From: Magenn Power Inc
Here’s another thing that follows the same general idea as the Flying power from last week. This time they are using lighter then air helium to raise the blimp to over 330 meters above the ground. Like the other ones, it transfers its power to the ground via cables (come on science, invent wireless electricity already). However this one looks to be more stable in the air, considering it’s a blimp, and not a helicopter Detail... (Technology not D.I.Y)
Saturday, 8 September 2007
From: Magenn Power Inc
Labels: Wind Power
Monday, 3 September 2007
By Joe Radabaugh From http://www.backwoodshome.com/articles/radabaugh30.html
It was during those days that I saw my first solar cooker and began the hobby that led to the cooker described in this article. I started out building the most efficient styles I could come up with. Later, while keeping this efficiency, I strove to simplify the building process, the materials needed, and the actual use of the cooker. The cooker is now basically cardboard, aluminum foil, and glass. Yet, because of the design, it is remarkably efficient and durable.
It looks so simple now, but you should realize that this simplicity took years of effort and many accidental breakthroughs. The testing for this cooker is now complete.
What I have included here is a very good starter model that can lead you and your family to a lifetime of enjoyment without threatening your pocketbook. A solar cooker can easily be built for under $10. Detail...
Friday, 31 August 2007
by Graydon Blair from Utah Biodiesel Supply
Biodiesel is made by chemically altering an organic oil (typically vegetable oil) through a process called "transesterification". Essentially, the process thins down the oil to allow it to run in an unmodified diesel engine. Detail...
Wednesday, 29 August 2007
by Teong H. Tan Link...
DATS cooker employs 24 small reflective panels to concentrate extra sunlight to compensate for the heat loss from not using a plastic bag. DATS cooker design is similar to a deep-focus parabolic cooker, but instead of using a true parabolic curve, multiple flat panels concentrate sunlight onto the cooking pot. Two reflective surface-angles, 45º and 60º, are used so that a bend can be introduced in between for structural rigidity to hold the cooker’s shape. This structural rigidity allows for DATS cooker to be constructed out of cardboard material.
A DATS cooker, tested in Shanghai, reached a maximum temperature of 140ºC (284ºF) inside an empty black cooking pot, on a clear sunny day with 21ºC (70ºF) ambient air temperature and a slight breeze. Eggs became hard-boiled in 30 minutes and two cups of rice cooked in 95 minutes. The cooker should be re-positioned every 45 minutes or less for better efficiency. Detail...
Tuesday, 28 August 2007
From Instructables.com Source The Sietch
This project will create a DIY solar hot water heater for less than five dollars (if you have access to a garbage dump). It will allow you to see the principles of solar water heating in action, and is highly customizable.
Its a great way to learn about using the renewable energy of the sun to produce useful effects, in this case hot water. You can use these instructions to build a device that will actually heat enough water to use in the home, but it would require modifications. Detail...