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“Lemon Battery” webcam

Alan Languirand has something called Project Lemon Battery set up at Maker Faire Detroit. It’s a solar-powered, 3G-connected webcam on a pole that takes pics every ten seconds and uploads them to a webpage. Project Lemon Battery is part of a larger initiative Alan is involved in to sell “micro real estate” in Detroit to […]

How-To: Levitate a pencil lead

Prolific, anonymous YouTube DIY science guru NurdRage, who in the past has brought us instructions for synthesizing trichlorophenyl oxalate (TCPO) and instructions for using it to make homemade glowstickx, presents this cool video and corresponding Instructable showing how to demonstrate diamagnetic levitation using common pencil lead instead of the usual (and expensive) pyrolytic graphite.

How-To: Simple shuffling bot

How-To: Simple shuffling bot

Randy Sarafan just made another simple moving bot, this time with four legs for walking: My goal with Walker Bot was to make a 4-legged walking bot that could be made in ten minutes. This bot ultimately took me three hours to make. That said, my goal wasn’t to make one in ten minutes, but […]