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Topic: steel
Dressing in late 14th century armor
A video showing how to dress in and wear armor (harness) from late 14th century. The harness is a detailed reconstruction based on the effigy of the Black Prince (1330-1376) in the Canterbury Cathedral, other relevant...
Steel track rolling ball sculptures by kinetic artist Tom Harold
With thin rails of hand-bent and welded stainless steel, kinetic artist Tom Harold creates intricate marble tracks full of twists, turns, hinges, and swirls. Titled 'Tomfoolery,' the piece above was specially made for...
How are pencil sharpeners made?
Each part of a small 'prism' or 'pocket' pencil sharpener is cut, shaped, stamped, baked, bathed, polished, and assembled with such specifically made machinery, traveling through feeds and funnels along the way. See h...
Making Artificial Earthquakes with a Four-Tonne Steel Ball
In Göttingen, Germany, there's a four-tonne steel ball that can be raised up a 14-metre tower -- and then dropped in less than two seconds, crashing back to earth. It makes tiny, artificial earthquakes. Tom Scott v...
Why does a frozen lake sound like a Star Wars blaster?
Ice can make all sorts of sounds: cracking, crackling, musical booooooms... and that pew! pew! Star Wars blaster sound. How? In this episode of NPR's Skunk Bear, we learn about acoustic dispersion and how the phenomen...
The Waterphone
Invented by Richard Waters in the late 1960s, the waterphone is an unusual instrument that often contains a bit of water to help create its signature sound. Used in a variety of movies and albums, the instrument is of...
Dismantling the San Francisco–Oakland Bay Bridge
Weighing more than 25 tons each, the five 504 foot (153.6 meter) long trusses of the San Francisco–Oakland Bay Bridge's eastern span have each been dismantled and lowered onto a barge that takes them away for further ...
Marble Mountain, a huge themed marble machine in progress
Ben Tardif is building a huge marble machine made from 25 themed and soon-to-be-themed sections -- a roller coaster, ski jump, Times Square, Lombard Street, and a fairy tale castle are just a few examples -- that bolt...
I Beam – Sesame Street
A red hot steel I-beam is molded at the factory, moving back and forth within the machines as it takes shape in the form of the letter I. This classic Sesame Street clip was first seen in 1980 during the show's 12th s...
The Wintergatan Marble Machine, music made from 2,000 marbles
Multiple instruments are interlaced within this 3,000 part, hand-crafted invention by Swedish musician Martin Molin. With continuous cranking, lever flips, and other machine tweaks, his original composition comes to l...
Sculpting the Wind: Anthony Howe’s Kinetic Sculptures
Filmed in Orcas Island, Washington, sculptor Anthony Howe discusses the inspiration and work behind his wind-powered, stainless steel kinetic sculptures with Great Big Story: Sculpting the Wind. More from Howe's site:...
Murmuration Chandelier
Inspired by the twisting, turning phenomenon of starling flocks, called a murmuration, this is Murmuration Chandelier, a kinetic sculpture by designers Richard Harvey and Keivor John: When you look at a murmuration...
Plastic Injection Molding
Bill [Hammack] details the key engineering principles underlying plastic injection molding. He describes its history and then reveals the intricate details of the process. He shows viewers where to found, on any injec...
A Rube Goldberg-style Egg Breaker machine
Enjoy some delightful music as yolks travel unbroken through the little metal slides! We love watching food machines and Rube Goldberg machines. This demonstration video for the Egg Breaker from OVO-TECH mixes the two...
Why do autumn leaves cause train delays? – Liz Bonnin
Why do 'leaves on the line' cause train delays, especially in autumn? The serious danger comes from a series of physics challenges: Leaves are sucked onto the tracks by the fast moving trains. The train wheels crush t...
Beam Drop Inhotim, 2008, Brazil – Chris Burden
A large space in the dirt is cleared, a pit is dug and filled with wet concrete, and a huge crane lifts and drops 100 locally sourced steel I-beams into the pit. This is the work of late American artist Chris Burden f...
How to replace railway ties without pulling up the rails
Railroad tracks are made of three main parts: the long steel rails that the trains run on, wooden or concrete railroad ties (US) or sleepers (UK), and the track ballast that helps bear a train's weight and keeps the t...
Anthony Howe’s kinetic sculptures in Barneys holiday windows
When department store windows get "dressed up" during the holidays, it's always a treat. In big cities like Paris, London, and New York City, there's usually the added promise of seeing high-profile artists, engineers...
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