Topic: gravity

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Nowhere and Everywhere at the Same Time, No. 2

Swinging plumb bobs hang in a gridded formation across a large room as visitors attempt to walk among them without making contact. The installation, Nowhere and Everywhere at the Same Time, No. 2 by William Forsythe, ...

Liquid Sand Hot Tub: Making a giant fluidized bed of sand

When air is pumped through sand in just the right way, the sand begins to behave a lot like a fluid. As air escapes between the sand particles, items placed in the sand will begin to float. Others will sink. And when ...

A microgravity demo in the Willis Tower Skydeck elevator

The next time you ride an elevator down 103 floors, take a scale with you, because you might want to try this microgravity experiment: In collaboration with Willis Tower, Kevin from the Museum of Science and Industry,...

The mighty mathematics of the lever

Archimedes once said “Give me a place to stand, and I shall move the Earth.” While the idea of a person moving such a huge mass on their own might sound impossible, chances are you’ve seen this idea in action at your ...

A ramp and pulley marble machine game

This simple marble machine game made from ramps and a pulley system moves marbles from the bottom of the course to the top, circulating them over and over again. The kid playing the game is able to keep the three marb...

La mécanique de l’Histoire, an acrobatic performance by Yoann Bourgeois

A trampoline sits at the center of a turning wooden staircase. Four figures climb, fall, and somehow float back into their places on the stairs as if in slow motion. They climb again until only one figure is left to d...

Ridiculous Tricks You Can Do With a Slinky

They walk downstairs alone or in pairs and makes a slinkity sound... but there's a lot more you can do with a slinky, the famous helical spring invented in the 1940s. In this video featuring 黃正懷, Kuma Films capture...

EYES, a series of playful kinetic installations

Look left, look right, and get googly. EYES is a series of playful kinetic installations by Helsinki-based director, designer, and animator Lucas Zanotto. Watch as balls swing, leak, float, fly, and bobble about, maki...

Unendurable line – Design Ah!

Consider this line and its corresponding chorus as they graph and reflect the variables of different objects. It's a visual and aural experiment that can be created for anything... toast in the toaster, the wind in th...

How to build a balancing bridge out of coins without glue

Build a bridge of coins that can balance off the side of a table without glue. This video from The Q demonstrates the stacking process with around 200 coins. Can you make something similar with fewer coins, or somethi...

J is for Joule – Circuit Playground

Learn all about work (as defined by physics) and the Joule, a unit of energy measurement, with Adabot and English physicist James Prescott Joule (1818-1889). A summary from Universe Today: An apple is a favorite e...

How many nails can you balance on the head of one nail?

One large nail is securely nailed into a piece of wood. A handful of identical nails are laying on the table. How many of those loose nails can you balance on the head of that first nail? Try it, then watch knife ...

How to make Leonardo da Vinci’s self-supporting bridge

With a series of wooden poles and beams, "Stick-Boy" shows his Dad how to build Leonardo da Vinci's self-supporting arch bridge, also known as the emergency bridge. No nails, screws, rope, glues, notches, or other fas...

The Glass Ribbon Machine

In 1879, Thomas Edison and his research team developed a durable carbon-filament light bulb. In the 1880s and 90s, when glass had to be blown by hand, the skilled Corning glassblowers that Edison hired could produce t...

Clearing snow from the cables on the Port Mann Bridge

The Port Mann Bridge is one of the largest cable stay suspension bridges in the world. To keep traffic flowing during winter storms, teams of Rope Access Technicians hang high over traffic to operate the bridge's snow...

Scott Weaver’s ‘Rolling through the Bay’ toothpick sculpture

This nine foot tall wooden sculpture of San Francisco was made with glue and 105,387 and a half toothpicks. It was built by Scott Weaver who, stuck at home at the age of 14 with spinal meningitis, started working in e...

(Skate)ology & The Science of Skateboarding: Grinding

Kick flips, nose grinds, backside board slides... (Skate)ology! Examine gravity, friction, momentum, and other physics concepts thanks to skateboarding demos by pro skaters Boo Johnson, Dane Vaughn, Marquise Henry, Ri...

Slingshots of the Oceanic

There are many ways of moving through the Universe – of traveling from one point to another over great, even extraordinary distances. There is also a way of using the world for your own ends: taking advantage of slope...

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