Topic: engineering

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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...

Cassie, Agility Robotics’ ostrichlike bipedal robot

Untethered, battery-powered, and able to traverse a variety of terrains, these remote-controlled bipedal robots are designed for everything from search-and-rescue situations, to telepresence, to grocery delivery. They...

Can this super long logging truck turn and cross this tiny bridge?

How can a really long truck carrying more than two dozen really long logs turn right from a small road to cross a really tiny bridge in the mountains of France? Watch as this truck driver demonstrates how it's done.

A LEGO lawn mower man endlessly cuts the grass

A LEGO man mows his LEGO lawn, endlessly pushing a LEGO lawn mower. This kinetic sculpture was created by Jason Allemann, aka JK Brickworks, and can be powered by hand crank or motor. The illusion of grass-cutting...

Unconventional Domino Tricks by Hevesh5 & Kaplamino

The complex timing and physics mechanisms used within these Unconventional Domino Tricks, a collaboration between domino artist Hevesh5 and chain reaction YouTuber Kaplamino, are really surprising. Hevesh5 explains: ...

Hand cranked mechanical singing birds by Bliss Kolb

This hand-cranked mechanical bird sings from a small leather bellows that whistles in two notes. A cam presses a lever that changes the pitch while other cams pull on strings that animate the bird's six movements as i...

Most Satisfying Video of Pop-Up Cards designed by Peter Dahmen

Germany-based paper engineer Peter Dahmen designs and builds intricate paper structures and pop-up cards. Titled Most Satisfying Video of Pop-Up Cards, the video above showcases how Dahmen's personal and commercial wo...

This Book is a Planetarium by Kelli Anderson

How can a book illuminate constellations, play music, and create spirograph drawings? This stop-motion promo video for the pop-up book This Book is a Planetarium demonstrates how... and introduces a few scientific con...

Janet Echelman’s fiber sculptures billow among city buildings

Janet Echelman’s fiber sculptures billow, rise, and fall like iridescent bubbles hanging from a spider's web. Flexible and full of motion, the nets look soft, but they're also strong. Their structural cables are made ...

How I made a lil “Wacky Waving Inflatable Arm Flailing Tube Man”

It's fun to see those attention-getting inflatable tube men that are wildly waving their arms in front of stores, car dealers, and even as scarecrows in farm fields. How fun would it be to have one dancing on your des...

The Kresling-Pattern and our origami world

Biruta Kresling is a Paris-based architect and independant researcher on folded structures—specifically how nature folds and unfolds tree leaves, tortoise shell bamboo, turbinate mollusk shells, the air sac of the h...

A glow-in-the-dark bug puppet by Barnaby Dixon

Puppeteer Barnaby Dixon designs puppets that move with a combination of his practiced finger work and the puppet's internal mechanisms. They can pick things up, scratch their heads, dance, tumble, fly, and more. This ...

Simplified blower and furnace experiments – Primitive Technology

In an attempt to streamline his previous blower and furnace design, and to make it easier to replicate, Primitive Technology builds a simplified blower from sticks, rope and mud. He then tests it with three charcoal-f...

Wooden domino row building machine

I first built a domino row building machine of this type in 1985 out of Lego, then built it again from memory in 2009 to make a video of it. The machine works by pushing a magazine full of dominoes forward along the t...

Beavers: The Smartest Thing in Fur Pants

Beavers have done more to shape North American landscapes than any animal beside humans. We don’t notice them much today because there aren’t many left, but before colonization, North America was home to hundreds of m...

Three Gears are Possible

If you've ever seen an image of three gears all interlocking or an odd number of interconnecting gears, like those gears on some British two pound (£2) coins, you've seen a gear configuration that does not work. Howev...

Haruki Nakamura’s surprising paper karakuri animals

Japanese paper crafter Haruki Nakamura designs mechanical paper karakuri-style animals that peek and pop in surprising ways. Karakuri, meaning 'trick' or 'mechanism', are mechanical automata pieces that were first mad...


 
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