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Ultra Petri Dish
A great find: sterile plastic petri dishes, 90mm dia x 13mm deep, with a loose fitting lid. Great for growing cultures for your science fair experiments. Our each (20) dishes and lids in a sealed, sterile package.
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52554 PETRI DISH, 90MM |
Break Your Own Geodes
Pop one of these roughly 1-1/4" dia stones into the toe of a sock, smash it with a hammer, and be the first person ever to see your real-as-Nature-makes-it geode!! Ninety percent of them have the familiar beautiful white crystals inside. Formed by volcanic action, they are found all over the world, but ours are from Mexico. There is no way to tell from the outside if they have crystal centers, but we will send you two just to raise your odds, and we haven't had a dud yet in our stores!! Much much more fun and satisfaction than buying one already cracked.
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88823 GEODES |
Half Past Banana
Resist the urge to just plug the electrodes into a nectarine and tell people what a sweet little clock you have. Read the few enclosed pages of background material and the explanation of the electrochemical reaction in an organic battery, and stagger your fans with your brilliance. Schylling's Fruit-Powered Clock kit also includes a 2-1/4" x 1-1/4" LCD clock/calendar, leads, a jumper wire, a stand, and complete instructions. You supply the fresh fruit. (It also works with a potato. Ain't science wonderful?) A great teaching device for 8-year-olds and up. No soldering required.
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91735 FRUIT CLOCK |
Long, Tall Allens
Hex keys with an attitude. You get (25) heavy-duty keys ranging in lengths from 1-1/2" to 6-1/2". SAE sizes are listed as 3/8", 5/16", 1/4", 7/32", 3/16", 5/32", 9/64", 1/8", 7/64", 3/32", 5/64", 1/16", and 0.05". The slightly shorter millimeter metric keys are listed as 10, 8, 7, 6, 5.5, 5, 4, 3, 2.5, 2, 1.5 and 1.27mm. A super set for the money.
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33755 HEX KEY SET |
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Radiometer
Another oldie but goodie. 5" high evacuated clear glass stand 3" in diameter at the top. A four bladed vane is balanced on a needle inside the sphere. Because opposite surfaces of the vanes are black and white, incident radiant energy is absorbed or reflected to a different degree. The result is a spinning vane. The brighter the light, the faster it spins. Simple, but compelling. Brief explanatory instruction sheet included.
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3817 RADIOMETER |
Punchy
Permanently mark soft metals, plastics, leather and wooden items with this excellent 38-piece punch set. Imprint 3/16" characters -- 26 uppercase letters, numbers 0-9, a period and an ampersand. It comes with an automated, spring-loaded punch 6-1/2" long, all stowed in a permanent, molded-plastic storage case.
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91983 (38) PC PUNCH SET |
Original Slinky(r)
Does anyone need to be told what a Slinky(tm) toy is?? Okay, it is a very slack spring, 2-7/8" dia x 2-1/2" long, compressed. It will stretch out to about 5 or 6 feet long without deforming. That's the boring part. The interesting part is that it "follows" itself. Slosh it from hand to hand. Put in on the top step of stairs, flip the end down a step, and watch it walk down stairs, or down an incline. Believe us, no childhood (or adulthood) is complete without an original stainless steel Slinky(tm). It was hard for us to find it, but we are glad we did. You should be too.
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88701 ORIGINAL SLINKY |
A Light In The Darkness
This little 120 VAC, 40 mA neon indicator lamp is 3/8" x 7/32" dia, with 1" wire leads. It has clear glass and a nice orange glow, but with its 150 ohm resistor it's a little dim to be used in bright light. We suggest you use it in darker surroundings, because you don't want to remove the resistor. Like we did....
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31636 120 V NEON LAMP |
EMF Tester
Here's a cost-effective tester that lets you determine the electromagnetic field around power lines, appliances, computer and communication equipment and industrial devices. The hand-held instrument measures EMF radiation from 30 to 300 Hz. Single axis. The range is 0.1-199.9 mG and 0.01-19.99 uT, with an accuracy of +/- 4%. The 5" x 2-3/4" x 1" plastic case has a 1-3/4" x 3/4" LCD display and a switch to toggle between micro Tesla and milli Gauss. It's quick, easy and reliable, and when you see the EMF around your old monitor, it will give you one more reason to buy the new one you want!
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92254 EMF TESTER |
Rotary Tool Set
Not every well-made rotary tool is a big-D. We consider this one not only a good-quality tool, but an excellent buy. The fitted plastic carrying case 12" x 8-1/2" x 3-1/2" contains not only the 120VAC-powered 8,000-30,000 rpm mini grinder, but a stand with a C-clamp to mount it on a bench or table, a 3-ft extension shaft, and a good assortment of bits, grinding stones, cut-off wheels, etc, including collets to fit 1/8" and 1/16" bits. The telescoping stand extends from 10" to almost 22" and holds the tool above your work, while you grind, sand, cut, etc., with the tip of the convenient, easy-to-grip, flexible extension. A nice package, and a very nice gift for yourself, or for anyone who enjoys working with hobby tools.
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92283 MINI GRINDER |
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Reelly Convenient
Reel in your keys. This 1" split key ring is attached to a 40" retractable metal cable. The fine cable retracts into a 1/2" thick x 2" dia case with a black-plastic front and a steel back. On the back is a steel belt clip. Nice quality.
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92191 REEL KEY CHAIN |
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