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- Force & Motion
Constant Motion Machine
- The constant motion machine moves with a uniform speed in a straight line. The machine has a hook attached to its rear end and can pull dynamics carts to demonstrate the concept of vectors and velocity. Requires two AA batteries, not supplied with apparatus.
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- Electricity
Contact Key, Single
- Contact key with a spring arm, press knob, contact stud, and a connecting strip with two 4 mm terminals, on a plastic base of size 110 x 50 mm.
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- Physics
Convection in water Apparatus, Size 13×20 CM
- To show the convection of heat in a liquid. Comprising a rectangle of 18 mm glass tubing, with short funnel at top.
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- Physics
Convection Of Heat In Air Apparatus
- To show the convection of heat in air. Metal box, 230 x 75 x 75 mm, with sliding glass front and two detachable glass chimneys. Supplied without candles.
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- Optics
Convex Mirror
- Optically worked, back silvered, with a protective coating.
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- Physics
Crooke’s Radiometer
- Set of four mica vanes, with one side of each blackened, in a partially exhausted glass bulb, with stand.
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- Battery Holders, Electricity
D cell battery holder with fahnstock clips
- D cell battery holder with Fahnestock clips for easy connection. Made of unbreakable plastic. Curved sides help prevent the battery from falling out when it is upside down. Ages 7+
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- Battery Holders, Electricity
D Cell Battery Holder with leads
- D cell battery holder with 6" connector cords in red and black. Made of unbreakable plastic. Curved sides help prevent the battery from falling out when it is upside down. Ages 7+
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- Electricity
D Cell Battery Holder/Joiner
- Single D cell battery holder can be snapped together in parallel or series to extend capacity or voltage. Ages 7+.
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- Electricity
DC Generator
- This handheld D.C generator is an excellent alternative to more expensive models. It is an ideal tool for demonstrating this transformation of mechanical energy into electrical energy. This unit produces a terminal voltage of 6.3V and a maximum current output of 1.2A. Comes with two 15" leads. Ages 7+
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- Electricity
DC Motor Kit
- A simple kit for students to gain insight into field poles, armatures and switches, Kit includes one mounting base, field pole, armature, two wire brushes, a piece of copper wire, two shaft supports, a AA battery holder, AA battery, and 4 each of screws and nuts. With assembly instructions.
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- Electricity
Decade Resistance Box
- Consists of six rotary switches in decade sequence mounted on a metal panel with each value clearly marked. From 0 to 1, 111, 110 x 1 ohm, Accuracy within + 0.5% Two universal binding posts are provided for easy connection.
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