Items tagged with nanotubes

You'd think that speaker technology was pretty well disrupted, given that it has been around for about as long as any technology... ever. As it turns out, there's still more to be down. A new kind of headphone taps into the power of carbon nanotubes in order to deliver sounds, with a tiny internal speaker relying not on moving parts, but producing audio "through the thermoacoustic effect." According to a new report, the nanotube speakers could even hit a sweet spot in terms of pricing. Essentially, the new invention bypasses moving parts and instead relies on expansion and contraction of air to... Read more...
Graphene is a one atom thick piece of carbon, and its very efficient conductive properties and nano-scale size would make it really useful as a replacement for copper connections on computer chips. The graphite in your pencil is made of lots and lots of graphene. The trick has been to make it in the one atom thickness.  Saroj Nayak and other researchers at Rensselaer Institute have now done the research to show that the process of making graphene nanostructures is at least feasible. The size of computer chips has shrunk dramatically over the past decade, but has recently hit... Read more...