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gene-h
searching PlanetScale…
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36 ms
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301.
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gene-h
10y ago
You are of course assuming the data will be easy to understand. One possibility for a neural mesh is that we emulate parts of the brain in hardware to say add more 'storage.' We don't need an understanding of the 'format
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gene-h
10y ago
That is only half the problem, from the article: "Cambridge Analytica buys personal data from a range of different sources, like land registries, automotive data, shopping data, bonus cards, club memberships, what magazines you read, w
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gene-h
10y ago
There are commercially available systems for jamming speed measuring lidar used by police.[0] Although I am unsure if this would disrupt a line scanning lidar [0] https://en.wikipedia.org/wiki/Laser_jammer
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gene-h
10y ago
Now what self driving cars really need are sensors for handling adverse weather conditions. IE sensors for seeing through fog, seeing through rain and snow, detecting ice on the road[0]. Or at the very least a sensor for detecting that thin
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gene-h
10y ago
While this is worth trying for the sheer coolness of it, I'm a bit skeptical about how it will perform. For FDM things are much weaker in the Z-direction than they are in the x-y plane.
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gene-h
10y ago
So they show that a graphene gyroid structure could be quite strong compressively. Now, the challenge is actually make such a structure. Making a template for graphene to grow on like this is bound to be quite challenging, minimizing the am
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gene-h
10y ago
What they are likely referring to here is strength to weight ratio. By more intelligently distributing material in space, one can get a higher strength to weight ratio than using solid material. Of course geometry does in fact influence mat
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gene-h
10y ago
Wow, I thought I had seen it all when it comes to energy storage, but this really takes the cake though. That piston is enormous! It might be the largest moving machine ever constructed if it was built.
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gene-h
10y ago
One thing that really annoys me about lego, is that lego mindstorms kits are still relatively expensive despite tech improving. It is hard for most parents to justify this costs on a toy. In fact, the price has gone up with time rather than
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gene-h
10y ago
I am surprised there is nothing about comcast on there.
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gene-h
10y ago
Well if it's solar powered, we can easily take it out with an inexpensive sticky black paint bomb. Second, while you won't run out of water, you will run out of other stuff for your hydrogen IED drones. Now a much better thing to
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gene-h
10y ago
This reminds me of an old joke that the best way to make software that will run 50 years from now is to write it as a NES cart.
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gene-h
10y ago
MOFs are one of the coolest nanomaterials. They are easy to customize and are sort of like molecular tinker toys. One can make a new MOF with the same structure by exchanging one of the molecular struts for another. In addition they self as
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gene-h
10y ago
It is now part of a national park: https://www.nps.gov/mapr/index.htm
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gene-h
10y ago
And we could have used them to answer some important questions in physics, however, they got mined away: https://medium.com/the-physics-arxiv-blog/in-the-1970s-scien...
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gene-h
10y ago
One thing I have found with haptics is that like VR, it can make you very sick. It has been shown that haptics can cause pretty nasty cases of vertigo[0]. In this study, after using a haptics device for 10 minutes the user started experienc
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gene-h
10y ago
One interesting means of doing this is grammar induction[0]. NMS's appears to have a defined pattern for say a spacecraft IE wings go here, cockpit goes here, engine goes here and then choosing a block for each of them. With grammar in
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gene-h
10y ago
"Just because we shouldn't doesn't mean we won't"
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gene-h
10y ago
Of course if one moves with the wind then the apparent windspeed, or airspeed, is zero.
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gene-h
10y ago
And why wouldn't a Mars base be dependent on outside supplies? Mars is still a hostile environment. So one thing that makes Venus attractive is the atmosphere contains everything needed to make breathable air, water, fuel, and plastics
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gene-h
10y ago
For one, nuclear pulse rockets violate several international treaties. Fission fragment rockets, while the performance is impressive on paper, have yet to be demonstrated in the lab. Nuclear thermal propulsion has been demonstrated on Earth
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gene-h
10y ago
Software can probably assist here, at least that is the assertion of the research group I am working in. Simulating the assembly of molecular machines is very hard, more so than simulating the machines themselves. Chemical reactions are har
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gene-h
10y ago
And it might still work. One of the neat things about Philae is that it's rated to withstand temperatures down to −60 °C. Most other space probes(and electronics in general) are not rated for such low temperatures and will experience s
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gene-h
10y ago
So I once saw a talk by one of the Steve K. Robinson, a mission specialist on the STS-114 where a gap filler came loose from one of the tiles and was protruding near the front of the shuttle. Accord to him, this was a very scary situation.
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gene-h
10y ago
These trolley problems make the assumption that the car can perfectly distinguish pedestrians from other obstacles, however, in the real world this will probably not be the case. It is difficult for self driving cars to distinguish pedestri
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gene-h
10y ago
Soft robotics is a bit overhyped. So the two big things that make soft robots interesting right now are the ability not to hurt people if the controller messes up and the ability to squeeze through cracks. If controllers become sufficiently
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gene-h
10y ago
Honestly, I am disappointed that even though they built a circuit with an oscillator they didn't make a robot that moves. They could have easily made a manta ray robot like this: https://www.youtube.com/watch?v=mTjhXKIX
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gene-h
10y ago
Thing is, it doesn't even translate itself, so it's really more of a 'rocket fuel powered wacky waving tentacle.'
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gene-h
10y ago
What I don't understand is how this got published in Nature. This work, while cool isn't that novel. Microfluidic logic and soft actuators have been around for some time. Combining the two is not that impressive and more worthy of
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gene-h
10y ago
So there are issues with using this to replace animatronics. One is that microfluidic logic has low operating frequencies, as in less than 100 hertz. This makes it hard to do fine control. Issue two is that elastomers do not have a great fa
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