Lightning of 3,000,000 volts is demonstrated at a laboratory in Pennsylvania.
Surreal item examines numerous different forms of energy.
A look at diamonds and other precious and semiprecious stones.
A look inside an acoustic chamber where electrical sound equipment is tested.
Experiments are made to broadcast the sound of heartbeats and of a boy eating chocolate cake!
Diagrams illustrate how items stay buoyant.
A series of diagrams and film clips explain the principles of gravity.
A look at how magnets work.
Co-production with the BBC.
Short film about invention of answering machine - watch it to see how huge they were in the 50's.
This new device transmits information about abdominal ailments from the patient's stomach.
Film reminds us that transistor revolution of the 50's was as big as the microchip revolution of the 80's.
A demonstration of a new robot which can do many things including sing and dance.
An item on clocks and watches also visits the atomic clock at the National Physical Laboratory.