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Listed under:  Science  >  Forces and energy  >  Heat
Video

Photonic Chip

This 12 minute video segment from Catalyst explains why photonics promises to remove bottlenecks and speed up the entire Internet by sending information with light rather than tardy little electrons. An excellent source of information on the current science for students of information systems.

Video

Earthshine

This six and a half minute video segment from Catalyst explains Earthshine as light from our own Earth reflected back from the Moon's dark side. A PhD student is studying it to learn about how light reflects from a planet that contains liquid water as well as land. Her work may one day lead to the discovery of other planets ...

Video

Very Large Telescope

This 10 minute video segment from Catalyst explains why the telescope is located where it is and relates it to the properties of light.

Video

Expansion and Contraction

This is a problem-solving activity in which students are engaged in a challenge is to control virtual bridges using expansion and contraction so that a car can pass over them. In so doing they learn about the expansion of solids, liquids and gases when heated is applied. Students need to understand how a bimetallic strip works.

Video

Solar Prints

This 6 minute video segment from Catalyst is an excellent introduction to the science behind photovoltaics. A useful comparison of the efficiency of energy conversion. Discussion of other issues considered in producing devices to use renewable energy to make electricity.