Researchers at the University of Nevada-Reno claim that waste coffee grounds can provide a cheap, abundant, and environmentally-friendly source of biodiesel fuel for cars and trucks.

The major barrier to wider use of biodiesel fuel is lack of a low-cost, high-quality source, or feedstock.

Spent coffee grounds contain between 11 and 20 per cent oil by weight - about as much as traditional biodiesel feedstocks such as rapeseed, palm, and soya bean oil.

Sonic UnleashedPlatforms:Xbox 360, PlayStation 3, Wii, DS, PS2
Publisher:Sega
UK Price (as reviewed):£39.99 (inc. VAT)
US Price (as reviewed):$46.99 (inc. Tax)

This is a written review and not one of those fancy video reviews, so you’ll have to just imagine my disapproving tone when I ask: ‘Sega, Sega, Sega – what have you done to Sonic?'

There was a time, long ago, when Sonic the Hedgehog

Castlevania: Order of EcclesiaPlatform: Nintendo DS
Publisher:Konami
UK Price (as reviewed):£24.99 (inc. VAT)
US Price (as reviewed):$27.99 (inc. Tax)

There are few games that are as long-running and widely respected as the Castlevania games. Ever since the first instalment, the weird clash of RPG and platforming mechanics has made the series instantly recognisable and massively appreciated.

And the latest title,