Ah, the stately hot air balloon. Not really useful for all that much except for having a grand old time floating around the skies, it's still a marvel of simple physics. Fill a giant balloon with air.

Everyone loves clouds. Although they are gigantic and beyond our reach, they inspire us with their wide variety of shapes. I mean, who hasn't played the game of guessing what a cloud looks like? Of ...

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.

Here is another one of those great questions that promotes epic "office discussions". (this one sent in by Russ) "An Olympic-sized swimming pool is filled with 660,000 US gallons of water. An ...

Horizontal convection describes fluid motion driven by differential heating along a horizontal boundary, whereby variations in buoyancy generate circulation. Recent theoretical, computational and ...

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 ...

Going bottom-up is no problem for a boat on the underside of a levitated liquid. In a container, liquid can be levitated over a layer of gas by shaking the container up and down because the repeated, ...

Students prepare a diving tank and a submarine and make the submarine neutrally buoyant in the tank. Submarines are important to military operations and to undersea exploration because they can ...