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	PROGRAMME INFO

	Tuesday 15:00-15:30


	Richard Daniel chairs the interactive environmental programme in which he and his guests deal with listeners' questions and concerns. Call 0370 010 0400 home.planet@bbc.co.uk 成人快手 Planet, PO Box 3096, Brighton BN1 1PL


	LISTEN AGAIN 30 min


	Listen to 1 July 2008


	PRESENTER

	RICHARD DANIEL




	"成人快手 Planet, the programme that tackles your queries about the world we inhabit and our interaction with it. From astronomy to geology, biology to environmental science. You set the agenda and our panel of scientists and conservationists come up with the answers." Richard Daniel


	PROGRAMME DETAILS

	Tuesday 1 July 2008



Panel This week's guests: from the Institute of Astronomy at the University of Cambridge. Head of Science and Policy for the British Geological Survey in Europe from the School of Oriental and African Studies University of London TOPICS Sichuan Earthquake Following the devastating earthquake in China in May 2008, a listener contacted 成人快手 Planet to say that she was puzzled by the number of earthquakes in this part of the world because it appears to be in the middle of a tectonic plate and not on the edge of one. Nick Riley explained that parts of China are very susceptible to seismological events because of the lateral stresses exerted by the Great India plate hitting the Eurasian plate. The former is travelling northwards at about 5cms per year and continues to push the Himalayas higher. Useful links For a detailed analysis see the Heat in the atmosphere Why is it that the closer we get to the sun the hotter it gets, but the higher we go on earth (even in full view of the sun) the cooler it is? The answer is simple - but the science less so! Earth's atmospheric pressure promotes adiabatic cooling whereas, in the vacuum of space, heat behaves as we would imagine it would through solar radiation (i.e. the closer you are to the source of the heat - the hotter it is). Useful links Hydrogen Sulphide The panel discussed why this dangerous chemical compound occurs in oil wells, how dangerous it is to the oil extraction process and whether or not it could be used in energy generation. Useful links Hydrogen Sulphide and the Permian Extinction Big Bang A listener asks how light can be used to look back in time to the origins of the universe. Useful links Contact 成人快手 Planet Send your comments and questions for future programmes to: 成人快手 Planet 成人快手 Radio 4 PO Box 3096 Brighton BN1 1PL Or email the programme: home.planet@bbc.co.uk Or telephone the Audience Line 03700 100 400 成人快手 Planet is a Pier Production and is produced by Toby Murcott. The personal information you provide will be held by the 成人快手 and by Pier Productions Ltd, the independent production company which makes 成人快手 Planet. Your information will be used for the purpose of creating the 成人快手 Planet programme, and will be processed in accordance with the Data Protection Act 1998. For more details on how the 成人快手 deals with your information, please see the 成人快手鈥檚 at










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