sonic waves

12.03.08

A Little Sunshine, Miss

How to use solar power to power a hand-held radio telescope or a simple solar voltage meter

By Dave Prochnow Posted 08.16.2007 at 11:48 am 4 Comments

Summer means sunshine and here are a couple of neat projects that you can quickly build for exploring two different properties of the sun: radio spectrum analysis and solar radiation measurement. While both of these projects are very simple in their construction, you can still perform crude data collection with each one. Throw in some exciting solar experiments and now youre talking daytime science fun for entertaining youngsters during the dog days of summer.

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speedy The Fastest Swimsuit on Earth
"At the Beijing Olympic pool, perhaps the only star bigger than Michael Phelps was his swimsuit. The Speedo LZR (pronounced "laser"), like Phelps, didn't disappoint: 16 of the 32 gold-medal winners wore the full-body suit, and another 13 wore LZR pants."
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speedy A Finish that Repairs Itself
"It won't save you from a key-gouging vandal, but the finish on the 2008 Infiniti EX and FX-model SUVs can erase scrapes caused by, say, car washes or stray branches."
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speedy Boeing Advanced Tactical Laser
"Truck-mounted IED-destroying lasers have already been tested in Iraq, but firing lasers from an airplane is a more difficult proposition."
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speedy A Spit Test for Heart Attacks
"This year, San Antonio EMT crews began using a spit test that detects cardiac arrest faster, more accurately and more cheaply than other diagnostic tests."

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Eleven Clever Tips for Digital Camera Owners
You've got the technology in your pocket, so make the most of it
Middleweight Camera Championship
A series of comparison shots from the showdown of smaller “big” cameras from Canon, Olympus, and Panasonic
Dude, Where's My Flying Car (and Jetpack, and Robot Armies)?
Whatever did happen to yesterday's beloved technologies of tomorrow?

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