Could synthetic biofuel replace crude oil?

The United States could do away with using crude oil altogether by using a combination of coal, natural gas and synthetic fuel made from non-food crops.

iPhone 5 'costs Apple $207'

The iPhone 5 is costing Apple more to build than any model since the very first - but still hundreds of dollars less than the retail price.

Broken iPhones cost billions in repairs

Damaged iPhones have cost Americans a whacking $5.9 billion for repairs, replacement and insurance deductibles since 2007, according to a study by warranty company SquareTrade.

Desalination could be made cheaper, says team

Desalination of seawater could be the best way to solve the world's water shortage, say Yale researchers, who have come up with ways to improve its efficiency.

Les Paul doodle cost world $268 million

Last week's Les Paul Google doodle cost the world $268 million, someone with a lot of time on his hands has calculated.

MIT battery could revolutionize electric cars

MIT reckons it's overcome one of the biggest barriers to the acceptance of electric cars - the time it takes recharging them - while at the same time halving the cost of batteries.

US senators in anti-piracy crackdown

A bipartisan group of US senators has introduced a bill that would grant the Justice Department additional powers to shutter websites offering pirated music and movies.