The Free Science Fair
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To invent, you need a good imagination and a pile of junk. -- Thomas Edison
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Science Supplies from Edmund Scientifics
Engines, Motors & Gears
3 High Speed Science Fair DC Motors & 3 Fan Blades Kit 3 High Speed Science Fair DC Motors & 3 Fan Blades Kit
$7.95

Can be used as a mini cooling fan or as an engine for an air-powered project. -- A 4" propeller is mounted onto the motor which is mounted into a plastic housing. Motor operates between 1.5V to 9V, 0.7amps. Component colors may vary. Package of three motors and fans.

Click Here for more information or to order 3 High Speed Science Fair DC Motors & 3 Fan Blades Kit from Edmund Scientific's

Buggy Car Chassis Kit Buggy Car Chassis Kit
$19.95

Build a rugged wood chassis racing car. -- Destined to end up off the road, the Buggy Car Chassis is a wonderful introduction to coil-spring suspensions. The pre-built gear box has an adjustable speed setting for high and low speed output. -- Basic Specifications -- Motor: FA-130 -- Suspension: Coil spring -- Gear Box: Pre-built -- Features metal roll cage, steerable front wheels with suspension that really works! Selectable 2-speed gearbox, forward/stop/reverse. -- Requires 2 GÇ£AAGÇ¥ batteries (not included). -- Skill Level I.

Click Here for more information or to order Buggy Car Chassis Kit from Edmund Scientific's

Coffee Cup Stirling Engine Coffee Cup Stirling Engine
$139.95

Imagine the worldGÇÖs most efficient engine design running off the heat of your coffee mug. -- When the heat expands the air, the air pushes up on the piston. When the air cools, it contracts, pulling the piston down. This heating and cooling moves the piston, making the propeller turn. -- Made of metal parts with wood propeller. Available in both kit form (30825-19) and pre-assembled (30825-20).

Click Here for more information or to order Coffee Cup Stirling Engine from Edmund Scientific's

Gas Engine Model Kit Gas Engine Model Kit
$29.95

Not Your Average Model Engine! -- Build a working 4-cylinder model engine while learning about the four strokes of an internal combustion engine. -- With the Gas Engine Model Kit, you can watch the spark plugs fire and the valves open and close. There are over 100 plastic parts that easily screw together. -- Appropriate for ages 8 and older. Skill Level II. Powered by 2 GÇ£AAGÇ¥ batteries (not included).

Click Here for more information or to order Gas Engine Model Kit from Edmund Scientific's

Model E AC Synchronous Motor Model E AC Synchronous Motor
$59.95

This Industrial strength motor is equipped with a full metal gear train for durability and resiliance. The voltage, output, and rpm's are built to perform at full scale in heavy-duty applications or retrofits where additional torque is required. -- Pear-shaped in an impact-resistant case, the motor offers a wide range of output speeds and consistent torque rating of 400 inch-ounces at one RPM. Rotations are selectable between clockwise, counterclockwise, or non-directional for oscillating. -- Leads are 22 AWG (105 C), 6" long x -½F,1/2-+" strip, standard. 24 VAC, 120 VAC, 230 VAC, 50/60Hz. Output bearings: -½F,5/16-+" diameter x -½F,3/16-+" long, standard; -½F,3/8-+" diameter for -½F,1/4-+" diameter shaft.

Click Here for more information or to order Model E AC Synchronous Motor from Edmund Scientific's

Motor Generator, DC/AC Motor Generator, DC/AC
$125.95

Similar to the St. Louis Motor, but capable of DC and AC operation. -- May be operated as a magneto, series motor, shunt motor, series generator and shunt generator. -- Two permanent magnets and two electromagnets included. Base 3 1/2" L x 3 1/2" W; stands 3 1/2".

Click Here for more information or to order Motor Generator, DC/AC from Edmund Scientific's

Radio Controlled Car Kit Radio Controlled Car Kit
$39.95

No Soldering Required -- Learn by doing, as you build this R/C car from the ground up. This solderless kit will teach you all about gears, motors, RF frequency and more from the detailed assembly and training manual. Before you know it, you'll be ready to race! -- Completed car measures 8-1/2" long, has flashing top light and includes remote control unit. Requires 4 GÇ£AAGÇ¥ and 1 GÇ£9VGÇ¥ battery (not included). Skill Level I. -- For Ages 3+.

Click Here for more information or to order Radio Controlled Car Kit from Edmund Scientific's

Simplified Stirling Engine Simplified Stirling Engine
$19.95

The design and intent of this kit is to provide an inexpensive way to demonstrate the principles and mechanics involved in the operation of the Stirling Engine. -- Although based on 19th century technology, the Stirling still offers many opportunities for future use as an economical and environmentally sound power source. -- Includes all materials and instruction booklet with background information.

Click Here for more information or to order Simplified Stirling Engine from Edmund Scientific's

Smithsonian Jet Works Kit Smithsonian Jet Works Kit
$29.95

Build your very own engine using more than 50 parts! -- Learn the principles of flight while building a jet engine model with more than 50 parts. -- This incredible battery-operated model lets you control thrust, turbine speed and realistic jet sounds. -- Requires 4 "C" batteries, not included. Measures 12.5"Lx6.5"Wx7.5"H. Ages 8+ (Adult supervision is recommended.)

Click Here for more information or to order Smithsonian Jet Works Kit from Edmund Scientific's

Tracked Vehicle Chassis Kit Tracked Vehicle Chassis Kit
$19.95

Three-speed crank gearbox with gear ratios of 203.7:1 & 58.2:1 and forward & reverse controls. -- Requires 2 GÇ£AAGÇ¥ batteries (not included). Sturdy wood chassis. Instructions. For ages 12 & up. Skill Level I

Click Here for more information or to order Tracked Vehicle Chassis Kit from Edmund Scientific's

Worm Gear Box 216.1:1 and 336.1:1 Worm Gear Box 216.1:1 and 336.1:1
$14.95

The worm gear can produce extremely low speeds of rotation, and is used for gear reduction. -- The 2 selectable gear ratios are: 216.1:1 and 336.1:1, and allow versatile operation for your projects. -- The gear case is injection-molded and the gears are of polyacetyl resin for reducing mechanical noise. Operates at 4.5V DC. 15100 RPM.

Click Here for more information or to order Worm Gear Box 216.1:1 and 336.1:1 from Edmund Scientific's