Spin control: New technique sorts nanotubes by length
(National Institute of Standards and Technology (NIST)) Researchers at NIST have reported a new technique to sort batches of carbon nanotubes by length using high-speed centrifuges. The technique should be easy to scale to industrial quantities for a variety of nanotube applications where length is an important factor.
Democrat Barack Obama's appeal to  centrist voters has further opened the door to Republican claims his message of change only applies to the positions he has taken in the past.
AP - Iran indicated Saturday that it has no plans to meet a key Western demand that it stop enriching uranium, a day after Tehran sent the European Union a response to an international offer of incentives for halting enrichment.
AP - The call girl involved in a scandal that brought down New York's former governor has dropped a lawsuit claiming "Girls Gone Wild" founder Joe Francis exploited her image and name on the Internet.
