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February 01 2010

frapzzt
01:44
9100_5a71_500
Reposted bytechnikerkylindra

January 24 2010

frapzzt
00:24
Reposted fromboarding boarding
frapzzt
00:11

Wind Turbines Leave Clouds and Energy Inefficiency in Their Wake

Downstream wind turbines can lose up to 30 percent of their power

Clouds stream in the wake of wind turbines arrayed at the Horns Rev offshore wind farm in this stunning photo. But David MacKay, a physicist at the University of Cambridge in the UK, sees the image as illustrating the common problem of back-row wind turbines losing power relative to the front row.

Downstream wind turbines may lose 20 percent or even 30 percent of their power compared to their fellows in front, according to a study on wake effects at Horns Rev that MacKay highlights on his blog. The paper also emphasizes that different wind directions make it practically impossible to gauge an overall "steady state" for large wind farms, unless researchers can sample wind speeds and directions at multiple points throughout the array.

This shows that wind energy may represent a highly visible form of alternative energy, but certainly not one without its quirks and controversies. Still, better technology can squeeze more juice out of each gust, and cooperative energy-sharing efforts can help offset the fickle nature of wind power,

Readers seeking more info on the energy revolution might also look at MacKay's book, Sustainable Energy -- Without the Hot Air. The work has received rave reviews from the likes of Science magazine and The Economist, and it's available for free digital reading here.

[via David MacKay and Dong Energy]

Reposted fromSigalontech Sigalontech viatowo towo
frapzzt
00:11
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→ www.gcfoodguide.com.au
Jeszcze jeden obrazek w filiżance. A właściwie cały obraz, dopracowany widoczek łódki płynącej po wodzie, na tle zachodzącego słońca.
Reposted fromkawa kawa viatowo towo

January 23 2010

frapzzt
20:34
2036_d544
→ effeemme.tumblr.com
Reposted fromqueitsch queitsch viatowo towo
frapzzt
18:05
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Reposted bydatenwolflisaProlagusbindermichiZaphodBastrotelofycliffordyetztrrhoacidkrannixhdsmschuettbrightbyteDiviusakElbenfreundgirlwithalibraryfaselszaraantifuchstoasteaterlxaauthmillenonsofastterreptiktowopenpenMantojulifinkreghmoopqueitschscattynicapicellafpletzniedakhnibblermatthiasrStevieKiwiscottytmadnanhairinmyIntethrognobonkSupergirlDeva

January 22 2010

frapzzt
22:12
6532_7881
The Truth About Owls.
Reposted fromtineaux tineaux viatowo towo
frapzzt
21:04
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→ www.flickr.com
dubai++
Reposted fromnylki nylki
frapzzt
21:03
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→ www.arbesman.net
Milky Way Transit Authority map of the galaxy
Reposted fromsnej snej vianylki nylki

January 21 2010

frapzzt
20:04
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→ www.yankodesign.com
via Diet Watt Electricity Usage Monitor by Hyun Joo Lee & Eu Tteum Lee » Yanko Design
Reposted frommuhqu muhqu viastarbug starbug
frapzzt
13:29
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Durch und durch erwachsen...
Reposted frommalech malech

January 20 2010

frapzzt
16:47
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Reposted bytechnikerneuernick
frapzzt
12:59
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→ imscared.tumblr.com
Reposted fromtenshi tenshi viamalech malech

January 18 2010

frapzzt
20:40
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→ uppereastside.tumblr.com
Reposted fromozelbot ozelbot viastarbug starbug
frapzzt
15:20
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Reposted byShnifti Shnifti
frapzzt
01:14
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Reposted bystarbug starbug

January 17 2010

frapzzt
22:03
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→ www.archdaily.com
via The Black House / Andres Remy Arquitectos | ArchDaily
Reposted frommeister meister viaID ID
frapzzt
22:03
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→ www.archdaily.com
via House S / Grosfeld van der Velde Architecten | ArchDaily
Reposted frommeister meister viaID ID

January 16 2010

frapzzt
19:38
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→ www.flickr.com
schoko caranel kuchen mit sahne und hagelslaag

January 15 2010

frapzzt
21:49
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→ raddblog.wordpress.com
Reposted frommraumrau mraumrau viaID ID
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