
Light emitting diodes. Solid state devices that provide the ubiquitous power and indicator lights on your electronic gadgetry. Unlike lamps, there are no filaments that glow. Rather, some two volts of DC power at a miniscule 10 to 20 milliamps of current get the chemistry excited, and they just plain emit. Emit is a good word, too, as they don't really cast light, but glow brightly. We have a nice assortment of 3 and 5 MM diameter sizes in red, green, orange, and yellow. The longer lead is always positive, the shorter always negative, and you always need a current limiting resistor (about 500 to 1,000 ohms for 5 to 9 volt DC sources) to keep the current in the 10-20 MA range. If that's Greek to you you're either going to blow a lot of LED's or learn to change incandescent indicator lamps ! !
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6796 LED ASSORTMENT |
More fun for the easily amused! A very stylish 3-1/2" x 5-1/4" clear acrylic panel, less that 1/2" thick has two flattened hourglass chambers within it. Both have non-toxic fluids and suspended in one are black grains that are heavier than the liquid. In the other are colored grains that are lighter. Flip the works from one black plastic end to the other and the grains slowly do their things, black down, colored up, over maybe a five minute period. Very soothing. We'll pick your color from neon red, orange, chartreuse and magenta.
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91377 DBLE SAND TIMER |
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 |
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Wind this up and you'll have the world at your feet -- or at least spinning on your finger. The 4-3/4" tall plastic desk toy has a globe atop a flesh-colored plastic hand with the index finger extended, and a red base that covers a small manual pencil sharpener. For dull days.
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34191 GLOBE SHARPENER |
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 |
And extremely detailed. These classroom anatomical posters from Lippincot Williams and Wilkins are full color on heavy coated stock, and of very high quality. They're all 26" high x 20" wide.
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88402 POSTER, BRAIN | |
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88405 POSTER, DIGESTIVE | |
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88407 POSTER, EAR | |
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88404 POSTER, EYE | |
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88401 POSTER, HEART | |
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88398 POSTER, MUSCULAR | |
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88400 POSTER, NERVES | |
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88397 POSTER, SKELETAL | |
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88403 POSTER, TEETH | |
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88399 POSTER, VASCULAR |
Cheaper -- a whole lot cheaper -- than hiring a guide, plus these fit in your pocket (which is only true of the tiniest human guides). These hunting and fishing helpers are written and illustrated by professionals and are dense with information and step-by-step, full-color instructions for deer and duck hunters and fisherpersons. They're printed on heavy laminated 8-1/2" x 11" stock folded to a pocket-sized 4-1/4" x 5-1/2". The series includes how to site and work a deer stand; place your shot effectively and safely; field dress and quarter a deer; identify diving and puddle ducks; cast for and trigger bass; work with minnow rigs; identify trout, salmon and catfish -- plus how to stay alive and stop the bleeding when things go a touch wrong. Original retail price of each was $4.95.
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36934 BASS CASTING | |
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36941 CATFISH ID | |
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36930 DEER STANDS | |
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36931 DIVING DUCK ID | |
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36932 FIELD DRESS DEER | |
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36933 FISHING FIRST AID | |
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36935 MINNOW RIGS | |
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36936 PUDDLE DUCK ID | |
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36937 QUARTERING DEER | |
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36938 SHOT PLACEMENT | |
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36939 TRIGGERING BASS | |
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36940 TROUT/SALMON ID |
Assembled in the U.S. from Russian parts, anyway. What we have here is a gas mask for children, although frankly, the smallest of them are really more Yorkshire-terrier sized. New, but surplus, and while they're rated NBC for nuclear/biological/chemical contaminants, they carry absolutely no guarantees. These are to be used as part of a collection, or for costume/novelty purposes. These adult masks come with an integrated, screw-on filter canister, carrying pouch, and (6) plastic eye-lens covers. The medium ones are for adults with a facial circumference (measure around the crown of the head and under the chin) between 25” and 25-3/4”.
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37223 ADULT GAS MASK, MEDIUM |
Straight from the hand of Nature, and Scott Resources, comes this boxed collection of (15) 1" to 1-1/2" fluorescent mineral specimens, such as hackmanite, turritella agate, aragonite, travertine, willemite, resinous coal, selenite gypsum, fluorite, calcite, scapolite var. Wernerite and fossil algae. All are very interesting, and a few colors really pop under ordinary blacklight -- but we have to admit that today's fluorescent paints and laser shows have spoiled us for the more subtle glow of a rock. Buy these for their educational value, not their dramatic display.
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93007 FLUOR MINERALS |
If they saw this color map eight times a day, they'd know where every place is-and its capital. Snap this tough, 8.5" x 11" laminated sheet into a school notebook and eventually they'll have to read it. It's a very nice world map with capital cities on one side, a U.S. map with state capitals on the other. It includes other major cities plus partial Canadian and Mexican bonus areas. Current, barring a coup since we got our latest shipment.
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91766 U.S. MAP |
For hanging onto keys, not mountains. You'll get half a dozen in purple and/or red plastic. They're 3" long x 2" wide at their widest, and each has a 1" dia slip ring on it.
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37783 CARABINER |
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