Golf Ball Technology May Improve Your Car’s Gas Mileage

Golf Ball Technology May Improve Your Car’s Gas Mileage 

 FastSkinz

I get really skeptical whenever I hear about some gizmo that supposedly saves lots of gas, but this dimpled car wrap kind of makes sense. Long ago, golf ball manufacturers discovered that a dimpled surface would help a ball to fly farther through the air with less drag, so why not apply the same thinking to cars? The dimples reduce the wake turbulence caused by early separation of the boundary layer, and while my high school physics is pretty rusty these days, it certainly sounds plausible.

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PermaFlow Lets You Be Your Own Plumber

PermaFlow Lets You Be Your Own Plumber 

PermaFlow 

The holidays are over now and I’m wiping my brow in relief that I didn’t have to call a plumber once between Thanksgiving and New Year’s! I usually don’t get through that period without the kitchen sink backing up. But one of 2008’s most popular new inventions, not to mention one of Pop Sci’s Best of What’s New, PermaFlow, tells me that I may not even have to call a plumber if the sink or toilet backs up.

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Noise Suppressor For Jet Engines In the Works

Noise Suppressor For Jet Engines In the Works 

Good news for anyone living near an airport: someone’s just thought of a way to quiet down those noisy jet planes. Dimitri Papamoschou at the University of California filed a patent earlier this year for a jet-engine silencer. Recognizing that a great deal of the noise jets create is due to turbulence in fast-flowing air from the engine, he clever devised a way to separate the expunged air into two channels of high and low speeds, putting the fast stuff up top so the noise is directed upwards. If it works noise on the ground could be reduced by more than half (about 6 dB).

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