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Tornado Tube
Simple, yet clever 1" dia. by 3" long plastic device to demonstrate the vortex effect of a tornado. Partially fill with water one of the two half-gallon size plastic soda bottles which you supply. Screw the bottles into opposite ends of the tube which we supply. Tip so the full bottle is on top and give it a circular starting whirl. Presto! You have a vortex. Call it a tornado if you're a meteorologist, a Charybdis if you're a classicist, or a whirlpool if you're into oceanography. Lots of fun and a fine opportunity to attempt to explain the effects of the earth's rotation on water draining out of a bathtub. The phenomena are related we're told, but good luck!!
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6667 TORNADO TUBE |
Mini-Monster Prism
Optical grade unsilvered glass prism from Uncle's WWII tank periscopes. This one is 2-1/8" on the hypotenuse, 5-3/4" long, and 1-1/2" on each leg. They may come with small non-interfering chips or surface scratches. Great for classroom experiments or for art projects. These are a true surplus find and they will not last forever so get yours today!
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3538 MINI-MONSTER PRISM |
Full Page Magnifying Sheet
Flat plastic Fresnel lens. This flexible magnifier is 7-1/4" x 10-1/4" and only about a millimeter thick. It is great when you need to scan a list or to look for something in a directory. You can see most of the page without moving the magnifier. Only about 1.5 power, but that can make a huge visual difference. The quality is not high, but neither is the price.
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8665 MAGNIFYING SHEET |
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Safety Flasher
"Laser" safety lights each with super bright LEDs run by (2) "AA" batteries that you supply. It's square and has a flashing or steady LED lamp visible up to 2500 feet (distance may be exaggerated). A 2" x 2-1/2" red plastic reflecting lens covers (3) lamps. Hook it on your belt or pack with the belt clip, use the included elastic strap for arm or leg mounting, or the included aluminum flange to attach it to your bike.. It's great for general use as a warning device or as an emergency signal for roadside breakdowns.
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89594 LASER SAFETY LIGHT |
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Half Past Banana
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
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 |
Carton Tape & Gun
An imported tape dispenser specifically for the 2" wide carton tapes listed below. Guns of this type retail at $9.50 to $11.50, but we're offering this price to you as an accommodation to introduce you to the thrill of packaging, and to let you transform your dining room table into a shipping department overnight. The clear tape is an uber-sticky, high-quality tape made in the USA, and can be used as protective covering over labels or for sealing cartons. The tan tape is, well, tan, and the standard lightweight, 2” carton-sealing tape, available in 36 and 110 yard lengths, both of which are on 3” cores and fit the dispenser. And do compare the savings -- even discount stationery catalogs can't touch these prices.
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38752 110 YARDS TAN TAPE | |
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38751 36 YARDS TAN TAPE | |
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10851 CARTON SEAL TAPE DISPENSER | |
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3994P3 CLEAR TAPE, 55 YD | |
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3994P36 CLEAR TAPE, CASE OF (36) |
Learn A Trade
Learn geometry, or learn to build the world’s coolest sand castles. Our each is a set of (2) geometric shapes in brightly colored transparent plastic. The set of (2) includes the pyramid and the cone. All shapes are open on the bottom, the better to get the sand into them. And out of them.
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31713 SET OF 2 SHAPES |
Price Cut
Trying to cut back on hobby expenditures? This incredibly priced utility knife set is x-actly what you need. Standard interchangeable blades and holders, the largest of which has an easy-grip, screwdriver-type handle. Everything is lined up in a fitted plastic box with extra blades magnetically anchored. The 13–piece set has (3) holders, plus assorted blades. The 48–piece set has (7) holders, a wide assortment of blades, (1) tube of glue, and (1) sharpening stone. Very nicely priced. Very sharp.
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91927 HOBBY KNIVES 13 PC | |
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92264 HOBBY KNIVES 48 PC |
Seltzer Power!
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Incendiary rocket fuel? We don't need no stinkin' incendiary rocket fuel. We got the Mighty Seltzer Rocket! The seltzer rocket, made of simple plastic parts. (No, don't lean over it!. That's not a foam nose cone, you know!) The 4-1/4" x 1-1/4" dia seltzer rocket that holds water and (1) dissolving seltzer tablet. The rocket that has shot almost 30 feet in the air for us. It comes with (4) antacid tablets, just like those you can buy at the drug store -- and it's basic science at its best!
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92303 SELTZER ROCKET |
A Gripping Tale
What a cool little clamp! Only 8" long overall, the jaws open to 4" when you press the release button and close incrementally as you pull the trigger. The 3/4" x 7/8" pads on the metal-and-plastic tool won't mar the surfaces they're sandwiching. Makes you want to find something to clamp!
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92041 4" CLAMP |
Harry Potter’s Science Made Simple
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Care to sneak a little scientific education in with all the Hogwart’s wizardry? For ages 8 and up, the Simple Physics kit explains some basics with a few props (balls and sticks) and a binder-ready guide to experiments that appear to be spells and magic. The Astronomy kit includes a nice guide to the basics, including a constellation map, plus instructions and real lenses for constructing a simple telescope. All with appropriate Hogwarts insignia.
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35930 #7 ASTRONOMY | |
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35931 #8 SIMPLE PHYSICS |
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