Material: Cold weather, African self-sufficiency, Maple seed flight, Red dwarfs; 02 Dec 10
This week on Material World, we find out why some places in the UK are particularly cold. What makes these \u2018frost hollows\u2019 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.\n\nA 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.\n\nAnd many, many more stars in the sky than we thought.