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kavouras

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I don't like the idea of moving from google's ecosystem to proton. While they're better, ecosystems tend to get locked down or change for the worse.I'm not planning to repeat the google cycle. I got my own domain for email, bitwarden for passwords, firefox forks for browsing, and many other stuff to get off google. Also I realised that stuff like contacts, notes, calendar don't really need to be on the cloud, but I'm planning to self host some services like that, mostly for the nerd in me.

I'm not sure what your argument is. I'm not trying to talk about the semantics of the word right. Yeah every human rule is a social construct, I'm just saying this is bad, and it's only the beginning.

I'm guessing you're a US citizen, because this isn't about the US. Many countries in the world are more or less puppies of the US government, it's not like we're living in an isolated world where the decisions of the US government don't apply to others because they're not US citizens. This is showing a general trend, which doesn't concern just visa applications.

Of course its worth making a fuss about it. My social media are private because what's getting shared in it is for close friends and family only. The US government has no right searching through it. This is a big joke and I'm afraid it's only the beginning. Personally, with how things are going, I don't think I'm pursuing a PhD in the US after graduating. What's next, sharing a backup of my private conversations?

I'm afraid we're going into a weird timeline where authoritarian figures in power(not just government) are having immense amounts of data for people, and the technology to go through it without much effort. It's a good time(if it's not to late) for everyone who cares about their privacy to start getting as much as possible outside mainstream social media and centralized accounts(google etc)

In my limited understanding, there are many factors differentiating between antennas, different antennas are better at emitting/receiving at different frequencies, and also there's directionality in the mix . For example a satellite dish and an FM radio antenna are both antennas, they're certainly not the same thing.

I'm a Greek and this article saddens me.

Greece is run by a populist government, one of the two parties that had be running Greece to it's demise. Kyriakos Mitsotakis is the first Greek politician in my opinion to understand modern media and how to manipulate them, appearing as the sensible choice to people who don't put any effort into researching politics.

All that while we've had the government donating millions to friendly media,

the Greek version of Watergate, with the goverment spying on politicians, journalists and others

and two trains colliding because of state incompetence with many students dying.

All that have not been investigated properly.

Finally the average greek person has not been feeling any "fastest improving business environments" one of the reasons being that the sectors that thrive are not beneficial to the country.

There is a mistake in my first comment, the system is described by x'' = -1.00204*x' + u , I forgot a '. Also in the second example , where there is no x' term, you can reach the origin in 0.4 using this strategy.

I just spent too much time messing around with this, so here's the results. The simulation has a limit on the maximum magnitude of the force of your controller, which in this example is 50. The system is described by x'' = -1.00204*x + u (by experimenting with console.log). The theoretical solution to minimize time to the origin on a system like this is a bang-bang strategy: go full actuation and at some point slam the breaks to stop exactly at the origin. Using this strategy you can calculate that you should hit the brakes(-50) starting at x= − 0.867, with the system arriving at the origin at t=0.403. But the timestep of the simulation is dt =0.02, so the system goes from x=-0.874060101875918 to x = -0.6686069466721608 in one timestep, missing the critical switching point. If you try to switch at -0.6686069466721608 it overshoots and at -0.874060101875918 its almost there when t = 0.4 but not good enough for the simulation to decide you finished the challenge. So 0.42 has to be the best you can do. What you controller actually does, due to the actuation limits, is almost the strategy described above, staying either at 50 or -50, except for 3 time points, which make the dynamics just right to land on the origin.

Yes, after doing some testing with console.log even in the first examples, thrust magnitude is limited to 50.

The ideal solution, given that there is not input limit, depends on the simulation accuracy. Theoretically, you could achieve 0 time solutions.

Shouldn't this have some thrust limits? I'm not sure if they are added later(I've only seen the first example), but it would make the problems more realistic, interesting and related to control theory.

Hi, first of all congrats for your effort, but I think this is hitting a little bit on the HN information/app hoarder mentality for many commenters and not from people actually planning to use it. I don't think that there is an extreme amount of transfer from learning the fretboard on your website and on the guitar, as there is a different context from using your mouse to select a note on a image representation of the fretboard and on a real guitar. I don't think it wouldn't work, but it would be much better if there was an actual guitar involved, like using the microphone to identify if the user played the correct note on a real guitar.