Oct 1, 2008

Double Tennis Racquet Racket

Posted in Science at 1:00 pm by David Bradley -- 2 Comments; add yours

I’m not sure what to make of this, but Don Mueller, of William Paterson University, New Jersey, who goes by the nickname Dr Bones sent me some video clips of what is, essentially, a new sport he invented - two-racquet tennis. Now, my first thought was: “what the flip?” But, apparently his service velocity is higher than that of most tennis professionals, although I don’t think that has anything to …

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Apr 4, 2008

Balloon Party Tricks

Posted in Science at 1:00 pm by David Bradley -- 2 Comments; add yours

Unlike Monday’s wind power video, this one is no joke. In fact it’s testament to the strength of balloon rubber, the force of gravity, fluid mechanics, and high-speed photography. The clip lasts about 32 seconds, but the actual action is taking place in a fraction of that time. Recorded on a Photron
ultima APX at 2000 frames per second. If you view the original high-quality clip you can use the …

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Apr 1, 2008

Wind Power

Posted in Science at 10:45 am by David Bradley -- 3 Comments; add yours

This experiment is closely related to the potato-powered mp3 player but not the lemon battery, so if you try this at home…well…

Anyway, the set up involves a lighted candle, a couple of screws, a glass jar and lid, various crocodiles clips and wires, and a small motor with a fan. Put them altogether, break wind into the jar, and power up the electric motor. It’s a slow burner …

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