

As much as we know about the white stuff that has blanketed much of the U.S. this winter, the sound that snow makes when trod underfoot remains something of a mystery

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How This Bug-Inspired Compound Eye Could Transform Missile Seeker Tech

The USAF is working on a fly-like artificial compound eye that could one day be used for seekers on missiles as well as other targeting systems. This is hardly the first time the DoD has looked to mother nature for good ideas, but compound eye technology has the potential to greatly increase the field of view and fidelity over existing systems, all at a low cost.

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