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Optical Toy
We believe these rectangular plastic lenses were intended for the view finders in inexpensive cameras. at 15mm x 21.5mm, with a short (-80mm) focal length, and a half aluminized side, they produce a reduced scale image projected onto another image. For instance, hold the half aluminized side toward you about 4" from your eye, and look at a wall. You will see a magnified image of your eye "projected" on a slightly out of focus and reduced image of the wall!! Now move the lens about 10" from your eye, put the tip of a pen about 2" from the lens and you get a big image of the pen superimposed on a reduced image of the rest of the world. Your get the idea!! Good to muse about, explain the optics for a science project, or just use to show your friends how weird the people at American Science are. We'll send you two so your friends can show their friends!!
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2130 OPTICAL TOY |
Letter To The Editor
Sir: It is indeed a shame what our country has come to. I refer to these foam gaskets I recently purchased. They are black, 1-1/2" OD x 1" ID x 3/16" thick, very dense and spongy. I have found them to be excellent vibration dampeners in various mechanical devices in my home and shop. But why did they cost me so little? This low price is an outrage that I worry could lessen the value placed on these fine products by the youth of today. The city council should investigate this matter. -name withheld
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29535 FOAM GASKET 1-1/2" |
Ridgid Wrap
For papier mache modeling, of course. You get a 4"wide x 180" long roll of plaster-coated cloth, wet it, wrap it, and dry it until it's rigid. Finish it with paint or shellac or whatever. "Takes all finishes" the package trumpets. And it's non-toxic, so don't be bashful about rigid-wrapping yourself.
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91074 RIGID WRAP |
Getting Along
Another way to protect floors of all types from the painful scars of furniture scratching. These pads are dense brown felt, 6" x 1/2" x 1/4" thick, with adhesive on the back. They'll easily cut to whatever size you desire. Introduce the pad to your furniture, your furniture to your floor, and see how well they all get along. (4) pads per package, (2) packages per order.
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27205 BROWN FELT PAD |
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Prince Plastic
Sure, when it comes to optical precision, glass is king. But in other categories (price!), plastic is definitely heir to the throne. If you're not looking for precision, but just for some funky lenses for your art project, model or for messing around with light, these 20mm dia PCV lenses will work royally. 6.6mm thick, clear plastic with a -60mm focal length. With (2) 1/8" dia mounting nubs on the side; they should file right off if you don't like them. So let the bluebloods waste their bread on glass; you've got plastic.
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27657 PLASTIC 20MM PCV |
Placebo Lens
Please don't pop these little glass DCX beauties in your mouth. Sure, they're shaped like zinc tablets or miniature communion wafers - thin, 14mm dia - but they'll do you no good inside; probably even cause you harm. Instead, utilize their 48.3mm focal lengths for all classroom projects, or combine these with other lenses to build binoculars, magnifiers, microscopes and telescopes.
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27756 DCX LENS, 14MM |
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Hose Gaskets
Get a whole bunch of these: they'll fit perfectly in your garden hose. Black rubber gaskets are 1/8" thick, 1-1/16" OD, 3/4" ID. Or try them for model wheels, art projects, or really cheap (and ugly!) wedding bands.
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28554 BLACK RUBBER GASKET |
Rubber Stopper
Pat's been hanging around the medical supply house again. We now have a boatload of rubber stoppers, the kind you see on bottles of liquid medicine, crimped down with an aluminum collar. (Pat didn’t buy the aluminum collars.) The medicine is removed via a hypodermic needle through the stopper. The rubber stoppers come in blue or gray They are 3/4” across the top, 5/16” top to bottom, and fits a 1/2” (13 mm) dia opening. Why would you want them? Because they'll fit many of the small wide-mouth and slope-shouldered bottles in our Bottlemania listing. Pat's really good!
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28991 LG BLUE STOPPER | |
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23438 LG GRAY STOPPER |
Itty Bitty Zipseal
Zipseal plastic bag of the size gnomes use to store leftovers. 1" sq, 2" sq, 2" x 3" or 3" x 4" (our each come in bags of 100 count), clear polyethylene (the 2" x 3" 27906 has a white strip across one side, 36562 does not.). Store rings, small rock samples, biology parts, and model pieces. Great for cleaning up behind your Guinea pig when you take him for a walk.
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90273 POLY BAG, 1" | |
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27906 POLY BAG, 2" X 3" (STRIP) | |
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90274 POLY BAG, 2" | |
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36562 POLY BAG, 2" X 3" | |
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34552 POLY BAG, 3" X 4" |
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Isinglass
Mica composite, to the purist. Nominal 1/16" thick, although it may be as thin as 1/32". 1–3/4" x 2". Use it as an electrical insulator in the lab, split it and combine it with cellophane to make colors and polarize light, replace the window in your wood stove, or make “isinglass curtains that roll right down” for your model surrey!!
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24208 MICA,MED |
A Snarl of Magnet Wire
One of those sharpie East Coast outfits pulled a fast one on this poor naive Midwestern dealer. The result is we have a pile of exotic coated copper magnet wire. The coatings and colors vary widely, as does the gauge of the wire. With a couple of exceptions there isn't enough of any one kind among the hundreds in the pile to list separately. So we are offering an assortment and you get whatever we grab. Either way you will get a terrific value, particularly if you have an exotic application and get just what you need. Even if you are just making a garden variety coil or electromagnet you will still find the prices are very good. So go ahead, profit from our misfortune. We are glad to be of service. Sigh.
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36227 MAGNET WIRE, 16 GA | |
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36228 MAGNET WIRE, 20 GA | |
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22146 MAGNET WIRE, 21 GA | |
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36229 MAGNET WIRE, 24 GA |
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