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World's smallest FM transmitter built with graphene, ruined by Psy
Researchers have been using graphene to develop an assortment of technologically advanced things for a while, from camera sensors and contact lenses all the way to frickin' lasers. That's why it's not a surprise to see a group of engineers from Columbia University create the world's smallest FM transmitter using the atom-thick material. The end product isn't just for show, either, as it can pump tunes over the airwaves to a regular FM radio -- the team even used Gangnam Style to prove that it works. As interesting as the teensy transmitter is, the engineers have no plans to build a radio for ants, and this is merely part of a larger study into nano-electromechanical systems. Now all we need is for someone to make a tiny violin and a pair of tweezers small enough for us to play.
NEMS takes step forward, MEMS looking nervously over shoulder
Just as it's starting to seem like MEMS motion sensor technology is gaining more widespread use, we're now hearing rumblings of activity from the developers of its eventual successor: NEMS (Nano-Electro-Mechanical Systems). To contextualize this discussion (and to give laypeople a shot at understanding), MEMS sensors are the magic behind the Wii MotionPlus as well as a stunning tech demo recently conducted on a Toshiba TG01. The nascent nano version promises even greater sensitivity, and now scientists from TU Delft in the Netherlands claim they have successfully measured the influence of a single electron on an 800nm-long carbon nanowire. Just detecting such an event is a feat in itself, while the ability to measure its effects can be used in a huge range of ways: from transportation and medicine to ultra-sensitive gaming controllers. While accurate comparisons between the Dutch breakthrough and current generation sensors cannot yet be drawn, we can confidently say that this marks an important step toward making our dreams of playing a nanoscale piano a gargantuan reality.
Quantum PI's nanoTrek sensors pick up vibration and motion your Wiimote could never dream of
Quantum PI has just built the first motion sensor chip to use "quantum tunneling," which sounds theoretically unsafe, but we'll follow along. The nanoTrek sensors are classified as NEMS (Nano Electric Mechanical Systems) as opposed to the "bulky" MEMS sensors that can be found everywhere from the Wii to the iPhone. nanoTrek's sensing area is a mere 50 x 50 microns, and its sensitivity is 5 to 10 times greater than MEMS chips. There are all sorts of boring industrial applications to such a sensor, but we're looking forward to the not-too-distant-future when we can be completely disappointed by a brand new version of Super Monkey Ball.[Via The Inquirer]
