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...physics behind this technology, gives a simple introduction to wavelengths and looks back to the discovery of electromagnetism and the invention of radio. To demonstrate just how vital waves are, the two captains turn off their modern communication tools and try traditional methods of keeping in touch. In addition, two bonus video tracks explore Newton's laws of motion...

...Physical vapour deposition (PVD)' - see article ] Sputtering Variations of process include reactive sputtering, diode sputtering, high energy sputtering and magnetron sputtering. [Images to demonstrate 'Physical vapour deposition (PVD)' - see article ] Ion plating Variations of process include reactive ion plating (RIP), chemical ion plating (CIP) and gasless ion plating...

...physical resources. This album explores the occurrence, availability, exploitation and sustainability of rocks and minerals. The two video tracks feature Thrislington and Divithill quarries in the north of England. Quarry and road construction managers talk about extraction and road laying processes, bulk aggregate transportation and ways to limit the impact of quarries...

...physical resources: origin, use and environmental impact... Earth's physical resources: renewable energy An introduction to this album. Wind power in Europe Which European country has the best wind resource, and which has the most turbines? Wind power in England The story of Kirkheaton wind farm, run by Northern Electric and AMEC Border Wind. Wind power in Wales The story...

...physical resources: origin, use and environmental impact... Fossil Fuels An an introduction to this album Declining Oil and Gas Reserves How long have we got before all the Earth's fossil fuels are depleted? What will happen to gas prices when the North Sea gas reserves are gone? The Future of Energy The next century will see massive change in sea levels and increased...