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One of the projects I worked on Dyson School of Design Engineering / Thrishantha Nanayakkara is getting published! We designed a print-in-place compliant wheel that passively transforms when encountering obstacles. Video with more details: Early access paper:
10 条评论
@ImperialDyson @thrishlab bro reinvented the wheel
@ImperialDyson @thrishlab cool design! in indoor spaces, our robot wheels roll over power cables and the like. wouldn't that snag the wheels here? also, under heavy loads, wouldn't the wheels deform a lot?
@ImperialDyson @thrishlab Thanks! Yes one of the biggest issues we noticed outside was the tendency to snag roots / the back half of obstacles. We experimented with some mitigations but I ran out of time and had to graduate :) Deformation is a concern but stiffness is pretty tunable to the use-case.
@ImperialDyson @thrishlab
@ImperialDyson @thrishlab my favorite part is how the cart gets stuck every single time when the obstacle high centers the body. it's a cool wheel, though!
@ImperialDyson @thrishlab Thanks! Yeah, the wheel design outperformed our robot design.
@ImperialDyson @thrishlab This is a dope use case for compliant mechanisms! Could def see this being used for rovers or something similar
@pipedream_labs @ImperialDyson @thrishlab Gahhhhh, that’s so cool!
@ImperialDyson A lot of people asked for the STL file. Thomas generously shared the file here. Have fun trying out new ideas:
@ImperialDyson @thrishlab I will love to be a fly in the room where all these ideas are brainstormed, so cool!
![🚨Oxford Research Team Wraps Up New Study and Concludes: STOP universal mental-health interventions in schools - it makes too many kids worse One of the original Oxford researchers of the 2023 study announces they have published this week an updated study concluding universal school-based interventions based on CBT and mindfulness theories have significant probability of resulting in negative effects, warranting their discontinuance in universal settings. Full text: "Can mental health lessons in schools sometimes make young people feel worse? Well, this is a question that we asked in a review paper that we published this week. And we looked specifically at lessons that taught either CBT [cognitive behavioral therapy] or Mindfulness to groups of young people in schools What we found was that in 9% of these studies something that was supposed to improve like depressed mood or peer relationships ended up getting worse and not better. And when we look specifically at the high quality studies, so the ones with big sample sizes and good statistics that we can really trust, that figure increased to 33%. So, in a third of these studies, something that was supposed to improve ended up getting worse in the group of young people who had these either CBT or mindfulness lessons. Importantly, this only happened in universal interventions, so that's when this mental health information is taught to the whole class, regardless of need. I think this evidence, combined with other evidence that we have, suggests that we should start moving away from this universal approach to mental health in schools where everyone is taught about mental health and move towards more effective approaches like one-to-one support or small group support for people who either want or need it. There's much more information about all of this in the paper, which I will link to."](https://image.24vids.com/tw-1903435147661430886/ext_tw_video_thumb/1903434066864832512/pu/img/DhwpMe2x5sOHrm9y.jpg)
