All posts by Paul Raven

Martian Gullies Not Made By Water After All?

THE Mars Global Surveyor, back in 2000, detected gullies that some scientists believed were created by liquid water flowing on the surface in the recent history of the planet (for ‘recent’, read ‘last million years’). Gwendolyn Bart, a graduate student in planetary sciences at the University of Arizona, thinks that they may in fact be due to landslides caused by wind and asteroid strikes, having found evidence that the thoroughly water-free Lunar landscape has similar features.

The Plastic Electronic Revolution

A joint UK-US team of researchers claim to have created a new type of organic polymer which could supercede silicon compounds as the standard material for making certain types of electronic system. The major edge it has over silicon is that it can be manufactured at low temperatures with little waste. It could also be ‘printed’ as a fluid using conventional inkjet technologies, putting an end to expensive and error-prone lithography techniques and enabling it to be used on flexible substrates. Maybe ‘electronic paper’ won’t be vapourware forever.