Chrobin @ Chrobin @discuss.tchncs.de

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2 yr. ago

Every other year the EU tries to pass another mass surveillance law - and the EU court of human rights rules it illegal.

You're right, I mixed it up with the complex numbers being isomorphic to R^2. Thanks for clearing it up!

Love btw how I get downvoted for an honest mistake.

Is this some joke I'm not getting? Cause yes, real numbers are the closure of irrational numbers, but imaginary numbers are just isomorphic to them.

Well, as the URL says, that's logistic growth and not exponential growth.

Just to add some formality to this, the original commenter might want to look up the shell theorem for classical mechanics and Birkhoff's theorem for general relativity.

Yeah, quantum mechanics lingo: measurement = interaction

Actually a good point, tho. And also a good thought: If there is no special direction, what would be up? And that's where quantum mechanics gets even weirder: It's either up or down in the direction you measure.

But they don't use Bluetooth.

The technical term you're looking for is "almost all" prime numbers. Not joking btw.

I had to derive osmotic pressure for my statistical mechanics exam in my bachelor's. So in what sense don't we know?

Thank you for the explanation!

Could someone explain how paying a person not to publicly talk about what you did is illegal? If a company does this, it's called NDA. Is it because prostitution is illegal in the US?

At least cosmology does use some serious quantum physics, even quantum field theory. Source: took 1 year of theoretical cosmology lectures.

They weren't talking about radioactive decay, electrons are stable. They were talking about electrically charged particles emitting electromagnetic radiation when accelerated. (Circular movement is accelerated, see centripetal force) Since they use energy for this, they would very quickly fall into the nucleus (if I remember correctly, in around 10^-14 s).

Bodies with mass also emit gravitational waves when accelerated, but much less.

Pretty sure a court told them to.

In our current understanding of physics, it's an effect from the curvature of space and not a force. Quantizing gravity results in unphysical divergences. Whether there will be a way to model gravity as an exchange of particles, we can't know for sure. So according to our current knowledge, it's not a force.

Gravity isn't a force tho...

For that, you need Hilbert spaces, linear operators on them, a little spectral theory, ...

Many people are trying to give a definitive answer, and there are good theories, but honestly, it is still very much an open question. There are multiple interpretations and as people tend to do in popular science, some spread their opinion as a fact, but we don't have one correct answer.

The only thing I quickly found is this paper, which says that learning multiple things is not better nor worse than one thing at a time, but it also states in the abstract that cognitive psychologists believed up to that point that mixing multiple topics is beneficial.