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"Build Your Own" KitsElectronic Educational Kits -- Telephone Kit AK-700: Learn how a telephone works. Comes complete with all parts and manual. Has the latest features such as automatic redial, mute and flashing neon lights when ringing. -- Stereo Tape Player Kit AK-200: This kit teaches about the basic mechanical and electronic circuits. Lesson includes magnetic reco... more |
"Classic" Long-Range Observation BinocularHighly rated by both Sky & Telescope and Astronomy Magazine -- Ideal for long range viewing in the sky or on land.The legendary Oberwerk, Long-Range Observation Binocular now with 100mm semi-apochromat triplet objectives (each objective is 4" in diameter), and fully broadband multi-coated optics is the ultimate optical instrument for terrestrial ob... more |
"Opposites Attract" T-ShirtThis T-shirt features a cartoon by Nick Kim that's a clever tribute to ionic chemistry. The caption reads: "Just what is it outside that window that you gentlemen find so attractive? |
"Sniff-It" AC Voltage DetectorSafe and simple way to locate breaks in wires, hot and neutral terminals in wall outlets, and trouble-shoot high-voltage circuits. This economical, non-contact voltage probe checks 50-600 volts AC. Audible and visual alerts. UL listed. 5-year warranty. |
'Hows and Whys of Science' KitFrom A to Z, this kit has it all! -- From astronomy to zoology, this comprehensive kit has everything a young scientist needs to explore how the universe works. This kit contains 100 experiments you can perform. -- Learn how to conduct experiments like the professionals with special laboratory instruments and materials including a telescope, beake... more |
00Board for Rogue Robots**Expandable, educational "robot brain" -- **Based on the OOPic(R) processor. -- The Rogue Robotics OOBoard (TM)--programmable in C, Java or BASIC syntax--allows you to control your robot using object oriented programming (OOP). -- To enable the "robot brain" to interact with attached hardware, most any virtual circuit can be created from a libr... more |
1.25 inch Barlowed LaserFor use with most Newtonian, Schmidt-Newtonian and Dobsonian models with 1.25" focusers -- This laser and the collimation process are based on a concept introduced by Nils Olof Carlin in an article he wrote for Sky & Telescope magazine in January 2003. Our barlowed laser achieves the accuracy of Cheshire sight tube collimation with the ease and sim... more |
1.25 inch Laser Collimator for 1.25" focusersFor use with most Newtonian, Schmidt-Newtonian and Dobsonian models with 1.25" focusers. -- Class IIIA laser diode is standard in this collimator. It is a 650 nm laser diode of less than 5 milliwatts. It is considered safe for consumer use, but you should avoid letting the beam enter your eye, directly or after reflection from a mirror. It is OKAY ... more |
1/3 Pound Bag of Genuine Mine RoughPan for Gold & Gems in Your Own Backyard -- Receive 1/3 lb. of mine rough (mine spoil and dirt, sprinkled with fools gold and real gem material). -- Comes complete with instructions and mineral information. Just pour a big handful of mine rough into a metal can or bucket, add water and swirl like a real prospector. -- Gold and heavier gem materia... more |
10 Mabuchi MotorsIdeal for school and engineering projects. -- This 6200 RPM motor measures 0.82" diameter x 1.05" long. The shaft is 0.08" diameter x 0.32" long. -- Operates on 1.5V at 200mA. Weighs 0.6 ounces. |
1001 Playthinks, Puzzles, Paradoxes.......Illusions and Games...."the most wide-ranging, visually appealing, entertaining, gigantic collection of brain teasers"..New York Times -- Open this amazing book to any one of its 400+ oversized pages and instantly youll be whisked off to a place you may never wish to return from. -- A place of riddles, puzzles, visual challenges, illusions, art... more |
10x to 40x Zoom Stereomicroscopes-- 3-Way Switch Provides a Range of Lighting for Industrial, Educational or Home Microscopy Uses -- -- Binocular and Trinocular Models -- -- Durable Construction -- -- 10x-40x Magnification -- -- 10x WF Eyepieces -- -- Zoom 1x-4x Objectives -- -- 5W Halogen Incident/5W Fluorescent Transmitted Illumination -- -- Rack and Pinion with slip clutc... more |
12 Large Specimens in NebanolIncludes 4"-5" clam, 4"-6" crayfish, 9"-12" earthworm, 3"-4" grassfrog, 7"-9" perch, 5"-6" starfish, 3/4" grantia, grasshopper, honeybee, hydra, 7"-9"fetal pig, and 7"-9" rat. |
12" Constellation GlobeTwo Unique and Different Views of the Night S |
