iCandy: Checking Things Out

A space telescope's mirror array, a liquid scanner at airports, and a body-mounted video camera are among the tools for examining what's around us

1 min read

Photo: Thomas Peter/Reuters
To foil attempts to bring explosives onto commercial airlines, aviation authorities have instituted rules that make all but the tiniest bottles of shampoo, hand sanitizer, and baby formula contraband. But new liquid scanners that use magnetic fields to classify containers’ contents as safe or hazardous—like this one at the Berlin-Schönefeld Airport—may allow travelers to bring their favorite beverages on board.

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