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Wednesday, February 8, 2012
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MNN.COM›Earth Matters›Energy›Photos›

10 surprisingly easy sources of alternative energy

10 surprisingly easy sources of alternative energy

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Photo: NASA/Wiki Commons
 
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anonymous
steve 10/15/2011 03:18 AM

Am i missing something, getting energy from out of space and the moon. We have all the energy and space on our planet we need and yet getting energy from the moon makes sence, come on, sounds crazy to me, mabey these people should become politicans.

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anonymous
http:www.ecohip.co.uk 12/30/2010 07:11 AM

Lets not forget that the 'microwaves beams' are unhealthy.

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anonymous
kim 11/19/2010 07:44 AM

FIRST AND FOREMOST LOG ON TO ENCYCLOPEDIA THEN AUTOMATICALLY YOU WILL TAKE ATLEAST ONE STEP IN ORDER TO SAVE OUR MOTHER EARTH. THANKYOU...

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anonymous
metal-monkey 10/17/2010 10:54 AM

All this energy is around us and we've not noticed it until recently. The only problem with Lunar Helium-3 is to get there is to add yet more pollution into our atmosphere :(

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anonymous
Uncle B 06/29/2010 14:37 PM

Oslo, Norway fuels its city buses with methane from sewage and Swedish cities do the same! America wastes sewage, polluting vast areas with it due to the availability of cheap oil. This will change in the next few decades as oil prices are about to skyrocket due to Asian demand for more and the changes China made in the Yuan recently. Good, topsoil building fertilizer can be had from bio-gassing sewage, and American poop is by far the richest in the world - even exceeding that of Indian pigs in.... More

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anonymous
Hannah J 06/23/2010 08:44 AM

I am utterly incredulous. How foolish can you get? Easy?! "All we need to do is mine the moon and invent a way to wireless transfer power from space". Let's not even mention economics!

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anonymous
Tom R Ilsley Jr 06/19/2010 00:55 AM

As a young kid in the 50's I read about this in Colliers Magazine in great detail. The scary thing was that weather control was also shown. I believe if we did develop control we would have lost control and created a nightmare.

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anonymous
Tom R Ilsley Jr 06/19/2010 00:55 AM

As a young kid in the 50's I read about this in Colliers Magazine in great detail. The scary thing was that weather control was also shown. I believe if we did develop control we would have lost control and created a nightmare.

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anonymous
Tate D 06/17/2010 10:39 AM

These are all interesting … easy? … no. Interesting? yes.

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anonymous
Guest 06/16/2010 16:41 PM

this last one reminds me of part of a sci-fi comic called Transmetropolitan where in order to solve an energy crisis they covered mercury in solar panels and beamed the energy back to earth.

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anonymous
jaris 06/15/2010 21:15 PM

in regards to the solar panels in space beaming the energy back to earth via microwave; this was the core of the "sts", sattelite transport system, of jimmy carter's administration, which was a plan to do exactly that. i have the original plans sent to me via the white house during his tenure as president.

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estaples
estaples 06/15/2010 18:46 PM

These are all swell ideas with smart brains behind them! As resources become few and far between it's positive to know that there are easier approaches.

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Space-based solar power

Since the Sun's energy is unaffected in space by the 24-hour cycle of night and day, weather, seasons, or the filtering effect of Earth's atmospheric gases, proposals are underway to put solar panels in orbit and beam the energy down for use on Earth. The technological breakthrough here involves wireless power transmission, which could be performed using microwave beams. 
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