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New Use for Foam
Foam is not just for the top of a beer anymore. No, now you can protect your floor, counter, concrete, or whatever from damage with our foam discs. One side is super-sticky; attach it to appliances, chairs, maybe even a beer stein. Black, 1/8" thick, 1-3/4" across. But once it's on, it's pert near impossible to remove without destroying the disc. Still, at 10 cents a pop, you can afford to play around.
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27236 FOAM DISC |
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White Chalk
Our pkg(10) will bring you twenty sticks of the basic stuff. Grasp one in your hand, walk to the black board, and strut your stuff! Labeled "Non-toxic, for school use."
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30309 WHITE CHALK |
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Chinex?
Rejoice, we have finally found a source of reasonably priced borosilicate lab glassware. This is the kind of glass in the trade marked Pyrex(tm) and Kimax(tm) labware. The stuff you can put right over the flame of the Bunsen burner, or directly onto the hot plate. This stuff is imported from China, and is considered student grade, which is good enough for anything but the most exotic applications. We have beakers, test tubes, graduated cylinders and flasks. Compare the prices below and you will see that they are around half the U.S. equivalent. Call us for larger quantity prices.
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88987 BEAKER, 1000ML | |
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92611 BEAKER, 2000ML | |
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88985 BEAKER, 250ML | |
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88984 BEAKER, 50ML | |
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88986 BEAKER, 600ML | |
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88993 ERLEN FLASK, 500ML | |
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88992 ERLEN. FLASK, 250ML | |
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88991 ERLEN. FLASK, 50 ML | |
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88989 GRADUATED CYL. 100ML | |
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88988 GRADUATED CYL. 10ML | |
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88990 GRADUATED CYL. 250ML | |
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88995 TEST TUBE, 13X100MM | |
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88996 TEST TUBE, 16X150MM | |
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88997 TEST TUBE, 20X150MM | |
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92614 TEST TUBE, 25X150MM |
Blacklights!!!
Your choice of (4) different kinds of these wonderful lights that are all but invisible, but make whites “glow in the dark”!! Great for Halloween parties, dances, and stimulation of any phosphorescent materials. To avoid eye damage, please do not look directly at the filament of the light. The bulb types are a regular household shaped 60 watt bulb or a 75 watt spotlight shaped bulb. We also have (2) models which come complete with a lighting fixture, reflector, and 18” blacklight fluorescent tube: The fluorescent indoor model has a 18 watt bulb and 6 ft cord for a standard 120 vac wall outlet with a switch; the car model comes with a 15 watt fluorescent tube and 15 ft cord for a cigarette lighter outlet. Great goolish fun! (Please note: The "bulb" types do not glow as well as the flourescent types)
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91252 12 VDC CAR FLUORESCENT | |
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89402 120 VAC FLUORESCENT | |
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88605 BULB, 60 WATT | |
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89401 BULB, 75 WATT SPOT |
Oxidation and the RA Prism
RA means right angle, which in prismese means two 45° and one 90° angle. Oxidation is how glass rusts, and it looks like a powdery white stain that won't rub off. Really doesn't interfere with the optical use of the prism, but it can be annoying. You have two choices. Ignore it and reap the price advantage, or get some of the polishing compound you use on auto windshields, buff off the surface, and reap the price advantage. These seconds have chips and/or surface scratches. Use them as spectroscopic prisms, put two hypotenuse to hypotenuse as beam splitters. All have 1-1/2" legs and 2" hypotenuses. The thickness varies as noted (sizes are approximate), and the silvered ones (sil) have a reflective coating on the hypotenal face while the plain ones (pl) don't. Remember that the silvered ones, which may make better periscopes, don't work for spectral experiments or as beam splitters.
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3530 RA PRISM, 1-1/8" PLAIN | |
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3525 RA PRISM, 1-1/8" SILVERED | |
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4311 RA PRISM, 2-7/8" PLAIN |
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Smooth It Out
Or rough it up, depending on your goal. These sheets of sandpaper will do the trick. Each is 9” x 11” OA and is made in the U.S.A. Top quality seconds. Pick your grit below.
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30596 SANDPAPER, DRY 200 |
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Swinging Balls
The classic swinging balls, to amuse you on slow days in the office or physics lab, and to demonstrate Newton's Third Law. Drop one of the five hanging balls, one flies out from the other end; drop two and two fly out; drop three and it's amazing. The balls are set in a 7" x 9" x 9" high wooden frame. Isaac didn't invent these mesmerizing toys, by the way. That took Simon Prebble (whom some of you may remember as the evil Martin Chedwyn on "As the World Turns") who had an energy transference inspiration in 1967. (Where else can one learn these things?)
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33739 WOOD FRAME BALLS |
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.
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92688P25 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 |
Great Grinders
Great size - their shanks are 1/4" dia. Great quality - brand new Disston vitrified aluminum oxide (for grinding steel). Great price - a mere $1.75/each. You know you have a great desire for a bullet shaped grinding stone. It's a great deal!!
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30964 BULLET GRINDER |
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Grinders
Grindstones to fit the small rotary tools so loved by hobbyists and jewelers. New and all absolutely top quality!! All have 1/8" or 3/32" dia shanks and are made for high speed applications Some are aluminum oxide, some silicon, and they are a jumble of type and shape. They range from 1/4" to 1/2" dia. and from 1/8" (wheel) to 3/4" (point) long. We will pick your assortment stones to save you the worry, and us the sorting. All of these items cost substantially more in your hobby shop or jewelers supply catalog, and often the quality is not as good.
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20342 GRINDING STONE ASST. |
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Sleeping Pad
Campers put these pads under their sleeping bags to insulate themselves thermally and ergonomically from the hard cruel ground. They call them "Insulite" which sounds like a brand name and they are military grade. We don't know if the items we have are seconds from that company or somewhere else, but we can't tell the difference. They are at least 20" x 60" and are 3/8" thick dense foam rubber. We have light blue, dark blue khaki/green and mauve/purple, from which we shall pick your purchase. One side is glossy with more closed pores than the other. We have used them, and they are great! Feather light too at only 20 oz. Good as light duty tumbling or exercise mats as well.
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24668 SLEEPING PAD |
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