
Porcelain mortars and pestles. Great heavy duty mortars, with sides that are easily 5/16" thick on the smaller ones, and up to 1/2" on the larger. The mortars are glazed outside, but rough inside, the better to grind, and have a pouring lip. The business ends of the pestles are unglazed, while the shafts are glazed. Very functional, very good looking!! So grind your own spices or lab concoctions as you prefer. You get a mortar and pestle as a single order.
| Mortar Dimensions | Pestle Length | |||
|---|---|---|---|---|
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88314 MORT & PEST, 130ML | 4" OD x 1-3/4" | 4-3/4" | |
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88909 MORT & PEST, 600ML | 6-1/2" OD x 2-15/16" | 6-3/16" |
What a price for a Sprague Rappaport stethoscope! And the improved model, at that! The 30" long stethoscope can be easily configured for (5) different functions, replacing other styles. It comes with (1) large and (1) small diaphragm, (3) different sizes of bell-type chestpieces, (3) sizes of eartips, and instructions for use. The interchangeable parts are in a compact, clear-plastic carrying case that fits into a pocket. Tubing will be assorted neon colors (our choice).
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92083 S/R STETHOSCOPE |
Way inside? Try our human X-rays. These are from Roylco® and are very useful for biology teachers, but with lots of other applications. Make a very easy oversized jigsaw puzzle or, with some super glue, a great shower curtain. But the real possibilities are for artists and designers: fold ’em into lampshades, blow them up or shrink them on a copier, or scan them and have fun in Photoshop™. You get the human skeletal system, a complete skeleton when assembled, in (18) sheets of various sizes, reprinted on transparencies which work with overhead projectors. Info sheets in English and French.
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92654 HUMAN X-RAYS |
Think of it as a shortcut to learning perspective. This clever 50-sheet pad of white, 7" x 4-1/2" paper has a fine red and blue grid pattern that shows your drawing and doodling in 3-D when you wear the included 3-D glasses. It's our candidate for the why-didn't-I-think-of-that award this year.
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93371 3-D PAD |
The world is your kaleidoscope with a teleidoscope, which is to say that instead of a bunch of little pieces of glass and beads in a rotating case, there's a lens at the other end, in this case a big, clear glass marble making lovely patterns based on whatever you point it at. (Try it on a printed page.) Measures 1" dia x 8-1/4" long. The cardboard tube is covered with diffraction paper for a cool look. Assorted colors
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90211 TELEIDOSCOPE |
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