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02. Aug 10

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How can a model sail car go against a headwind?

http://lentok.blogjer.net/2010/08/02/how-can-a-mod...

Can a small model sail car go against a headwind? If so, what is the best shape/orientation of the sail? If that is not possible, what other designs (which are powered by the headwind itself) are capa...

06. Jan 11

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The Best Surfing - Just another Blogjer.net Blogs ...

http://lentok.blogjer.net/2011/01/05/the-best-surf...

Are you new to the sport of longboard surfing and want to fast track your learning program? Or are you a veteran of the sport who needs to iron out some bad habits you have picked up along the way?

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