Chrobin

@Chrobin@discuss.tchncs.de

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Chrobin ,

I have never worked on machine learning, what does the B stand for? Billion? Bytes?

Chrobin ,

Thanks!

Chrobin ,

Also, desolate sounds a lot more negative than empty to me. Maybe something like "devoid of [...]" might convey more of a similar idea?

Chrobin ,

Small nitpick: Mandarin is the name of the spoken language. The written language you are talking about is called simplified Chinese, as opposed to traditional Chinese used in Taiwan (who also speak Mandarin).

Chrobin ,

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

Chrobin ,

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.

Chrobin ,

No, their point is about people thinking all people of a group have a characteristic because some of them do.

Chrobin ,

Gravity isn't a force tho...

Chrobin ,

Well, firstly, we can quantize gravity pretty easily, it just has unphysical divergences.

But secondly, I think it makes most sense to talk about the current accepted physics because we don't know how quantum gravity will work.

Chrobin ,

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.

Chrobin ,

But the point of general relativity is that a free-floating observer is equivalent to an observer in free space. That means that falling due to gravity, which you call a force, is an unaccelerated movement, i.e. no force.

Chrobin ,

I'm not trying to argue approximations. Physics is just approximations all the way down. But as a physicist, I also love arguing about technicalities, and that's also kinda the point of science communities for me.

Chrobin ,

That is actually not backed by science. Mixing material is a lot more effective than focusing on one thing.

Chrobin ,

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.

Chrobin ,

Well, when you get to Lie groups, it gets a lot harder. But generally I agree, nonrelativistic quantum mechanics is mathematically not that hard.

Chrobin ,

I think you just have to differentiate whether you want to do mathematically rigorous QM (which gets arbitrarily hard), or just do useful calculations.

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