Cheap Autonomous Robot Drift Car

The fine folks over at Make put together a cheap ultrasonic controlled robot drift car

H2 R/C Car Powered By Soda Cans (Video)

Some Spanish engineers have come up with a radio controlled car that is powered by soda can tabs. The dAlH2Orean H2 R/C Car is powered by aluminium. The tabs off soda cans are placed in the reaction chamber along with some sodium hydroxide. The reaction produces hydrogen which runs the car for …

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Made Simple: How Differential Gears Work

How Differential Gears work — Simple tutorial that take the mystery out of what is enclosed in your cars axles.