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Hula Dancer
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
Everyone knows A.S.&S. carries science and nature stuff. In this case, we are told the science is how she wiggles, and the nature is her faux grass skirt. A 7" maiden in a bright green grass skirt has a hidden spring at a private location. Press her on to the dashboard of your car (double sided tape included) and she will dance when you cross the railroad tracks. (Don't blame Editorial for this item, we only write up what Purchasing buys.)
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91270 HULA DANCER |
Thermal Sensor
Heat switch that is normally open below 135° F and closes at higher temperature. Imagination is the limit here. We don't have formal electrical ratings but believe it can handle about 2 Amps @ 120 VAC. It can be used (perhaps with a relay) to trigger a fire alarm when mounted near a furnace, in a garage, or in an attic. How about using it to shut off electronics or motors when overheating occurs? Or to activate a fan for cooling? Use it to record how long the furnace is on to rate its efficiency. 5/8" dia x 3/8" sensor head with (2) 1/4" x 1-5/8" long fixed leads.
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25813 HEAT SWITCH, 135DEG F |
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World Dimmers
Okay, polarizing filters for the literal minded. Each filter is a 20 mm dia x 2 mm think piece of glass with a couple of tiny slots in the edge. Each has 20% transmission by itself, which may not sound like much, but is about what you get through decent sunglasses. We are selling a pair so you can do experiments on transmission as you rotate one against the other to reduce the light getting through virtually to nothing. Or you can make some very cool granny sun glasses if that turns you on. The big guys get upwards of $7.00 per filter for these dudes!! Isn't surplus cool??
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26970 POLARIZING FILTERS |
Luminous Paint
This 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!
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20076 YEL/GRN PAINT, 2 OZ |
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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 |
First Surface Mirrors
Optical imaging folk insist that their reflective surfaces be on top of the glass, because an optically minor “ghost” is created with back surface mirrors. These “First Surface” optical mirrors generally also have better glass and flatter surfaces than their household brethren. Delicate, with the fragile reflective surface exposed, they carry the prices that precision demands. If you are playing with lasers, photography or optical alignment, the first surface items below are what you need. Dimensions are included in the description as width x length x thickness, all in mm.
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69134 FS MIRR., 1.5X1.5X1 | |
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4112 MIRROR, FS, 77 X 194 X 3 |
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Do Not (Fill In The Blank)
We know there's a message in this 12" dia safety sign with the classic slashed circle. It's red and white on reflective, adhesive-backed vinyl, and the graphics mean "Do not put out fire with liquids." Given its limited application, we're more excited about cutting out the white sections and putting the red circle/slash over a photo of our least favorite politician. But hey, if you're on the safety committee, knock your socks off. Just make sure the sign isn't hung upside down. Then it says "Do not let fire rain into your coffee."
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19507 SAFETY SIGN |
Brain Benders
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
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 |
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Phone Line Filter
This 7-foot length of standard 4-wire gray telephone cord has a modular plug on each end and an in-line 1-1/2" x 1" dia RF filter at one end. 'Nuff said.
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34424 RF FILTER |
Ceramic Reefers
Beautiful refrigerator magnets, all set to be imbedded in your child's best ever creation for refrigerator work. Six file card holding power, 3/4" dia x 3/16" thick ceramic with beveled edges to minimize chipping. They don't come much better than that!!
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89444 CERAMIC MAGNET, 3/4" |
Mighty Micro Magnet
Absurd strength in this rare earth magnet proves once again that size doesn't matter. Half the size of your pinky nail, the 3/16" x 3/8" x .05" thick magnets can lift 7 oz. of steel and are polarized on their ends not on their flat sides. It's .5 grams and strongest on its ends. Great for use with reed switches. Very, very bad to have around credit cards.
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32436 MICROMAGNET |
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