Jon Cartwright

Turning landfill into energy

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Landfill is both ugly and polluting. But a new breed of technology promises to make it a thing of the past, transforming a huge portion of landfill material into clean gas. It’s thanks to a process called gasification, which involves turning carbon-based materials into gas by heating them to a high temperature but without burning … Read more

Sun like it hot

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At the outermost edges of the sun's atmosphere the temperature rises to several million degrees Celsuis.

Few would be surprised to learn that the sun is very, very hot. At its surface, the temperature is several thousand degrees Celsius. But you might think that, like a fire, the temperature drops as you move away from the surface. In fact, way out in the sun’s corona (the outermost part of its atmosphere) … Read more