Wind Turbines: “It’s always something.”

Darrieus Vertical-Axis Wind Turbine

Darrieus Vertical-Axis Wind Turbine in Martigny, Switzerland (Source: Lysippos, Wikimedia Commons author (GNU Free Documentation License) (Public Domain))

The recent TGDaily article Wind farms could raise temperatures” [Posted March 12, 2010 – 04:27 by Emma Woollacott] presents a possible surprise environmental concern about using millions of wind turbines to generate clean electrical energy.

It seems that wind turbines change how heat dissipates in the areas downwind of them, because they slow the wind as it spins their propellers. Once one begins to think about it, this makes perfect sense.

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Movie Observation, Life Imitating Art: “Crack in the World” (1965)

I was referred to this article (“Scientists plan to drill all the way down to the Earth’s mantle“) by a tweet from @ebertchicago (Roger Ebert): Drilling five miles down into the earth’s mantle. What could possibly go wrong? http://bit.ly/g9qGVr

Learn more about this movie at the Internet Movie Database (imdb.com).

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Crack in the World (1965)

Summary: A scientist tries to find a limitless, non-polluting energy source by drilling really, really deep into the earth. This can’t end ‘well’.

I first saw this film when I was about 14. Continue reading