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Electric Motor and Magnet Kits
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
A trio of the best science education kits we have seen dealing with electricity, magnetism, motors and generators. The 44 page instruction booklets are educational and complete; state problem, approach and explain what is happening for a series of projects of graded difficulty. The Motor/Generator kit includes several introductory experiments on magnetism as well as six complete motor generator projects. The Electromagnet kit provides experiments including the building of an electromagnet, a doorbell chime, a telegraph, a relay and an electric catapult. The Levitation Set experiments with magnetic fields, gravity, and equilibrium; plus everything you need to build a magnetic levitation train! All are complete except for batteries. Strongly recommended for their quality, the accuracy of their science and the interest they will sustain. Ages 10-18.
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89339 ELECTROMAGNET KIT | |
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89714 MAGNET LEVITATION KIT | |
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89338 MOTOR/GENERATOR KIT |
A Pyramid of Prisms
Polished glass equilateral prisms. Equilateral because each edge of the end is the same length, 32mm. Thus, as all you geometry students know, each of the angles is also the same, 60 degrees. These are school grade and are fine for decorative and demonstration. They do a nice job of diffracting light to produce a nice rainbow-like spectrum, but are definitely not up to instrumentation standards. The missing dimension, length, is shown below.
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31801 PRISM, 2" | |
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31798 PRISM, 4" | |
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31799 PRISM, 6" |
Better Grade Dental Tools
A variety of shapes and ugliness, though no unbroken tips. Some single ended, some double. Super for all manner of hobbyism, except for do-it-yourself-dentistry. Excellent price in today's weakened dollar market. All stainless steel.
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4358 DENTAL TOOLS |
Needle File Set
Miniature 5–1/2" steel needle files. They come in the usual assortment of flat, wedge, triangular, and round shapes, (10) in all. They seem to be pretty uniformly fine with none that we would call coarse. Made in China, they come in a vinyl carrying case that snaps shut. Not as classy as some of the sets we have seen in the $12.00 range, but perfectly serviceable for most applications. And at a third the price.
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10900 NEEDLE FILES |
Disposable Scalpels
Just because hospitals toss 'em after one use doesn't mean you should. These are sterile scalpels, and they're ultra-handy in the shop or craft room. Measure 6" long with snap-off blade shields. You pick #10 with a rounded profile or #11 with pointed blades
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89241 SCALPEL, #10 | |
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89243 SCALPEL, #11 |
Hemostatic Heaven
Hemostats are the clamplike devices dangling from veins and arteries in melodramatic operating scenes. Our particular collection are Pakistani surgical-grade instruments made of magnetic stainless steel. As such we rate them pretty good, but not fantastic. Hemostats look like little pliers. The jaws are relatively fine, with rounded tips. The inside faces are lightly serrated to get a grip on tubing or body plumbing. And the handles are much longer than the jaws. Now the heavenly part. Great hobby clamps that can be worked into small areas. Fine heat sinks for electronics. Good hook extractors for trout fisherpeople. Excellent tubing clamps for flow-sensitive chemistry experiments. Sizes are approximate length.
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3697 HEMOSTAT, CURV TIP 5-1/2 | |
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91105 HEMOSTAT, STR TIP 12" | |
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6273 HEMOSTAT, STR TIP 7-1/2" |
Screaming Yellow Banners
Each has black lettering stenciled on bright yellow plastic tape, with the message repeated over and over. They are 3" wide by 200 ft or 1000 ft long. All are the real thing, made for sale to police and other serious users. Some have an obvious industrial application, some will work in the school playground, some seem appropriate to cordon off the kids’ rooms.
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22973 CRIME SCENE TAPE (200 FT) | |
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37648 FIRE LINE TAPE (1000 FT) | |
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22970 POLICE LINE TAPE (200 FT) | |
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12436 SHERIFF LINE TAPE (1000 FT) |
Real Corks!!
We have obtained a large number of real natural corks, mostly surplus with a few fill-ins bought commercially. They range across the popular sizes used in science labs to seal vessels (drill your own holes for glass tubing, etc) and to use as floats. Or just use them to seal bottles that don't have closures or cry out for a decorative seal.
| Top Dia. | Bottom Dia. | ||||
|---|---|---|---|---|---|
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92688 CORK #0 | 3/8" | 9/32" | Details | |
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88746 CORK, #00 | 5/16" | 7/32" | Details | |
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92718 CORK, #1 | 7/16" | 5/16" | Details | |
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89230 CORK, #10 | 1" | 3/4" | Details | |
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89232 CORK, #16 | 1-3/8" | 1-1/16" | Details | |
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1711 CORK, #2 | 1/2" | 7/16 | Details | |
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89234 CORK, #20 | 1-5/8 | 1-5/16" | Details | |
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88748 CORK, #3 | 9/16" | 7/16" | Details | |
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23594 CORK, #5 | 11/16" | 9/16" | Details |
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BOTTLEMANIA
Zillions of little bottles. Renegades from a pharmaceutical company, leftover unfilled from runs of exotic we-know-not-what. We have divided them into three basic shapes: A, Narrow Mouth, h (Narr Mo) have a 10mm dia. x 4mm long neck on top of a squarish shoulder, a 13mm dia. 3mm rim and a 7mm dia. opening; B, Wide Mouth, (Wide Mo) have a 16mm dia. x 4mm long neck on top of a squarish shoulder, a 19mm dia. x 3mm rim and a 12 or 13mm dia opening; C, Sloped Shoulder, (Sl Sh) have roughly 5-6mm long neck that tapers from the soft shoulder to 15mm dia, with a 19mm dia x 3mm rim and a 12-13mm dia. opening. Height refers to height overall, and dia. to the body dia. in the table below. Great items for the doll house (for kids old enough not to swallow them), to hold tiny wild flowers, for decorative art work, individual cruets, or just to hold and marvel at. All quite sturdy glass. In the real world, you would pay from $75 (smallest) to $225 (biggest) for 288 of these, which is the smallest quantity you could get!! Narrow mouth bottles take a #00 cork. (Our part number 88746) Wide mouth and sloped shoulder bottles take a #3 cork. (Our item number 88748)
| Dia. | Height | ||||
|---|---|---|---|---|---|
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40108 NARROW MOUTH 10ML CLEAR | 22mm | 52mm | Details | |
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4735 NARROW MOUTH 5ML AMBER | 23mm | 37mm | Details | |
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31492 NARROW MOUTH 5ML AMBER | 21mm | 39mm | Details | |
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31495 NARROW MOUTH 5ML AMBER | 21mm | 38mm | Details | |
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40107 NARROW MOUTH 8ML CLEAR | 24mm | 40mm | Details | |
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40815 SLOPED SHOULDER 100ML CLEAR | 52mm | 95mm | Details | |
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40814 SLOPED SHOULDER 25ML CLEAR | 32mm | 57mm | Details |
Padded Pouch
Protect your car insurance and registration papers in this padded vinyl, black zippered pouch. That's probably the intended use since it has Grand Am stamped on the front. The 9-1/2" x 4-1/4" x 3/4" pouch has 2 inside pockets and 3 inside slots to hold cards. Even if you don't have a car, the zippered pouch is great for your cash, checkbook and coupons.
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28159 GRAND AM POUCH |
No More Cooked Kids
Cranked-up water heaters mean clean laundry, but risky showers. The 1-1/2" wide x 2" long Scald Guard has a standard 3/4" thread, and screws in between your shower head and water pipe. You decide what "too hot" is, and the adjustable valve reduces the water flow to a trickle when it hits that temperature. Make life safer, especially for the very young and the very old.
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28854 SCALD GUARD |
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