Open Works: How Things Work

Open Works is a book of machines you can play with. Every page is a precise drawing of a real mechanism that actually works. Slide the control and the lock's pins line up, the clock's escapement ticks, the engine's pistons fire. Then take it apart: every part is numbered and explained, with the clever idea that makes it work. • 471 interactive machines, from zips and pressure cookers to vault time locks, jet engines and minute repeaters • Real numbers: forces, speeds and tolerances worked out from each machine's geometry • "In simple words" explanations for every machine, step by step • Organised by the big ideas: levers, gears, pressure, heat, electricity, light and more • A machine to discover every day, with a streak to keep you going • Machine of the day widget for your Home Screen • Make a wallpaper from any machine • Six themes, including Blueprint and Glass • Works completely offline. No account, no ads, no tracking Six machines are free to explore. Open Works Full unlocks the whole book, the daily widget and every new machine as it's added. Try it free for a week, then choose yearly or pay once for life. Open Works Full yearly renews automatically each year unless cancelled at least 24 hours before the end of the period; manage it in Settings › your name › Subscriptions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/