A giant metal shield designed to contain radioactive waste at Chernobyl's damaged nuclear reactor is being moved into place.
Tagged With engineering
Video: Tall buildings often have tuned mass dampers hidden inside their structures to stabilise them against the wind. Those tuned mass dampers are huge and heavy and help limit a building's movement by swaying in the opposite direction of the building. That is, if the wind is making a skyscraper sway to the right, the damper will sway to the left to dissipate the kinetic energy, and reduce the, um, swaying. What's interesting is that the Burj Khalifa, the world's tallest building, doesn't have that.
When you rip clothing, you either have to go and get it repaired, repair it yourself or sigh heavily and toss it out. You're lucky if you have the tools necessary to repair torn fabrics, or just have all the money in the world to pay someone else to fix it for you, but what if you could skip all that?
Video: Behold the majestic Banja Dam in Albania. It's a huge hydroelectric project that hit a big milestone last weekend — its reservoir reached over 550m above sea level. To release some of the excess water, dam operators opened the spillway for the very first time and filmed the event from the air. The dang thing just keeps. On. Going.
Watchmakers are always striving to add more features to their timepieces, but it's the most simple and obvious feature — accurately keeping the time — that's the holy grail of horology. And now you can 3D-print a tourbillon, a complex device that improves a watch's accuracy, and marvel at its mechanics.
Last year, US footballer Chris Borland of the San Francisco 49ers announced that he was quitting football because of the high risk of concussion and long-term brain damage, despite protective helmets. And he's not alone: It's a growing concern, particularly for teenage athletes. But a new collar inspired by the humble woodpecker may help protect athletes from such trauma in the future.
Video: If you opt for the convenience of disposable nappies over their more environmentally-friendly cloth alternatives, you probably don't stop to think about the science that allows them to keep your baby dry at night. But engineerguy Bill Hammack has, and in a new video, he explains why you're actually wrapping your baby's butt in a brilliant piece of engineering.
There's a annoying theoretical limit on the efficiency of solar cells that limits the amount of electricity they can create from sunlight. But now a team of MIT engineers has developed a system that overcomes the problem by first converting light to heat — and it could double the efficiency of solar cells.