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Energy from Hot Rocks
How to get energy from hot rocks. Some of the issues with, but also benefits of, the alternative energy. Also on the programme: biotechnologists in Thailand want to give female shrimps a helping hand and a criticism of modern zoos.
Presenter: Annette Mackenzie.
Βι¶ΉΤΌΕΔ World Service Archive
This programme was restored as part of the World Service archive project
