A traditional demonstration apparatus brought up to date, it consists of two plastic hemispheres with an effective O-ring seal and 6mm plastic valve. When evacuated a force in excess of 1400N is required to separate them. The can be evacuated with Hand Operated Pump B8A78931.

To determine the value of ‘g’ by timing the fall of a steel ball.

The release unit consists of a plate 90 x 45 x 3mm carrying a pair of metal clips connected to 4mm sockets. The clips are opened, thus dropping the ball and breaking the contact between the clips.

The trip unit is...

An ideal solution to the common physics experiment demonstrating that sound will not travel in a vacuum.

Place the bell jar on the pump plate, briefly connect the power supply. The bell can be heard ringing. Connect the vacuum pump to the pump plate and evacuate as much air as possible. Cl...

Motion QED is a popular self-contained unit designed to store and calculate times, speeds and accelerations.

Specification:

Event Timer: From 2 to 8 readings, timing each event.

Interval Timing: From 1 to 4 readings: up to 4 successive obstructions on any combina...

The Fast Timer is a versatile, portable instrument for timing brief events with two ranges: 1 to 999.9ms and 1 to 9999μs. The inputs can be controlled by light gates, microphones or mechanical switches, connected via 4mm sockets. Two sockets provide 0 and 5V for connection to sensors if re...

Based on our exclusive Motion QED unit the kit contains: one Motion QED unit, one Master Light Gate and one Slave Light Gate. Up to eight transitions of the light gates can be sensed and the times stored by the Motion QED unit.

For connection to Motion QED only. As above except both power and signal are carried by a single DIN lead. A further DIN lead connects the master light gate to a slave light gate. The 2 DIN leads included in the kit replace the need for eight 4mm leads, carrying both signal and power.