Goodbye Jet Engine?
A futuristic electric aircraft with no motors that powers itself through ion exchange
The 1960s concept of ‘Ionic Wind’ has been successfully put to the test in a new kind of electric airplane. The plane has no motors and uses the exchange of ions in the air to propel itself. Larger versions could carry goods and passengers and would produce far less pollution than conventional aircraft.
The death of the kilogram. The ancient lumps of metal that provided the standard measures. have been replaced with a mathematical formula that should not deteriorate over time.
Whale music, how Humpbacks learn new tunes.
How ancient teeth helped track the development of dairy farming. From the Vikings to the Mongols, the plaque on Bronze Age teeth reveals a milk based diet.
(Picture: The futuristic electric aircraft with no motors powered by ‘Ionic Wind’. Credit: Credit: Steven Barrett (MIT)
Presenter: Roland Pease
Producer: Julian Siddle
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- Thu 22 Nov 201820:32GMTBBC World Service Online, Americas and the Caribbean, UK DAB/Freeview, News Internet & Europe and the Middle East only
- Thu 22 Nov 201821:32GMTBBC World Service Australasia & East Asia only
- Fri 23 Nov 201805:32GMTBBC World Service Online, UK DAB/Freeview, News Internet & Europe and the Middle East only
- Fri 23 Nov 201806:32GMTBBC World Service Australasia, Americas and the Caribbean & South Asia only
- Fri 23 Nov 201807:32GMTBBC World Service East and Southern Africa & East Asia only
- Fri 23 Nov 201811:32GMTBBC World Service West and Central Africa
- Fri 23 Nov 201814:32GMTBBC World Service Australasia
- Fri 23 Nov 201818:32GMTBBC World Service East and Southern Africa, South Asia & West and Central Africa only
- Mon 26 Nov 201801:32GMTBBC World Service
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