HOW IT WORKS | High-Powered Jet Ski, Canal Lift Lock, Traffic Lights and More | Free Documentary
发布时间 2021-08-27 13:00:03 来源
摘要
How Machines Work - Episode 2 | Science & Engineering Documentary
How Machines Work - Episode 1 - Coal Fired Power Plant, Mega Rollercoaster and More: https://youtu.be/iBrV_7LYBxc
00:00 Rally Car, Town Hall Clock, Canal Lift Lock, Printing Press
It may look like an off-the-lot stock car, but the rally car is rebuild from the ground up, inside out to make a nearly indestructible race car. If you ever wonder what makes a mechanical clock ‘tick’, take a cue from a giant. This 11-storey German clock tower in Munich is a bit like your grandfather clock at home – gears, pendulum, clock face. Only bigger. Ships depend on canals and lift locks to get them between navigable waterways. This one is an elevator that lifts a dozen boats at a time on no electricity, no fuel, just a hydraulic system that run on river water. At a century old, it’s an original green machine. A major city newspaper needs to get a million copies out by morning. It depends on low cost, high speed, high volume printing to make its deadlines. The Web offset printer delivers 80 pages a second, 500 folded newspapers a minute – all without a smear.
24:17 Super Ferris wheel ‘London Eye’, A high-powered jet ski, Hoover Dam, the Traffic light
In a city shy of skyscrapers, super-ferris wheel London Eye rises 40 stories above the Thames. 800 riders in 32 lounge-sized pods hang of its rim. So finely balanced, the machine never stops while loading and unloading passengers. The high-powered Samba is a jet ski prototype with a redesigned hull profile that races over the water. It also responds to the low-slung rider’s body moves, spinning a full one-eighty at an almost standstill Hoover Dam is a giant machine that uses water pressure to drive turbines that produce electricity - simple in theory. But in practice, the real work is holding back a raging river to create enough water pressure at bone-crushing depths. The traffic light is the visible end of a machine-like, coordinated web designed to keep urban people and traffic in synchronized motion. The modern intersection actually reads traffic patterns, and adjusts its signals in real time.
How Machines Work: A detailed, entertaining and “wow-fact” half-hour on how machines work. From the everyday escalator, power plant, and printing press, to the unusual spy drone, machine gun, tattoo machine, and the fun stuff: jet ski, carousel, rally car.
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