Editor's Note: Julian Hunt, the lead researcher on this study, has contacted us to say the figures quoted in the original press release, as well as the research paper and subsequently this piece, are ...

make an object neutrally buoyant in water. understand buoyancy forces. Submarines are important to military operations and to undersea exploration because they can function entirely underwater.

NORFOLK, Va. — Spongebob, Mickey Mouse and of course Snoopy. They're all staples of the Macy's Thanksgiving Day Parade! This annual tradition mixes art, music, and science for millions of viewers.

The Cartesian Diver: this is a classic demo named after the17 th-century philosopher and mathematician René Descartes. Buoyancy is the force that decides whether an object will sink or float, and has ...

Schematic illustration of the (a) upward buoyancy force on a rising air parcel expected from its lower density (neglecting air motions), if it rises without mixing (blue line), with mixing in a 100% ...

A hollow plastic sphere is held below the surface of a fresh water lake by a cable anchored to the bottom of the lake. The sphere has a volume of 0.300 cubic meter, and the tension on the cable is 900 ...