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WHICH LIGHT BULBS ARE THE BEST FOR THE ENVIRONMENT THE NORMAL ONES OR THE ENERGY SAVING LIGHT BULBS.?
Mar 2nd
Question by hokomoley:
Which light bulbs are the ideal for the environment the normal ones or the energy saving light bulbs.?
I was wondering like which ones produce more mercury and which ones use too much energy to produce. Please let me know.
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Q&A: HOW CAN I CHANGE THE ANGLE OF BLADES ON A WIND TURBINE?
Mar 1st
Question by jake t:
How can i change the angle of blades on a wind turbine?
im doing an experiment with wind turbines. I am using a treadmill motor and the flywheel to attach the blades. To test different angles, do i make different blades, or adjust something with the flywheel?? please help!!
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CAN SOMEONE HELP ME UNDERSTAND THIS STATEMENT ABOUT SOLAR ENERGY?
Mar 1st
Question by Da Vinci Herself:
Can someone help me comprehend this statement about Solar Energy?
So I am reading this article on Wikipedia about Solar Energy. I have to do this project about biofuels, and solar energy is one of them. It says:
“Solar technologies are broadly characterized as either passive or active depending on the way they capture, convert and distribute sunlight. Active solar techniques use photovoltaic panels, pumps, and fans to convert sunlight into useful outputs. Passive solar techniques include selecting materials with favorable thermal properties, designing spaces that naturally circulate air, and referencing the position of a building to the Sun. Active solar technologies increase the supply of energy and are considered supply side technologies, while passive solar technologies reduce the need for alternate resources and are generally considered demand side technologies.”
I do not comprehend what they mean. Do active thinger-majiggers move toward the sun, and passive ones just sit there and absorb the sunlight?
http://en.wikipedia.org/wiki/Solar_energy#Energy_from_the_Sun
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WHY DOES ENERGY SAVING LIGHT BUBS LAST LONGER THAN A REGULAR LIGHT BUB?
Feb 29th
Question by Jeffery W:
Why does energy saving light bubs last longer than a regular light bub?
I am doing a Science Project.
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HOW MUCH IS WIRING ON A COMMERCAIL WIND TURBINE?
Feb 29th
Question by gogreenandre:
how much is wiring on a commercail wind turbine?
Commercail Wind turbines
Can anyone tell me any details on expanding the Grid line for Commercial Wind Turbines or any other Details on them such as. Wind study websites, Turbine companys .ect.
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DO YOU NEED A REGULATOR TO HOOK UP A 5000 WATT POWER INVERTER TO A SOLAR PANEL?
Feb 29th
Question by :
Do you need a regulator to hook up a 5000 Watt Power Inverter to a Solar Panel?
I am thinking about buying a 5,000 Watt Continuous/10,000 Watt Peak Power inverter and a 45 Watt Solar Panel Kit, to use to run the lights and some utilities with, and I was wondering if I would need a regulator.
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THE NEW ENERGY SAVING LIGHT BULBS – THE CURLY KIND – CAN YOU USE DIMMER SWITCHES WITH THEM?
Feb 28th
Question by cwstuffff:
the new Energy Saving light bulbs – the curly kind – can you use dimmer switches with them?
Can I put them in ceiling fixtures that have a rheostat dimmer control at the light switch?
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IS IT POSSIBLE TO HAVE A WIND TURBINE IN MY AREA?
Feb 27th
Question by :
Is it possible to have a wind turbine in my area?
My Latitude: 52.60048
Longitude: -2.1053
Average yearly wind speed at 10m above ground: 5.3 m/s
Am i able to have a wind turbine installed in my area?
what is the lowest wind speed that you are available to have one at?
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I NEED HELP ON SOLAR ENERGY FOR A COMPETITION?
Feb 27th
Question by !@@#@#!@:
I need help on solar energy for a competition?
My question is what besides solar panels and zeolites / photovoltaic can store solar energy?
Our project is about using nanotechnology to store solar energy. We are trying to think and look of something that might store solar energy and is much like chloroplasts (if possible).
Thank you
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ARE THE STREETLIGHTS IN AUSTRALIA UNIFORMLY THE MOST EFFICIENT, ENERGY SAVING, BEST LIGHTGLOBES AVAILABLE?
Feb 27th
Question by :
Are the streetlights in Australia uniformly the most efficient, energy saving, ideal lightglobes available?
The same with public buildings is a sidenote.
I have a feeling that the streetlamps are old, inefficient ones because of the color but I am not certain.
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