Turun
@Turun@feddit.de
- Comment on Autism 19 hours ago:
- Comment on What is a good eli5 analogy for GenAI not "knowing" what they say? 23 hours ago:
NO understanding. Just words that happened to describe all of it.
If being able to describe it does not mean understanding, then what is understanding?
- Comment on Still beautiful 1 week ago:
“I work with models”
Others: a beautiful woman or man
Me: also a beautiful woman or man, but with seven fingers on one hand and 3 three on the other
- Comment on Hardcore 1 week ago:
- Comment on The Force should be plural 1 week ago:
What force did he have if those are the other forces?
- Comment on You can't see him!!!! 2 weeks ago:
Forsén stated in the 2019 documentary film Losing Lena, "I retired from modeling a long time ago. It’s time I retired from tech, too… Let’s commit to losing me.
From Wikipedia
She was a paid model, so I don’t consider the usage unethical based on that. But I like this comment from a journal:
In today’s age of high-resolution digital image technology, it seems difficult to argue that a 512 × 512 image produced with a 1970s-era analog scanner is the best we have to offer as an image quality test standard".
Lmao, they do have a point though!
- Comment on #justgradschoolthings 2 weeks ago:
An impostor, lol
It’s where the term for the syndrome comes from.
- Comment on Geography is neat 2 weeks ago:
They will probably never join. Iirc there was a referendum once and they are quite happy with their arrangement.
Norway is part of Schengen and the European economic area.
- Comment on Geography is neat 2 weeks ago:
Nothing is out there! All there is is a lake and birds and fish. And a big ass cement block. And a wooden walkway. But there’s nothing else there. It’s a complete void. The environment is perfectly safe!
- Comment on Geography is neat 2 weeks ago:
Sure, but Norway is not in the EU ;)
- Comment on Can I Put it in my Ass? 3 weeks ago:
Missing a few more "hello there"s, unless this is what floats your boat:
a 12in diameter, 2m long Crystal of silicon (not silicone), made for semiconductor manufacturing
- Comment on Bees 3 weeks ago:
Yeah, the focus on bees is weird
But it’s a proxy for protecting insects in general. If normal people caring about bees gets pesticide use reduced I am all for caring about bees.
- Comment on Pick! 4 weeks ago:
As long as you tuck it’s really hard to land in a damaging way.
Back flips are surprisingly possible with some exercise. I can do them on flat ground.
- Comment on space 4 weeks ago:
Fair enough :)
- Comment on space 4 weeks ago:
Sure you can, but you need to adjust your position due to centrifugal forces all the time. A time machine would have to do that as well.
If a ball is flying in a straight line through space with a speed of 1m/s I can predict without much math where it will be at any point in time. In fact, if the reference frame is chosen such that the ball is stationary you don’t need any math at all, because the ball doesn’t move!
However, if you have a set of two balls orbiting each other you will always have to do math to calculate their position. I mean technically you could choose the reference frame that is rotating in sync with the balls. But still you need to do math to check that the centrifugal force, which is a real force coming from nowhere in this reference frame, exactly cancels out the gravitational pull between the two balls. Because rotating reference frames are not equivalent to each other!
- Comment on space 4 weeks ago:
Rotational reference frames are out though! (Unless you want to deal with magic forces acting on your masses)
And since the earth rotates around itself and the sun, and the sun rotates around the center of the galaxy, you will always have to deal with a moving target.
- Comment on space 4 weeks ago:
Actually for me the conclusion from my math was that it’s surprisingly possible to get millions of light years away from earth with just time travel. As such I consider the meme to be scientifically accurate.
Seeing earth as a lava planet or the primordial soup of life would be pretty sick!
- Comment on space 4 weeks ago:
…stackexchange.com/…/how-fast-are-we-moving-relat…
Earth moves with somewhere between 230-500km/s, long term average should 370 km/s
…wikipedia.org/…/Formation_and_evolution_of_the_S…
en.m.wikipedia.org/wiki/History_of_Earth
The solar system and earth formed 4.6 billion years ago.
numbat.dev/?q=370+km%2Fs+*+4.6+billion+years+->+l…
That means the solar system travelled 3.45-7.67 million light-years (5.45 for the average speed) since then.
That plural form (millions of light years) is borderline, but actually not incorrect.
- Comment on Why do Americans measure everything in cups? 4 weeks ago:
I mean, you can make the exact same argument the other way round.
My bed is made with boards of 27mm thickness. One third of that would be 9mm. Easy.
Also if you need precision, calipers go down to 50um (micrometer), 1/20th of a mm.
- Comment on He's got a point 5 weeks ago:
Yes? But that’s already explicitly warned about.
At work I had to fill out a form which threats to my health could impact me. Next to chemicals or radiation, working at a desk for more than x hours a day was also listed as a potential source of bodily harm.
- Comment on Hooooooooooooooooooot 5 weeks ago:
The mass market has really pushed solar panel production. I expect the material quality even of the cheap china panels to be better than what anyone was able to produce almost 40 years ago. That’s a long time to understand degradation processes and develop countermeasures.
- Comment on Hooooooooooooooooooot 5 weeks ago:
The solar panels I just bought have a manufacturer warranty for 87% power output after 30 years.
- Comment on Hooooooooooooooooooot 5 weeks ago:
Yeah, but PV is dirt cheap nowadays. Also
degrade over a few years.
If by “few” you mean like 30-50 then sure, they degrade. But it certainly beats anything with a spinning turbine. Or anything with moving parts really. PV is purely solid state physics, you can’t get more longevity than that.
If the capacitance of the system is not enough to hold the produced power then an electrical failure will occur, so you must also include large commercial and industrial batteries
That’s not true. You can also simply turn PV off. The inverters only run when they sense 50 Hz on their output terminals, it’s easy to have them turn off when it’s 50.2 instead. Basically all big powerplants follow that rule already, ordered by things like shutoff time etc.
a Heliostat (a Collection Tower and Mirror Array) out in the desert
Funny that you specified in the desert. The appeal of PV is not only that it’s cheap and easy, it also scales down to small investments and local power generation. If base load actually becomes a problem concentrated solar power will be relevant. But for now, slapping a few solar panels on your roof just makes sense.
- Comment on Hooooooooooooooooooot 5 weeks ago:
Yes? Makes things spin.
- Comment on If hot air rises, why is it colder at the top of a mountain? 5 weeks ago:
I can’t even criticize this comment, because you wouldn’t understand why.
So thanks for the effort I guess? But we’re not discussing real balloons.
- Comment on If hot air rises, why is it colder at the top of a mountain? 5 weeks ago:
Each time a gas molecule is hits the balloon envelope it transfers some momentum.
I see! Thank you very much!
If we assume the balloon model and the sides expand then each collision of a molecule inside the balloon with the outer wall will leave it with less speed and therefore lower energy and therefore a lower temperature.
As a consequence, gas expanding in a vacuum does not cool off, because it has nothing to transfer the energy to!
- Comment on If hot air rises, why is it colder at the top of a mountain? 5 weeks ago:
But does the energy to expand the balloon not just come from the pressure? Pressure has units of energy per volume btw.
- Comment on Okay, but Mötley is a pretty awesome name. 1 month ago:
Whenever I read Mötley Crüe I have to think of this:
When we finally went to Germany, the crowds were chanting, “Mutley Cruh! Mutley Cruh! “ We couldn’t figure out why the fuck they were doing that.
- Comment on We're sorry. 1 month ago:
No shit it’s bullshit. It’s a meme about AI text in a research paper that makes fun of Elsevier by having ChatGPT write an apology template for Elsevier.
- Comment on shameless b8 1 month ago:
Firefox has a “copy link without tracking information”, in the right click menu btw