Ledge-flow-controlled catalyst interface dynamics during Si nanowire growth
Despite the demonstration that nanowires can grow below the eutectic point, a clear understanding of how this happens has not been reached. Video-rate transmission electron microscopy brings new insight into the issue, showing in real time the growth of silicon nanowires with palladium catalysts.
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.
