{"product_id":"how-machines-work-the-interactive-guide-to-simple-machines-and-mechanisms-9780762443154","title":"How Machines Work: The Interactive Guide to Simple Machines and Mechanisms","description":"\u003cp\u003eEvery child in school learns about simple and common machines such as inclined planes and pulleys  but rarely do they have the opportunity to build the machines themselves. In this colorful  interactive book and kit  the principles for 12 basic machines are described  supplemented by descriptions of everyday usefulness  timelines detailing their history  and instructions to build each machine solely with materials included in the kit. Everything that a budding inventor needs to build each of the machines is provided  including 25 machine pieces  10 plastic nuts and bolts  and a detachable peg boardall color-coded for easy identification. Using the simple and direct instructions  kids can build each machine in minutes! The projects include: incline planes  levers  wheels and axles  gears (spur  compound  rack and pinion  and planetary)  cams  cranks  pulleys  ratchets  and springs. Hands-on  interactive  and engaging  this kit will bring out the DIY and inventor spirit in every child.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":67932849733685,"sku":"ByrdShop_0762443154","price":248.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8139\/0901\/files\/9780762443154.jpg?v=1794232365","url":"https:\/\/atxbooks.com\/products\/how-machines-work-the-interactive-guide-to-simple-machines-and-mechanisms-9780762443154","provider":"ATX Books","version":"1.0","type":"link"}