29 results found for electricity

View Grid List
Sort A-Z By date
00:03:00

Piezoelectricity

by Jonathan Hare
Piezoelectricity
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1941 views
Rating:

Some minerals such as quartz can produce electricity simply by squeezing or bending them - these are called piezoelectric crystals. Here is a simple and cheap demonstration you can do.

More details | Watch now
00:14:00

The Forces of Nature

by Brian Cox
The Forces of Nature
for 18-22 and upwards,
Lectures | 18-22 and upwards | 15 years ago | 1511 views
Rating:

Can everything that happens in the universe be explained in terms of just three forces? Particle Physicist Brian Cox talks us through the history of our scientific understanding, revealing why scientists have come to believe this. Brian explores the ....

More details | Watch now
01:00:00

Nuclear Power Plant Safety – What’s the Problem?

by John Collier
Nuclear Power Plant Safety – What’s the Problem?
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1699 views
Rating:

A significant proportion of our electricity is generated by thermonuclear reactions. The dangers attached to these processes and the radioactive products are well known and publicised. Much less well known are the measures taken to ensure that the hi....

More details | Watch now
00:59:00

Nanotubes: The Materials of the 21st Century

by Sumio Iijima
Nanotubes: The Materials of the 21st Century
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1391 views
Rating:

Carbon nanotubes, some 1000 times smaller than conventional carbon fibers, have tensile strengths 100x that of steel and conduct electricity like metals. They promise a revolution in structural and electrical engineering.

More details | Watch now
00:59:00

Electricity, Magnetism and the Body

by Anthony Barker
Electricity, Magnetism and the Body
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1228 views
Rating:

The controlled ways that electricity and magnetism can stimulate the body are demonstrated and how the resulting responses can aid diagnosis discussed.

More details | Watch now

Items per page: