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How to refill a "disposable" Brita brand water pitcher filter with activated carbon.
Assembling the Really Bare Bones Board (RBBB) Arduino clone - UPDATED
Bring Dead Ni-Cad Batteries Back To Life
Sparky - DIY Web-Based Telepresence Robot
HDDJ: Turning an old hard disk drive into a rotary input device
iRecoil - iPhone Retractable Headphones
Grow Your Own Bioluminescent Algae
LED matrix using shift registers
Go Online without Getting Snooped: Tor (The Onion Router)
Growing Your Own Miracle Fruit - Synsepalum dulcificum
Back projection 56 inch multitouch television.
Cheap Improved LCD Overhead Projector
Mechanical Dry Erase Board
Super Nightvision Headset Hack!
Science Fair - Articulated Hand < $20
Rebuild a bicycle rear hub
The Chaos Machine (Double Pendulum)
ServerBot - for serving food and drinks
Cordless drill - Improving the battery
12 Volt Battery Hack! You'll be Surprised...
How to make Evil Childproof caps easy to open
Easy to Build Desk Top 3 Axis CNC Milling Machine