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Make wireless charging mouse
Low-Power Wireless Charging
Wi-Tricity (Wireless Electricity)
Making Light from Magnetism: Electromagnetic Induction & the Bedini Machine
Simple Wireless Power
Joule Thief LED Night Light
Water Powered Flashlight
Increase Your Renewable Engery Output
Dual Stator Smart Drive Wind Turbine (Tutorial)
How to Build a Wind Power Generator
Poor-Mans Smart-Grid - Blackout Protection by UPS and Electric Motorcycle
Compact, Cheap, and Expandable Hydroponics System
Small NFT Hydroponics System
Simple DIY Hydroponics net pot/basket from recycled bottles
Dry Cell Electrolyser
DIY HHO Torch (Water Torch) for only $4
A Home-Built Biomass Gasifier for Producing Wood Gas
Solar Electrolytic Cell
How to Convert Water into Fuel by Building a DIY Oxyhydrogen Generator
HHO car adaptation
Hydroxy Gas Generator
Increase battery life for electronics
Fusion Jr. Home Energy Reactor
A watering controller that can be home networked
Free energy generators
Separate Hydrogen and Oxygen from Water Through Electrolysis
Make Hydrogen From Water And Household Parts
The Basics Of A Hydrogen Dry-Cell
$4 Solar Battery Charger
Hoffman Apparatus for pure hydrogen gas
Hydroponic Food Factory
Tesla turbine from old hard drives and minimal tools
Make Your Own Biodiesel Processor
A radial drill press made from spare parts
Kill household ants - Super cheaply
Double-Decker Drum Composter
Safe Video Demonstration Sodium and Potassium Exploding In Water
Amaze A Science Class with Elephant Toothpaste
How to Demonstrate Bond Energy
Demonstrating Nitric Acid Acts Upon A Copper Penny Experiment
Missile Technology on the Cheap.
AA fuel cell
Collecting Hydrogen and Oxygen
Experimenting: Yeast, Hydrogen peroxide chemical reaction (fire)
Making Electricity in your hand
WinXP Overhaul Guide: How to make it look like Vista, run like lightning, and stay productive, fast & smooth
Convert a Halogen Worklamp into Flourescent for $5 and 20 minutes
Build a 15,000 rpm Tesla Turbine using hard drive platters
Home-made Sun Jar (BFG dream jar)
Estimating thermal performance of a solar-thermal system
Giant Fresnel Lens Deathray: An Experiment in Optics
The Stirling Engine, absorb energy from candles, coffee, and more!
Water Cooling a PC
A simple power supply.
Small-scale benchtop power supply
Convert an ATX Power Supply Into a Regular DC Power Supply!
5V breadboard mini PSU
Breadboards for Beginners
The Radioshack, Adjustable, Breadboard Power Supply.
How to Build a Bench-Top Power Supply
Make hobbyist PCBs with professional CAD tools by modifying "Design Rules"
Setup QCad Professional.
Build an Amazing Tesla CD Turbine
Simple Component and Continuity Tester
DIY 1000 watt wind turbine
How to build a rain water collector
Run Your Car on Hydrogen from Aluminum Soda Cans and Lye
The S45-SMS Alarming System
Solar parabolic cooker with the mechanical mathematician!
Solar Thermal Water Heater For Less Than Five Dollars
Re-surfacing CDs so they work again.
How to make Hydrogen
Soda Can Hydrogen Generator for Alternative Energy
$30 Historical Temperature Sensor System using PC,1-wire, Perl, MRTG
Temperature sensor / weatherstation