If you cut open a nanotube and roll it out flat, you get a sheet of carbon-graphite one molecule thick, referred to as ‘graphene’. Research at the UK’s University of Manchester shows that graphene sheets act like a metal, but a metal with properties governed by quantum physics. For instance, they can be used to filter electrons according to their quantum spin, opening the door on the elusive ‘spintronics’ computation models.

Add to the list of territorial disputes that seem rather silly to an outsider this one: South Korea has threatened a “physical clash” if Japan continues a sea-floor survey near the disputed islands of Dokdo/Takeshima. Note that these islands are so small they can only be visited when the seas are low.

The current high oil prices do not seem to be a result of supply constraints, but instead are driven by investments in the oil sector. In other words, there’s a big demand for oil futures not because there’s not enough supply of oil to supply future demands, but because investors think supply constraints and demand growth will make the price of oil higher in the future. It’s a beautiful self-fulfilling prophecy.

Gannon Technologies is developing a technology that can determine whether multiple handwriting samples were penned by the same hand with very high accuracy.

The debate about the amount of water currently on Mars still rages on. But new mineralogical evidence from the Mars Express probe is suggesting it was certainly wet in the past, and went through three successive ‘epochs’, with water presence declining as time passes.