Optical Bench Wooden 1.5 Metre Age 4-5 Includes a giant poster to

Includes a giant poster to aid with the completion of the puzzle

8 x Foam Fliers

The demonstration is made up of two step up/down transformers that are used to transform the 12V ac from a school power supply to 115V (nominal)

Users can select the effective length of the tube by positioning the stopper and closing the gas tap

Optical Bench Wooden 1.5 Metre Age 4-5 Includes a giant poster toWooden baseboard 1. 6m x 140mm with a 1. 5m scale divided in mm plus 6 sliding moulded bases 100 x 50mm each with index line, brass pillar and locking screw. The following accessories are included: 1 12V, 24W S. B. C projection lamp with lead and 4mm plugs 1 white metal object screen 75mm in diameter with gauze 1 holder for lenses, 38mm diameter 1 white metal receiving screen, 100 x 75mm with a slot for squared paper screen on the reverse 1 object