Class Clips is changing
We will be introducing the new Knowledge and Learning Beta website over the coming months. Clips for use in the classroom are now available on your phone, tablet or PC.


Alternatively, you can still browse or search by keyword or clip number on this site.

Clip description Keywords
Digging a tunnel for high-speed trains
Digging a tunnel for high-speed trains

Duration: 05:59

In Switzerland the Gotthard Base Tunnel is being dug under the Alps for high-speed trains. The tunnel will also be used by rail shuttles, which will carry lorries across the Alps by train and take them off the roads.

 
Generating electricity by nuclear fusion
Generating electricity by nuclear fusion

Duration: 05:55

Engineers explain how nuclear fusion could provide us with energy for thousands of years with relatively little radioactive waste.

 
Generating electricity from wind power
Generating electricity from wind power

Duration: 05:39

Wind energy will help the UK to obtain 15% of its electricity from renewable sources by 2015. Engineers explain how a site is chosen and how a wind turbine works.

 

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