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Endless Time

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.

91377 DBLE SAND TIMER
$9.95 EACH
 

Tornado Tube

Simple, yet clever 1" dia. by 3" long plastic device to demonstrate the vortex effect of a tornado. Partially fill with water one of the two half-gallon size plastic soda bottles which you supply. Screw the bottles into opposite ends of the tube which we supply. Tip so the full bottle is on top and give it a circular starting whirl. Presto! You have a vortex. Call it a tornado if you're a meteorologist, a Charybdis if you're a classicist, or a whirlpool if you're into oceanography. Lots of fun and a fine opportunity to attempt to explain the effects of the earth's rotation on water draining out of a bathtub. The phenomena are related we're told, but good luck!!

6667 TORNADO TUBE
$2.95 EACH

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Luminous Paint

Nontoxic, water–reducible acrylic–based paint sticks to most surfaces and glows in the dark after only a brief exposure to bright ambient light. We have a 2 oz bottle of yellow/green that will glow for up to 20 hours. This works great for Halloween costumes and hobby applications, and glows like crazy under blacklight. And without a single radionuclide! Amazing!

20076 YEL/GRN PAINT, 2 OZ
$7.50 EACH

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Burner Stands

Three-legged steel stands for cooking above burners in the lab. The small unit stands 6" tall with a 2–1/4" ID (3–1/4" OD) burner ring. The large one stands 9" tall with a 3–1/4" ID (4–1/2" OD) burner ring. Legs are 1/4" wide chromed steel and angle outward slightly. Burner rings have a grey baked enamel finish. Legs screw into burner rings and have adjusting nuts. Sturdy construction.

89735 BURNER STAND, 6"
$5.95 EACH
89736 BURNER STAND, 9"
$7.25 EACH
 

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.

88987 BEAKER, 1000ML
$7.95 EACH
92611 BEAKER, 2000ML
$14.95 EACH
88985 BEAKER, 250ML
$3.75 EACH
88984 BEAKER, 50ML
$2.50 EACH
88986 BEAKER, 600ML
$5.50 EACH
88993 ERLEN FLASK, 500ML
$6.50 EACH
88992 ERLEN. FLASK, 250ML
$4.95 EACH
88991 ERLEN. FLASK, 50 ML
$2.95 EACH
88989 GRADUATED CYL. 100ML
$6.75 EACH
88988 GRADUATED CYL. 10ML
$2.95 EACH
88990 GRADUATED CYL. 250ML
$8.95 EACH
88995 TEST TUBE, 13X100MM
$3.25 PKG(8)
88996 TEST TUBE, 16X150MM
$2.95 PKG(5)
88997 TEST TUBE, 20X150MM
$3.25 PKG(3)
92614 TEST TUBE, 25X150MM
$4.95 PKG(3)
 

Mylar Warmth

They have the look of something designed for the space program. They're mylar, a paper-thin shiny metallic sheet, that comes in handy when your car breaks down in winter, or when you're separated from your climbing group on the slopes of Mt. McKinley. Barring that, they're also a perfect material for a do-it-yourself cold-climate Halloween costume-near impossible to rip by hand, but cut easily with scissors. There's no padding, so they wouldn't be too comfy on your bed, but they sure are warm. They both come folded about the size of a wallet. The Blanket is 52" x 82", the Sleeping Bag is 34" x 84".

91007 EMERGENCY BLANKET
$2.50 EACH
91432 MYLAR SLEEPING BAG
$5.50 EACH

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Plastic Graduates

The Graduate devotee knows the importance of plastic. To fill the need we offer these fine cylinders of the hard milky white polypropylene persuasion, to help you measure out your chemicals. With a large bases for stability and spouts for pouring, they are just like their glass cousins, except these are cheaper and not heat-resistant (each is marked 20° C ?!). The graduation increments and total volume are shown as increment/total in milliliters.

91175 PLAS. GRAD., 0.2/10ML
$1.50 EACH
91176 PLAS. GRAD., 1/50ML
$2.95 EACH
91177 PLAS. GRAD., 2/250ML
$4.25 EACH
91178 PLAS.GRAD., 10/1000ML
$8.95 EACH

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Dancing Fools

Dancing Fools

Tug the strings (with a wooden ball) and make these painted wood puppets dance. You get a scarecrow, witch and cat in the spirit of Halloween. Pullstring puppets are about 5" tall and dangle from a loop of string. Hang them from your rear-view mirror when the charm wears off. Our each includes all (3) characters.

32365 HALLOWEEN PUPPETS
$0.75 EACH

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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.

24668 SLEEPING PAD
$6.95 EACH

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Spectroscope

Good value hand held plastic spectroscope. It uses a diffraction grating to create the spectrum against a small measurement scale. (Hold it a couple of inches away from your eye for best results.) Fine for introductory science and demonstrating principles, and general observation, but not a precision instrument. Comes with simple instructions and explanatory write up.

91595 SPECTROSCOPE
$8.95 EACH

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Love Meter

AKA hand boiler. An exotic bit of hand blown glass with a bulb at top and bottom connected by some zippy tubing that spirals, loops, and/or jogs. In the closed system is some colored liquid (methyl chloride) that is very light. Hold the lower bulb in you hand and as the air in the system is warmed it pushes the fluid through the loops to the upper chamber. When all the liquid is pushed out of the lower bulb, expanding air will bubble through the tubing making it appear that the liquid is boiling. WARNING! The glass is fragile and the liquid is nasty. If you drop the thing on e.g. the kitchen tile, it will eat the finish off the tile and the stain in the liquid will permanently stain the floor. So don't let kids handle this item unsupervised. About 7" tall, it is a favorite in our stores.

6199 LOVE METER
$3.95 EACH

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