
You decide when you get a bag of these clear glass marbles. They've all got inner defects-air bubbles, mostly-and some have indented veins on the surface. That just means you're getting a selection of one-of-a-kinds. Most are 3/4" dia; some are a touch larger. (15) marbles per order.
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27494 GLASS MARBLE, 3/4" DIA |
Use it as a speaker, a contact microphone, or add an external signal and turn it into a buzzer. It's a 5/8" dia piezodisk in a 1-1/8" x 3/4" x 1/4" thick assembly, with a 1/8" hole for mounting. Spade connectors at the end of 32" long leads, followed by an RF filter. The leads are hardwired straight to the disk. Digisound S-HRH-V.
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27857 PIEZO SPEAKER |
In the old days labs, schools and hospitals sterilized and reused things. Nowadays, as part of cost reduction efforts they throw them away. In keeping with this trend, it is no longer possible to get regular scalpels for modelers and home scientists to use for modeling and science projects. But we have gotten some good old fashioned scalpel type blades mounted in plastic handles. They are not sterile and not suitable for medical use. But with care, they are reusable in the home environment. And item for item they are cheaper than the old type, so you may be able to break even on the venture if you use them enough. We suggest that you stock up, however, so that you have a replacement handy if one breaks, the way you used to do with blades. 6" Long OA, they come with snap off blade shields.
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89241 SCALPEL, #10 | |
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89243 SCALPEL, #11 |
A set of (5) needle files, 5-1/2" long, which are coated with industrial diamonds. Perfect for sharpening tools, or doing filing on hard metals etc. when you are sculpting or welding. The shapes are the usual assortment of flat, round and in between shapes.
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89397 DIAMOND FILES |
Neon strip cardboard spectacles with diffraction gratings as the lenses. You can see the regular world, but all light sources and bright objects appear in multiple rainbow hued images. The effect is a little as though the whole world were a giant hologram. Great stocking stuffer or birthday party item for grade school ages.
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88867 DIFFRACTION GLASSES |
A box of illusions: make big objects look small, and small objects look big; change black and white into color; turn drawings into old-style movies - just for starters. You get a motorized zoetrope/spinner with discs and strips, and a really amazing "altered perspective chamber," along with directions for a dozen optical activities. It's really mind-bending - but don't forget to buy (2) "AA" batteries for the zoetrope. Spinning it by hand just doesn't work as well! For ages 8 to adult.
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91773 OPTICAL ILLUSIONS |
Rock hammer with one square chipping face and one pointy picking face. Steel head and shank, molded rubber grip. Taiwanese. 1 ft. long x 6" across the head 1-1/2 lbs. Well made. Good buy. Good bye!
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88055 ROCK HAMMER |
We love these! You're going to love these! Your kids are going to love these! Hundreds of clear marble-sized bubbles can cover the floor, cling to the sides of furniture, land on your arm. They float enchantingly, rising on air currents you can't even feel. After a few seconds, the bubbles are hard enough to catch or stack. Some will still be perched in out-of-the-way spots a day later. Touchabubbles goop, thicker than the bubble-blowing liquid you're familiar with, comes in a 4" plastic test tube with a wand built into the cap, and a clip on the side so you can carry it in a shirt pocket. The goop is nontoxic, but it tastes really bad, and you probably won't want these landing on expensive tabletops, so kids under 8 should have adult help with them. They should be sharing the fun anyway!
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91812 TOUCHABUBBLES |
Black and white sand in a viscous colored fluid. The sand and fluid are between 5-1/2" wide x 3-1/2" high panes of glass, framed on a gimbaled stand. Flip the panel and watch the sand swirl and eddy into endlessly new pictures of dunes, drifts, mountains or moonscapes, depending on your imagination and the pattern they form. The mix of black and white creates a definite third dimension to the images. Pretty neat, as these things go.
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88881 MOVING SAND PICTURE |
Maybe a little eclectic for an artist with a single style, but perfect for one who's still searching for himself. Or for any hobbyist. There are no (2) brushes exactly alike in this set of (15). They all have natural bristles, color-coded wooden handles and metal ferrules, but they range from fairly fine to 1/2" wide, and 7" to 10" long. There are at least (3) different kinds of bristles, and they are round, blunt and pointed. A nice variety, and a very nice quality for this price.
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91856 ARTIST'S BRUSH SET |
Did 'ja ever wonder why these little brushes are called "Acid brushes"? Why don't they call them "Steel handled brushes." And why are the handles 1/4" dia rolled metal?? And why are they No. 1?? Why not 6", which is what they are, including 3/4" of bristles. Our man in France says the brushes are used to apply an acidic liquid flux to articles that are to be soldered together. So now we know.
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20777 ACID BRUSH |
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