
This little electronic marvel is for timing your speed and counting laps on "S" scale (1:64) race cars. Think Hot Wheels®. Think Pinewood Derby. Made for Radio Shack as ZipZaps Micro RC", it uses infrared LEDs and sensors to measure speed in ft/min or mph, and records individual lap times for up to 6 laps, calculates total time, and stores the fastest lap time and speed. The main unit shows speed and time on 1-1/8" x 5/8" LCD displays, and has a red indicator light to show that the sensors are aligned. (Sensors will work best in a room that isn't over-lit). Measures (1) car at a time, and takes a total of (2) "AA"s, and (2) "AAA"s.
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37529 SPEED-LAP COUNTER |
When you could just order this 480-pack of 1/4 watt, 5%-tolerance resistors. You'll get (30) pieces each of 10, 22, 47, 100, 220, 470, 1K, 2.2K, 4.7K, 10K, 22K, 47K, 100K, 220K, 470K, and 1M OHM.
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93191 480 RESISTORS |
The perfect nightlight for the laboratory or for the mad scientist at home, each heart-shaped plasma bulb screws into a mini-socket (1/2" dia) in the included, switched, wall-outlet adapter, or can be unscrewed and moved to any candelabra socket. It strobes happily along by itself, but will follow your finger, or the cat's paw, like good plasma lights everywhere.
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37876 PLASMA HEART |
Can you say peace of mind? Relax with the ultimate emergency accessory: a cell phone charger that works with a single "AA" battery (included). Comes with a much-larger-then-usual selection of (8) adapters, designed to work with (2) different Nokia phones, (3) Motorola (including the Razr), (1) LG, (1) Samsung, and (1) Sony Ericson. Run the phone directly off it, or leave it in to charge.
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93243 PHONE CHARGER |
Or find fluorescence in rocks. Light up your own disco. Play CSI, Your House. Make your teeth glow in the dark. All this and more is possible with the magic of black light. You pick: the short one is 6-3/8" long x 2" wide x 7/8" thick in a black-plastic housing with an incandescent flashlight at the top, a 6-1/2" wrist strap, and a handy 10pp stain-removal handbook. Takes (4) "AA"s, not included. The big guy is 12-1/2" long, with a plastic casing (our pick of colors) designed to be mounted with double-sided tape. Takes (8) "AA"s, not included.
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93348 12-INCH BLK LIGHT | |
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92928 STAIN DETECTOR |
Turn your electric drill into a hand-held CNC machine with these multi-angle drill bits. Imagine omni-directional Forstner bits, able to cut forward, back and sideways, in straight lines or curves. They turn a drill press into an upside-down router table. The set of (4) includes 3/8", 1/2", 3/4" and 1", all with 5" long x 3/8" dia flattened shanks. From Illinois Industrial Tool®. Handy for carpenters and electricians, and a boon to cabinetmakers and wood-carvers.
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38093 MULTI-ANGLE BITS |
This nice One Touch gear-box kit from OWI® features (6) gear ratios (6.8:1, 17.68:1, 45.97:1, 119.52:1, 310.74:1, and 807.93:1) in (2) switchable modes, plus a 3VDC motor so you can use the finished product to drive pulleys, wheels, fans, science projects, or maybe a toy car. Requires only regular household tools to assemble it, and has (4) adjustable mounting brackets. Overall size when finished is 2-7/8" x 3-1/2" x 5-8" high.
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93460 GEAR BOX KIT |
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