PROGRESS: Scientists Made Lightning-Fast Graphene CPUs
Aug 22, 2013 12:56
Graphene. The magic material that has the power to make faster / fastest transistors ever. Scientists haven't figure that part out yet, but they've nonetheless taken a step to making graphene transistors work for real.
They aren't just fast. As an example, the speediest one to date clocks in 427GHz. The problem with them though is that they aren't good at turning off. In fact, they don't at all.
Guangxiong Liu and a team of researchers from University of California have come up with a practical solution for that. MIT's Technology Review explains:
[Liu and the team] rely on a different phenomenon called negative resistance to create transistor-like behaviour.
Negative resistance is the counterintuitive phenomenon in which a current entering a material causes the voltage across it to drop. Various groups, including this one at Riverside, have shown that graphene demonstrates negative resistance in certain circumstances.
Their idea is to take a standard graphene field-effect transistor and find the circumstances in which it demonstrates negative resistance (or negative differential resistance, as they call it). They then use the dip in voltage, like a kind of switch, to perform logic.
Still, real applications of graphene are still a long way from now and there's a lot of testing that needs to be done. Nevertheless, progress right? [MIT Technology Review]
Running your business can be overwhelming at times. You want to make sure your employees are present, that payment options are easy and seamless for clients, and you want your database marketing to be on point at all times. Is there a piece of equipment that can run your credit card processing while also helping you store your database marketing ideas? Yes, there is. The Clover pos systems by Merchant Account Solutions offer you a great way to run your company from the palm of your hand. Read more
Lots of people are focused on how we're going to escape our planet. They want to colonize another world because it's only a matter of time before earth becomes uninhabitable. Maybe they're getting too far ahead of themselves and they should be focusing their efforts on something else. Read more
Quite a lot of people started making a living off Youtube recently. As Youtube has started accommodating video-makers to a greater extent, it has become more commercial. From Vlogs to tutorials, you can find channels producing every kind of content for their fans. Read more