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Hackaday Links: July 24, 2022

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OK, maybe that won’t help right away. NASA has published a more detailed analysis of the damage sustained by the James Webb Space Telescope from a micrometeoroid impact and declared the damage “irreparable”. Not that any damage to the JWST could be repaired, at least not in the sense that the Hubble Space Telescope could be fitted with optics to fix its finely but inaccurately ground primary mirror. The JWST is too far away to contact support, so correctability in this case refers to a combination of what can be achieved by adjusting the shape and position of the affected mirror segment, and what can be taken care of with image processing. Damage to the C3 segment, as well as damage to other segments in a total of six collisions over the half year Webb was on the station, is assessed using “wavefront probing”, which shows how much of the phase mismatch comes from each of them. there is a mirror segment. The damage sounds terrible, and it certainly must be painful for the technicians and engineers who built this thing so lovingly and painstakingly to see it fail, but in the long run, this damage shouldn’t get in the way of Webb’s long-term scientific goals.

In other space news, we hear that perseverance The rover took its first piece from an ancient river delta in Jezero Crater. The rover poked around looking for something interesting to sample, but everything he tried with his abrasive tool was either too fragile, too hard to get, or scientifically boring. The rover eventually found a good drilling site and retrieved a 6.7 cm core sample. This makes it the tenth core sample collected as a whole, and the first from the delta region thought to have the best chance of containing evidence of ancient Martian life.

Closer to home, we’ve all probably heard of robotic surgery, but the image that comes to mind is actually not true. Robotic surgery is probably a more appropriate term, as surgical robots are typically ultra-precise remote manipulators controlled by an experienced surgeon. But if research into the performance of surgical robots is any indication, then the days of human surgeons may be numbered. The study compared the accuracy and speed of both a human surgeon operating a standard Da Vinci surgical robot and an autonomous version of the robot alone, using a depth camera for measurement. Using a standard test of surgical skill, the autonomous system equaled human surgeons in terms of failures—fortunately, there were no “oops” for any of them—but outperformed humans in speed and positioning accuracy. It will probably be some time before fully autonomous surgeons become something special, but in the long term we won’t bet against it.

Most readers have no doubt heard the exciting news that Supercon will return this year as an in-person event! Be sure to set aside the first weekend in November to make the Pasadena Pilgrimage – it will be great to see everyone again after a long absence. But if you just can’t wait until November for the IRL scam, consider checking out SCALE 19X this week in Los Angeles. The Southern California Linux Show runs from July 28-31 and features a host of speakers, including a keynote by Vint Cerf. Hackaday readers can save 50% on tickets with promo code HACK.

And finally, as lovers of Easter eggs of all kinds, but especially the hidden message in software variety, we appreciated this ode to the Easter egg, the built-in artistry that has served as a creative outlet for programmers over the years. The article lists some great examples of the art form and also explains why they are in fact important artefacts of the tech world and what they are good for. We’ve tried a few of the ones listed in the article that we haven’t heard of before; some hits, some misses, but they are all appreciated. Well, most of them – corporate hooray – can immediately burst, as far as we know.

#Hackaday #Links #July

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