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Buy and sell electronics, cars, clothing, apparel, collectibles, sporting goods, digital cameras, and everything else on eBay, the world

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.

YouTube is a place to discover, watch, upload and share videos.

RMCybernetics supplies information and products for scientific education and research. The range of products includes all sorts of science gadgets such as electrostatic lightning machines and electronic power pulse generators. There is also a wide se...

Build a highly efficient jet engine from a turbocharger - some design principles are from the inventor of the world

Popular Mechanics is a service magazine covering a variety of information on home improvement, automotive needs, electronics, computers, telecommunications, outdoors, fitness and science and technology. Popular Mechanics also features product evaluat...

wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual. Our multilingual how to manual has free step-by-step instructions on how to do all types of things.

A Real Working Jet Engine Built From Junkyard Parts

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HubPages is your online space to share your advice, reviews, useful tips, opinions and insights with hundreds of other authors. HubPages is completely free, and you can even earn online ad revenue!