The Plus Four Wristlet Route Indicator, a British product from the 1920s, is a scroll-map navigator in the shape of a watch. It came with tiny interchangeable instructions that you scrolled manually to see which roads to take when driving. pic.twitter.com/HoZvLjrxbU
Simplified animation of a 5-speed Manual transmission: 🟢input shaft, connected to the motor via the Clutch 🔴 Layshaft 🔘 output shaft 🔵 constant-mesh wheels of the gears 1, 2, 3 and 5 🟠 reverse [source: https://t.co/nntSK6saAg] pic.twitter.com/xm53a20zpm
