A British how-it’s-made time lapse from Bombardier Rail Vehicles Production in Derby: Watch a new Elizabeth line ‘Class 345’ train being built, complete with 5 miles of welding and 50 miles of cabling. From TFL.gov.uk:A fleet of 66 new 200 metre long trains built in the United Kingdom will run on the Elizabeth line, featuring nine walk-through carriages, air conditioning,…… Continue reading Time Lapse of Building a Class 345 railcar for the Elizabeth line
Tag: engineering
How a Retractable Ballpoint Pen Works – Bill Hammack
Click. Click. The two clicks that you hear when pressing the top button on a retractable ballpoint ‘click pen’ are a key to understanding the mechanics happening inside of it: A rotation, extension, and lock of the spring-loaded ink cartridge, pushing the ballpoint tip into place outside of the casing. The two clicks that follow, the sound of pressing…… Continue reading How a Retractable Ballpoint Pen Works – Bill Hammack
Plastic Injection Molding – Bill Hammack
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 injection-molding product, the markings created by injection molding. He closes with a description of the one of the finest examples of the injection molding:…… Continue reading Plastic Injection Molding – Bill Hammack
Why do Autumn Leaves Cause Train Delays?
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 them into a slimy black pulp, releasing leaf oils that lessen friction. Mixed with rain, this super thin…… Continue reading Why do Autumn Leaves Cause Train Delays?
Modernizing the New York City Subway
“People know that the system is old, but I don’t think they realize just how old it is… in our system, it’s not just the architecture that’s 100 years old. It’s a lot of the basic technology, as well. The infrastructure is old.”From the MTA in New York City, this is CBTC: Communications-Based Train Control, an astounding behind-the-scenes video…… Continue reading Modernizing the New York City Subway
Trilo Bytes 