Material: Cold weather, African self-sufficiency, Maple seed flight, Red dwarfs; 02 Dec 10

Summary: This week on Material World, we find out why some places in the UK are particularly cold. What makes these ‘frost hollows’ so much colder than their surrounding regions. Could Africa feed itself within a generation, apparently it could according to a leading figure in the field of international development. A new flying vehicle based on the maple seed has been developed by students in the US. The new invention could be used to map remote canyons on Earth and Mars, as well as gather atmospheric climate date for years at a time. And many, many more stars in the sky than we thought.