[eric], inspired by this Wired article, built his own haptic compass. Named “the clown belt”, it is a belt with 12 little vibrating motors mounted evenly all around. A digital compass vibrates ...
The Compass Call system employs the offensive counterinformation and electronic attack or EA capabilities in support of U.S. and Coalition tactical air, surface, and special operations forces.
With its ability to disrupt enemy networks, support air dominance, and counter new threats, the USAF EA-37B Compass Call is transformative.
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