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Clip description Keywords
Bimetallic strips and heat transfer
Bimetallic strips and heat transfer

Duration: 00:40

A demonstration of how a bimetallic strip works.

 
Conduction of heat (pt 1/2)
Conduction of heat (pt 1/2)

Duration: 00:14

Why do cups made of metal and polystyrene seem to be at different temperatures even though they contain water at the same temperature?

 
Conduction of heat (pt 2/2)
Conduction of heat (pt 2/2)

Duration: 00:30

Further explanation of why a metal cup feels colder than a polystyrene cup even though they contain water at the same temperature.

 
Conduction, convection and radiation
Conduction, convection and radiation

Duration: 01:06

A glass of iced water in the sun is used to exemplify three types of thermal transfer.

 
Conduction, convection and radiation
Conduction, convection and radiation

Duration: 03:08

An explanation, with particle animations, of conduction, convection and radiation.

 
Convection and insulation
Convection and insulation

Duration: 01:36

A brief introduction to convection and a more detailed description of insulation.

 
Differences between heat and temperature
Differences between heat and temperature

Duration: 01:29

The difference between heat and temperature is examined using different amounts of water heated with the same energy.

 
Expansion of metal
Expansion of metal

Duration: 03:46

An investigation into the control of thermal expansion in the metal frame of a satellite and the testing of a special low-expansion metal called Invar.

 
Frying an egg with a paper pan
Frying an egg with a paper pan

Duration: 02:34

An egg is fried using an improvised pan made from newspaper, but why doesn't the paper catch fire?

 
Grants  to improve home insulation
Grants to improve home insulation

Duration: 02:40

Demand for home insulation in the East Midlands is at record levels as people cut costs. Some homes are eligible for a grant to improve insulation.

 
Heat energy transfer
Heat energy transfer

Duration: 01:06

An explanation of how heat energy always moves from hot to cold and how the energy is transferred.

 
Latent heat and changes of state
Latent heat and changes of state

Duration: 01:39

An explanation of latent heat energy. When substances change state, they either give out or take in heat energy.

 
Temperature and thermometers
Temperature and thermometers

Duration: 01:30

Two fixed points on a thermometer are defined using ice and boiling water.

 
The discovery of superconductivity
The discovery of superconductivity

Duration: 03:54

Jim Al-Khalili describes how Kamerlingh-Onnes' experimental work in cooling mercury led to John Bardeen's explanation of superconductivity.

 
Thermostats for temperature control
Thermostats for temperature control

Duration: 02:23

A thermostat is used to control the temperature of an incubator for hatching birds' eggs.

 
Why doesn’t glass heat up in a microwave?
Why doesn’t glass heat up in a microwave?

Duration: 02:57

A piece of glass is melted using a blowtorch and then placed in a microwave to show that liquids absorb the energy more effectively than solids.

 

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