
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 |
An easy way to light up the kids' eyes! Teach them to wire a simple circuit with our basic components. The knife switch is mounted on a 1-1/2"x3" black-plastic base. The miniature plastic socket holds a standard flashlight bulb with a 14 mm dia screw base. We pack 6 volt and 3 volt round bulbs, or 1.5 volt bell-shaped bulbs, (5) to a package.(Bulbs are rated slightly higher to prevent them from burning out.) Or hook up the black plastic and metal 2" x 4-1/4" telegraph key with brass contacts and (2) terminal posts with nuts. Our blue-plastic holder for (1) "D" battery has a small tab at each end to hook a lead to, and a 1/8" square mounting hole at each corner. You add the mounting surface and the know-how. Actual bulb voltage listed in parenthesis.
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91160 1.5 VOLT BULBS (2.5 V) | |
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91159 3 VOLT BULBS (3.8V) | |
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91158 6 VOLT BULBS (6.3V) | |
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91769 BATTERY HOLDER | |
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38806 KNIFE SWITCH, DOUBLE POLE DOUBLE THROW | |
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38808 KNIFE SWITCH, DOUBLE POLE SINGLE THROW | |
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38805 KNIFE SWITCH, SINGLE POLE SINGLE THROW | |
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38811 SOCKET | |
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91813 TELEGRAPH KEY |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
We're really charged up about this modular Electronic Lab from Maxitronix(tm) that appeals to both girls and boys. The 4-in-1 set of interactive action kits includes colorful 5-1/2" x 3" x 1-1/8" plastic housings and components to build an electric bell, motor, generator and meter. As the manual says, they're "safe, solderless, educational and fun!" And the manual is the best we've ever seen. Every part and every step is illustrated and labeled (it doesn't presume you can tell an egg lug from a tapping screw), and it explains HOW each experiment works. Kids trying out the 10 suggested experiments learn to reverse a motor's direction, operate the bell or motor with the generator, use the meter to measure electricity and more. Requires (2) "AA" batteries (not included). This is an exceptional set for boys and girls aged 10 and up.
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91870 ELECTRONIC LAB |
Backups! Manuals, reports, even personal genealogies aren't complete without their electronic backup. Our vinyl sleeves hold CDs or high-density computer disks, and are prepunched with (2) holes on 3–1/8” centers. You and your trusty paper punch can easily make them fit over (2) rings of a (3) ring binder. The double sleeve is transparent, 6" x 5-1/2", with a white-vinyl divider to separate (2) CDs or disks. Just think – data where you can get your hands on it, even if computers and personnel have turned over thrice since it was created!
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33687 CD SLEEVE, DOUBLE |
Hey, Coppoletta! Add realism to your home flicks with a Hollywood director's slate board. This 8" x 7" version is wood, painted black with white lettering. The traditional striped arm on top cracks down on the palimpsest where you chalk in the Production, Director, Camera, Date, Scene and Take. Very Vérité
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92253 HOLLYWOOD SLATE |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
It could have been called an Alabama Buzzer after Alabama Vest, the man who invented it. Or a Clegghorn, after Thaddeus Von Clegg, the clock master who fabricated the first one. But the hand-crafted 4-3/4" long steel instrument was a simple amusement, and the 1840s were a simple time. So it's simply a kazoo.
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92395 KAZOO |
They might as well learn something while they're trying to outlast you on eating those lima beans. Set the table with educational placemats and they'll be at least a touch smarter after dinner, even if their vegetable intake is low. These laminated, 12" x 17-3/8" mats have full-color fronts, black-and-white backs. Choose the United States Map, Stars & Constellations, the Periodic Table of Elements or Weather/Meteorological Info.
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92515 ELEMENTS PLACEMAT | |
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93534 FLAG PLACEMAT | |
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92514 STARS PLACEMAT | |
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92513 US MAP PLACEMAT | |
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93379 WEATHER PLACEMAT |
And chart your offspring's growth on this white-painted wooden wall hanging. It's 44-1/2" tall x 5-14" wide x 1/4" thick (and folds in half for storage) with a decorative three-dimensional group of toys and animals near the top. It has markings at 1/2" intervals on both the left and right sides, so you can track two tykes from 2' 4" to 5' 2", plus (7) oval picture cut-outs (3-1/2" x 2-1/2") with age and date lines for displaying their pics. Yup, another find from Lillian Vernon's warehouse.
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37077 GROWTH CHART |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Why is it easier to balance on a bicycle when you're moving than when you're stopped? How do you build a hammer machine? Explore the science of energy and matter with the Physics Workshop from Thames & Kosmos, an excellent kit for anyone eight or over. A very well-written 64pp instruction book guides you through (36) different building projects and (37) different experiments, using the (305) pieces that come in the kit, the single "C" battery that you provide to power the DC motor that's included and, occasionally, a few common household items.
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93113 PHYSICS WORKSHOP |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Cool kit to introduce the beginner (age 10+) to the fabulous world of electronics. You will learn the basics of putting together circuits through over 50 projects building actual devices like an alarm, a radio, a metal detector and much more. The simple but complete instructions explain voltage, current resistance etc. The kit is a giant "breadboard" and wires that can be connected to form the circuits as explained in the instructions…and all without soldering! A fabulous educational item at a fabulous surplus price!!
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29781 ELECTRONIC PLAYGROUND |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Forgive the misspelled title, this is one of the best educational kits that we have! Loaded with magnets, wires and a miscellany of other things (but no battery!) it has everything needed to perform over 30 experiments, build games and generally have hours and days of educational fun! The thirty page illustrated instruction/explanation booklet is complete for self- instruction. Ages 8 and up will have a ball!
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88776 KIT ELECTRO-MAGNETIX |
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