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Winners
Bio Gas Generator. (Small)
Teen Romance Card Party
Wind Turbine/s For Free! (Small 8"inch Blades)
Playing with Chemicals
A Nothing
Turn a Penny Gold
How To Make Camera Taser
Bring Dead Lead Acid Battery to Live Again
TESLA FREE ENERGY GENERATOR (COLLECTOR)
Heater: Save Money/ Furnace Issue/ Yearly Cleaning
How to Build a CD Hovercraft
Pond Heater
Concentrated Photovoltaics with a Power Transistor
Biogas at Home- Cheap and Easy
Calentador solar casero - Fabricar calentador solar casero de circulación forzada
My "NEW" Solar Setup
Recycle Old Mobile Phone Batteries into a small powerpack.
Tornado
Preparation for a Volcano Eruption
Magnet Pendulum
Rubberband powerd motor
How to Make an Electroscope Easily
Arduino based House Heater Controler with SMS User Interface
Make your garage energy efficient. Easy install of radiant barrier insulation to garage doors.
Portable Power
Sawdust Fire starters
Wind Mill (vertical axis wind turbine)
Magnet
Battery out of coins and foil
Electrolysis Without Batteries
Variable Portable Power Supply
ВatteЯЧ conversion another one!
build a tesla coil(medium size) EXPLAINED
Hydro Power at Home
Ballistic Pencil
Make a Soda Can Battey
Build a Coin Battery-version Two
build a coin battery
Solar furnace made with crisps bags. Solar cooking.
Turbine with a hairdryer motor
Compressed Air Battery
Buzzer
How to make a Homopolar motor
50 Watt Generator From A Simple Motor ( Alternator)
Our "Hot Box" Solar Collector
Solar Cooling System For Helmets
Internet Enabled Solar Tracker
ChargeDroid
Water Wheel
Power Tower (plans) - electricity generation from solar, wind and water in one device
All-in-One Solar Home Entertainment
Free professional wind turbine blade
Bike Generator Patio Furniture Made from Recycled Materials w/ Voltage Regulated Battery Charging System
Darrieus Wind Turbine
Sycamore Green Wind Turbine
Recycle Handwarmer / Heater Incl. Autodesk Inventor image
Dandelion Wind turbine
Turbine Test 2
Testing
Bearing Casing
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