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    Drilled Brass Ball, 19mm Diameter - PNBB19

    $7.65
    These drilled balls are excellent for use as pendulum bobs or in impact and collision experiments. All drilled balls feature 3mm countersunk holes so pendulum cord knots can be recessed.Additional...

    Drilled Cork Ball, 19mm Diameter - PNBCK19

    $4.30
    These drilled balls are excellent for use as pendulum bobs or in impact and collision experiments. All drilled balls feature 3mm countersunk holes so pendulum cord knots can be recessed.Additional...

    Newtonian Demonstrator - NWDM01

    $27.25
    Excellent for illustrating Newton's Third Law of Motion and the principle of Conservation of Momentum. The five polished metal balls with thin bifilar suspensions on a unique support design provide...

    Solid Brass Ball, W/ Hook, 25mm Dia - PNBB25-H

    $11.45
    These drilled balls are excellent for use as pendulum bobs or in impact and collision experiments. All drilled balls feature 3mm countersunk holes so pendulum cord knots can be recessed.Additional...

    Wheel & Axle - WAXL01

    $19.40
    This is a classic device for demonstrating mechanical advantage and the conservation of energy. It consists of a single stepped wheel with four coaxial steps of 35, 50, 65, and...

    Ballistics Car With Remote Trigger - BLCAR2

    $130.50
    This Ballistics Car demonstrates the independence of vertical and horizontal motions. It consists of a four-wheeled cart carrying a vertical tube with a spring-loaded piston inside. The tube is loaded...

    Hooked Aluminum Ball, 25mm Diameter - PNBA25-H

    $6.40
    These drilled balls are excellent for use as pendulum bobs or in impact and collision experiments. All drilled balls feature 3mm countersunk holes so pendulum cord knots can be recessed.Additional...

    Drilled Aluminum Ball, 25mm Diameter - PNBA25

    $6.10
    These drilled balls are excellent for use as pendulum bobs or in impact and collision experiments. All drilled balls feature 3mm countersunk holes so pendulum cord knots can be recessed.Additional...

    Drilled Aluminum Ball, 19mm Diameter - PNBA19

    $4.05
    These drilled balls are excellent for use as pendulum bobs or in impact and collision experiments. All drilled balls feature 3mm countersunk holes so pendulum cord knots can be recessed.Additional...

    Pulley Demonstration Set - PUDE01

    $240.00
    Use this convenient set to perform various pulley demonstrations. The durable 20cm x 15cm base is fitted with a capstan and a 61cm tall aluminum support rod. Also includes a...

    Ballistics Car - BLCAR1

    $80.25
    Push the cart and eject the steel ball from the spring-loaded barrel. The ball falls back into the barrel of the moving car, demonstrating that the forward motion of the...

    Bench Pulley With Clamp, Vertical - PULBN2

    $12.05
    Pulley with table clamp features a sturdy steel frame and a 50mm diameter plastic sheave. Clamp opens to 30mm.Additional Info: Pulley with table clamp features a sturdy steel frame and...

    Imapct Car - IMPACT1

    $20.80
    Sturdy plastic impact car features a graduated spring scale and a slide that is displaced on impact against an obstacle. Includes activity guide.Additional Info: Sturdy plastic impact car features a...

    Economy Inclined Plane - INPM01

    $33.10
    Economical version of the traditional wood inclined plane. 80cm long x 12cm wide. Made of medium-density fiberboard (MDF). Includes adjustable-angle pulley and a 14mm diameter cross hole for support rod.Additional...

    Inertia Demonstrator - IDEM01

    $28.65
    This durable inertia demonstrator works reliably every time and is a great improvement on traditional versions of this classic experiment. A steel ball rests on a thin metal card on...

    Single Tandem, 50mm Sheave - PTAN01

    $3.05
    Free-running tandem pulleys feature plastic sheaves, plated aluminum frames, and a hook at each end.Additional Info: Free-running tandem pulleys feature plastic sheaves, plated aluminum frames, and a hook at each...

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