
That's what you get with this tesla coil!! Brand new, commercial item, great for classroom demonstrations and experiments. The 50,000 volt capacity generator radiates high frequency energy through space... enough to light fluorescent tubes two feet away. It uses 115 VAC (60 Hz) with an electro-magnetically operated interrupter buzzer, high voltage capacitors, inductive coil transformer, and a monopolar high frequency transformer generator to do the trick. 11" high, with a 6" sq. x 2" high protective housing for the generator. Includes accessories and instruction booklet with 19 experiments. Pretty amazing. But please, this is not a toy and should be used only under adult supervision.
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70301 TESLA COIL |
Well, the next best thing, anyway. 200,000 volts of electrostatic energy created by the Van de Graaf generator you assemble from the kit. Assembly is easy, you need a screwdriver, pliers and scissors - no soldering. A newspaper-like set of instructions includes lots of fun experiments. For grade 6 and up. This is not a toy and should be used under adult supervision. A great tool for teaching about electricity.
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91469 VAN DE GRAFF GEN KIT |
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 |
…when you crank up this 13-1/4" tall, hand-cranked Wimshurst generator. They were the toast of the 19th Century, and remained the hottest thing around, electrostatically speaking, until Bobby Van de Graaf came along. This one works like a top, zapping sparks to a fare-thee-well with very little cranking. It's mighty pretty too, in acrylic, white and silver, and will dress up a dull physics or electronics lab.
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93600 WIMSHURST GENERATOR |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Colorful combinations of connective creativity and counting games are awaiting kids in this bag of (50) connectable cubes in (5) colors: red, yellow, purple, green and orange. Each 3/4" cube has (5) holes and (1) nib for many possible connections, and each also has a bore through it so they can be strung like beads. Teach counting, make letters, picture frames and shapes. Good for hand-eye coordination, too, and so inexpensive you can by a bunch for large building or counting projects.
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38968 COUNTING CUBES |
Learn geometry, or learn to build the world’s coolest sand castles. Our each is a set of (4) geometric shapes in brightly colored transparent plastic. The set of (4) includes a 3–7/8” cube, a 3–7/8” x 3–7/8” x 1–15/16” rectangular box, a 3-7/8" dia x 3-7/8" cone and a pyramid with a 3–7/8” sq base. All shapes are open on the bottom, the better to get the sand into them. And out of them.
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31712 SET OF 4 SHAPES |
Classroom and Science Fair alert: Now you can order an 8-pack of metals and metal alloys for demonstration purposes. Each pack of 1" dia x 1/32" thick discs includes aluminum, bronze, brass, copper, n/silver (w/nickel), m/steel (mild: low carbon), stainless steel, and zinc. Composition of each is stamped on one side of the discs.
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93769 METAL SAMPLES |
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 |
You can start with our single aluminum tuning fork, 2-tined and 7-1/2" long. It vibrates at 256 hz, and is labeled "C". Or you can order the set that has (8) forks and a mallet with a rubber-tipped plastic head. The forks are labeled low-C to high-C and come in a fitted, latched wooden box. Unfortunately, C.J., who has perfect pitch, tells us that his pitch is more perfect than most of the tuning forks. He also says you can file the tips, tuning them to an electronic keyboard until they're perfect - and we think there's a certain cachet to telling people you tuned the forks yourself. But they are perfect, if you're using them for things like teaching principles of sound or driving the chihuahua crazy.
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91185 TUNING FORK | |
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91772 TUNING FORKS, SET |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Get your pre-Nobel prize-winning chemist started with this wooden organic molecule structure set. It includes a variety of balls in a variety of solid colors to represent different atomic elements such as carbon, nitrogen, hydrogen and the like. This set also includes one-inch and two-inch wooden connectors and two-inch helical springs. Full instructions included for building 3-D models.
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89274 KIT MOLECULAR, WOODEN |
Biology and anatomy teachers, nursing and medical staffs, anyone who stands up and explains the human body will love this high-quality, full-color set of (38) 8-1/2" x 11" medical transparencies. Our each is a set that includes pretty much the human contents, anterior and posterior, and systems, including vertebrae, sacrum, hand, foot, shoulder, knee, hip, elbow, assorted skin pathologies, heart, ear, eye, sinuses, stomach, rectum, lung, liver, gallbladder, kidney, prostate and breast cancer classifications, among others, many showing attached musculature. From GPI Anatomicals.
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37323 BODY TRANSPARENCIES |
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