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Sea urchin spines show exceptional mechanoelectrical sensing from gradient structures and can be replicated in 3D-printed mimics for underwater sensing.
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More than a quarter of English councils will miss an official deadline to introduce weekly food waste collections to all homes, a BBC investigation has found.
encrypting documents and other files
The US Space Force owns and operates the GPS constellation, providing civilian and military-grade positioning, navigation, and timing signals to cell phones, airliners, naval ships, precision munitions, and a whole lot more.