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.

Have you ever wondered how massive ships, weighing thousands of tons, stay afloat on water instead of sinking? The answer lies in a scientific principle called buoyancy, discovered by the ancient ...

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 ...

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 ...

Welcome aboard the Harmony of the Seas, one of the largest cruise ships in the world! She’s nearly 1200 feet long, and weighs as much as 17,000 African elephants, which kind of makes you wonder: How ...

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% ...

I haven't seen the Pixar Movie "Up" yet, so don't spoil it for me. I have, however, seen the trailer. In my usual fashion, I have to find something to complain about. There is this scene where the old ...