When bats echolocate, they emit rapid - fire, high - frequency clicks (usually out of range of human hearing), then swivel their ears like radar dishes to catch the echoes, a system sensitive enough to detect objects as thin as a human hair and tiny, night - flying insects. (sciencemag.org)
A DOW is a flatbed truck equipped with hydraulic feet to increase stability, a large radar dish that swivels when in operating mode, and an eight - foot antenna that sends out three - centimeter microwaves. (discovermagazine.com)
There's a roof - mounted radar dish just waiting to be snapped off during a daring escape and a laser cannon to fight off Imperial forces. (bestride.com)