In the future, rehydrating on the go might not mean chugging from a bottle, but inhaling a gelatinous, edible blob that looks like water floating on the space station.
That's the messed-up vision of the folks at London's Skipping Rocks Lab, anyway. They've devised a method for home cooks to whip up servings of water encased in algae-based gel. People consume the squishy balls by biting them and sucking out the liquid or—if they have great gag reflexes—swallowing them like oysters. (Better have a friend who knows the Heimlich present.)
