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The Xsens ForceShoe watches your step, helps you walk better
The technology-laden Xsens ForceShoe might better be described as a sandal. However, if you're the type of bipedal perfectionist who wants to analyze your gait using an array of 6DoF force sensors and magnetic trackers (not to mention that cunningly-disguised wireless data transmitter), then the chances are your toenails can also stand a bit of scrutiny. In fact, although the ForceShoe is primarily designed for physio patients, we think its inventors at the University of Twente might just have stumbled upon the next-gen Nike+ accessory we've all been waiting for. Unfortunately they're not on sale, but if you're a researcher looking to measure the orientation, acceleration, angular velocity, force and torque of your feet in three dimensions, you're welcome to hop past the break for the full press release.
World's smallest violin uses MEMS, plays only for you (video)
You might not have heard of microelectromechanical systems (MEMS), but there are likely a bunch in your new smartphone -- they make possible the tiny accelerometers and gyroscopes needed to detect motion as your device swings around. However, last week students at the University of Twente demonstrated a brand new micrometer-scale system: a tiny musical instrument that plucks strings (those "folded flexures" above) one-tenth of a human hair wide. Six microscopic resonators fit on a microchip, one resonator per musical tone, and series of the chips can be combined into a MIDI interface to play entire songs. Though the micronium needs to be amplified 10,000 times before they're audible through standard speakers, the instrument's the real deal -- watch it play a wide selection of tunes (including some Mario Bros) in a video after the break. One burning question remains, however: is this nano-violin open source?
