3-tier controllable speed, body lights, obstacle sensor, and more.
Smoke grenade diy
Inventor Colin Furze (pictured) has created a working hoverbike that lets him speed along in mid-air with the help of two impressive fans. The inventor came up with the idea based on the suggestions of thousands of viewers who asked for him to create some sort of flying machine
perpetual motion - Google Search
MAKE Projects: Stirling Engine (PDF)
If your looking for a neat DIY project this weekend then this DIY 9V Battery USB charger could be a fun gadgets to create. With only using a few components : a 9V battery, female USB port from an old PC and a small 5v regulator
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