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...Open University researcher Richard Greenwood (who lived closest) to check out the sample. Greenwood was overwhelmed to find that not only was it a meteorite, it was a very rare species. The UK had got lucky – we had a new member to add to our meteorite collection. [Main mass of the meteorite on the driveway where it fell] Main mass of the meteorite on the driveway where...

...Open University, Monica Grady, explores the issue. ...A small asteroid passed relatively close to Earth this month, having been discovered just six days earlier. This might sound scary, but it’s unusual that such an object would actually collide with the Earth. Each year about 50,000 tonnes of extraterrestrial material (rocks and dust) hits our planet. This comes as...

...open arc; submerged arc; shielded metal arc; plasma spray; plasma-transferred arc [Images to demonstrate 'Thermal spraying (Hardfacing)' - see article] Manufacture: An alternative to electroplating, electroless plating and surface hardening processes, used for repair and maintenance of components and to provide wear-, heat- and corrosion-resistance. Production parameters...