This photo of Mount Redoubt, caught in mid-eruption, was taken from a height of 423 miles, on March 30, 2009 as the GeoEye-1 satellite moved from north to south over Alaska at a speed of 4 miles per second. Since the amount of area is so large, the ground resolution of this image is 2 meters.
Midget parts, including the two miniature tubes above, keep this new civilian walkie-talkie to a fourth the size of wartime military outfits. The "transceiver," with folding antenna, weighs only 11 ounces; a headphone and batteries, carried in a separate case, less than 2 lb. The set is made by Citizens Radio Corp., of Cleveland.
Two cigarette lighters with clear plastic fuel reservoirs are new to the market. Each sells for about $5. At left is the Ritepoint Liter, made by the Ritepoint Co., St. Louis, Mo. It is available in four different colors. The fuel supply is transferred to the wick as needed by a finger-touch valve.
Here's a handy carrying case for your movie reels. Made from 6" self-locking stovepipe, it stands 17 ½" high and accommodates 24 ordinary 200-foot reels.
After compressing the pipe until it just suited the 5 ¼" diameter of the reels, I cut it lengthwise into halves. Then I hinged the parts together, drilling the metal and using rivets to attach the hinges. On the other joint, I installed two suitcase catches, locating these to take care of the overlap.
This multiple tape recorder removes the last obstacle to commercial recordings on magnetic tape -- the mass production of duplicate tapes. It makes eight duplicates at once at three times normal speed. It can also record two sound tracks on the same tape at the same time. Thus the machine can turn out eight hour-long recordings in 10 minutes, or 48 an hour.
You shouldn't fall asleep at the wheel with this chin jabber on the job. Worn around the neck, it holds a sharp prong under the driver's chin. If his head nods, the point quickly awakens him. Invented by K. H. Liman, of Rye, N.Y., it has a rubber knob below the tip to prevent serious injury.
Do you moonlight as a scientist? Rush home from your day job to tinker and mix in your home workspace, crammed in your basement or garage? Peruse lab equipment websites during your lunch break? Then read on, you lovers of science. Read on.