Recent comments in /f/science

ShittyBeatlesFCPres t1_j6n8j8m wrote

It seems silly to only have two legs when you can add a third for stability and balance. Humanoid robots will never be as safe as Kangarooid roobots, assuming the roobots don’t have boxing gloves on, anyway. Humans are terribly designed.

Another option might be tank treads. That worked well in Basewars for NES.

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chcampb t1_j6n8fa2 wrote

Or, you know, we can stop using synthetic fabrics.

They are basically there to trick people anyway. They are softer (temporarily!) and then get garbage feel. They are a bait and switch, they don't last as long, they are less likely to wick moisture and more likely to grow mold and bacteria.

The day I put two and two together and realized that the only decent clothes I own had basically no synthetic fibers, that was a good day. Made a point of never buying any synthetic crap again. That was years and years ago. Doesn't apply to winter outer gear (ie, windbreaker material).

Now knowing that they also release microplastics, which we don't know the full extent of how they can damage the human body over time, we really need to regulate or tax the use of synthetics. Right now they are so much cheaper that every clothes company wants to use them as their high profit margin clothes and just push out a ton of them, when instead, synthetics should only be used when they have the desired characteristics in the fabric (ie, stretch, waterproof).

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Mindless_Button_9378 t1_j6n7hiy wrote

Essentially that those that used mindfulness had more empathy, or could understand and relate to their SO feelings, more effectively which decreased their resistance to attachment.

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Queasy-Bite-7514 t1_j6n5kf2 wrote

You may be right but you’re grossly overstating the evidence. Not everyone with concussions gets CTE. The science on tbi has not been stifled by the nfl. There are lots of veteran studies and athlete studies. Maybe the nfl is a different beast but let’s not get all dogmatic.

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Impossible_Cookie596 OP t1_j6n5dfi wrote

Abstract: The dynamic response of the legged robot locomotion is non-Lipschitz and can be stochastic due to environmental uncertainties. To test, validate, and characterize the safety performance of legged robots, existing solutions on observed and inferred risk can be incomplete and sampling inefficient. Some formal verification methods suffer from the model precision and other surrogate assumptions. In this paper, we propose a scenario sampling based testing framework that characterizes the overall safety performance of a legged robot by specifying (i) where (in terms of a set of states) the robot is potentially safe, and (ii) how safe the robot is within the specified set. The framework can also help certify the commercial deployment of the legged robot in real-world environment along with human and compare safety performance among legged robots with different mechanical structures and dynamic properties. The proposed framework is further deployed to evaluate a group of state-of-the-art legged robot locomotion controllers from various model-based, deep neural network involved, and reinforcement learning based methods in the literature. Among a series of intended work domains of the studied legged robots (e.g. tracking speed on sloped surface, with abrupt changes on demanded velocity, and against adversarial push-over disturbances), we show that the method can adequately capture the overall safety characterization and the subtle performance insights. Many of the observed safety outcomes, to the best of our knowledge, have never been reported by the existing work in the legged robot literature.

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Queasy-Bite-7514 t1_j6n4plc wrote

Did they control for alcohol use? They didn’t mention it in the limitations. 40-50% adult TBI is associated with alcohol use which we know is a cognitive risk factor. Also adhd and impulsive behaviors in young men correlate more with tbi which could be a factor. Not saying concussions are good but we still don’t fully understand why.

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youcancallmeBilly t1_j6n324t wrote

Come on. You’re better than this.

I went into detail explaining my positions on uncompromising gun zealots and the refusal to restrain access to firearms, but you know I didn’t say anything about ‘hating guns’

I own guns and I’m an avid sport/recreational shooter and your arguments are literally what I’m talking about.

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Zoomwafflez t1_j6n2frs wrote

While it's true synthetics get used a lot for outdoor clothing it's mostly a cost factor. There is no widely used insulation that's as good as down, there is no better shell material imo than wool. (Water resistant, maintaining 70% of it's insulation value when wet, durable, and flame retardant) Natural materials are heavier and more expensive though

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SnooPuppers1978 t1_j6n12bc wrote

I guess what they have to do is put all people to sleep, for certain individuals trigger a concussion while they are sleeping and for others leave them be, but inject something to trigger headache and other symptoms as if there was a concussion. Then they wake up both groups and tell them that they are within the concussion group.

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