A Mayonnaise Jar on Stilts

Two of the five squads of marines left their places on the perimeter of the landing zone and headed to the “decorated” containers. One by one, the containers cracked open, small clouds of fog drifting out of them and pooling in the low areas on the ground. The fog was the remains of the shock foam that researchers in Lab City had developed to allow for higher-speed impacts in yeet pods or cargo launched from mass drivers.

The beauty of it was that it was a completely analog system; mechanical altimeters would detect when the pod or cargo container reached a set point—usually a hundred meters before impact—and trigger a valve that would allow two binary agents to mix. The resulting chemical formed a foam that expanded, bursting the relatively fragile containment tanks it was mixed in and allowing it to expand to fill whatever space it was in. It had a ridiculously high shock tolerance and would rapidly decay and sublimate into a gas composed primarily of nitrogen, helium, sulfur hexaf