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Hackaday Links: March 6, 2022

As if the war in Ukraine weren’t bad enough right here on Earth, it threatens knock-on effects that could be felt as far away as Mars. One victim of the deteriorating relationships between nations is the next phase of the ExoMars project, a joint ESA-Roscosmos mission that includes the Rosalind Franklin rover. The long-delayed mission was most recently set for launch in October 2022, but the ESA says that hitting the narrow launch window is now “very unlikely.” That’s a shame, since the orbital dynamics of Earth and Mars will mean that it’ll be 2024 before another Hohmann Transfer window opens. There are also going to be repercussions throughout the launch industry due to Russia pulling the Soyuz launch team out of the ESA’s spaceport in Guiana. And things have to be mighty tense aboard the ISS right about now, since the station requires periodic orbital boosting with Russian Progress rockets.

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Vibrating Gloves Help Bring Back Finger Sensation After Injury

This glove is something of a medical breakthrough. It’s used in conjunction with a musical keyboard to teach the wearer how to play simple songs. The thing is, instrumental proficiency isn’t the end goal. This is aimed at returning sensation to patients who have had a spinal cord injury. Many of the test subjects — all of which had the injuries more than a year before participating — experienced increased sensation in their hands and that is quite rare under these circumstances.

There’s not a ton of information available on the hardware itself, but this image lets us make a  pretty good guess. The glove is a typical fingerless cycling glove. There are two conductors worth of ribbon cable going to each digit. On the ring finger you can make out the bulging hardware which appears to be a vibrating cellphone motor. The white enclosure houses the microcontroller which receives wireless commands from a PC. When it is time for a finger to move, the appropriate motor vibrates. This is best explained in the clip after the break.

Apparently the combination of sensory feedback and the need to react to it provides the therapeutic impetus which achieves the promising results seen in the study.

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