vihren

7 ms·

1.
by vihren 1y ago
We do have a pretty substansive evidence that dark matter exists: from the cosmic background radiation, gravitational lensing, galaxy formation simulations, galaxy rotation curves, etc. Why is it so hard for people to believe that there are
2.
by vihren 1y ago
You might like Gattaca if you haven't seen it.
3.
by vihren 3y ago
That's purely by convention. It's just that we fist discovered electrons and protons and quarks with their fractional charges came in much later.
4.
by vihren 3y ago
How is it fair? You do give the same amount to everyone, but you do not take the same from everyone - you have to take more from those who chose to work. Hence the unfair part.
5.
by vihren 3y ago
I'll just paste a comment I had on a different thread because it answers your question as well. You are not to blame for not understanding this, it's just that the analogy for the electric dipole moment coming from a non-spherical
6.
by vihren 3y ago
You are not to blame for not understanding this, it's just that the analogy for the electric dipole moment coming from a non-spherical 'shape' of the electron is extremely bad. Moreover it's missing the most important re
7.
by vihren 3y ago
I cannot find the citation right now, but the p and n EDMs are expected to be close to each other ~1e-32 e.cm. One part is that they are uud and udd and the other thing to consider is that the quarks make up only ~2% of the proton/neut
8.
by vihren 3y ago
I'm working on the search for the EDM of the muon. Essentially it's much harder to search for the proton EDM than the neutron EDM. All EDM searches rely on a strong electric field applied to the particles. Because neutrons are neu
9.
by vihren 4y ago
Particle physicist here (relatively new to the field). I mostly do not understand the problem of Dr. Hossenfelder and others like her. One thing I often see and it seems reiterated here is 'Why do we need more and bigger expensive coll
10.
by vihren 4y ago
Its the momentum that kills you p=mV, not the kinetic energy. So I would guess that mass ia much more important.
11.
by vihren 4y ago
That's the issue exactly. Many things can go wrong if you place a lot of radioactive material on top of liquid hydrogen and liquid oxygen tanks.
12.
by vihren 4y ago
I have the same problem. I have recently moved to Switzerland and I am so grateful for the culture here. Noise is not tolerated, as it should be.
13.
by vihren 5y ago
Yup, definitely second that. With that change I can definitely imagine this as a user option in the settings. Reading is so much easier. (also wanted to see my avatar)
14.
by vihren 5y ago
Some healthy fraction of c seems to be possible with current technology also. If you consider 3% healthy that is. https://en.wikipedia.org/wiki/Project_Orion_(nuclear_propuls...
15.
Gallery of Curated Wallpapers(curatedwallpapers.com)
2 points by vihren 5y ago|0 comments
16.
by vihren 5y ago
I am a physicist by trade, but recently I started drawing on my Samsung tablet. I'm really enjoying it. For other folks that are doing digital drawing I can recommend that you print out your stuff on canvas with a high-end printer. The
17.
Fusion News Ignites Optimism(nature.com)
29 points by vihren 5y ago|91 comments
18.
by vihren 6y ago
Abstract: Understanding the mortality impact of COVID-19 requires not only counting the dead, but analyzing how premature the deaths are. We calculate years of life lost (YLL) across 81 countries due to COVID-19 attributable deaths, and als
19.
Years of life lost to Covid-19 in 81 countries(nature.com)
2 points by vihren 6y ago|1 comments
20.
by vihren 6y ago
I have tried it on a RPi3 and it is painfully slow. I would not recommend this to anyone.
21.
by vihren 6y ago
It is more related to the needed strength of the magnets to keep the particles on track and also the synchrotron radiation. The first issue is that the lower the radius of the circle, the stronger magnetic field is needed because of the in
22.
German Tank Problem(en.wikipedia.org)
2 points by vihren 6y ago|0 comments
23.
by vihren 7y ago
That seems pretty great, but I always have the problem of creating the ASCII art in the first place. Is there a tool to help with that?
24.
by vihren 7y ago
Just to add to the cacophony, there is one between Gif-sur-Yvette and Bures-sur-Yvette, Paris area. Its a nice walk for anyone close to the Paris-Saclay research center.
25.
by vihren 7y ago
In my workplace qwant is the default SE and I'm sorry to say it, but its awful. Maybe if you search in French it will be a bit better. I'm using DDG and I'm quite happy about it. Very rarely I switch to google and if I do it
26.
by vihren 7y ago
This is a very interesting observation if its real. I am from Bulgaria and I am a PhD candidate in physics. Whenever I tell someone that, they always say that its sounds cool and difficult and the next question is: What are you going to wor
27.
by vihren 7y ago
We are not discussing nuclear waste here. It is highly concentrated and disposed of in the end of the fuel cycle. What you should be comparing with is the radioactivity that is released in the environment during the operation of the plant.
28.
by vihren 7y ago
It seems that when they squeeze all possible optimizations, GCC was a bit faster, but for the not so optimized code GCC and rustc seem very comparable.
29.
by vihren 7y ago
I have just submitted an article to an Elsevier journal. They have some non-functional web interface so that you can edit the article yourself. My biggest problem was fixing the tables, because they looked really bad after the automated cop
30.
by vihren 7y ago
The creator of Sci-Hub is Alexandra Elbakyan and she is from Kazakhstan. According to Wikipedia [0] she spend 1 year working for a Moscow company, but that's it. I wouldn't classify it as a Russian service. There is a nice russian

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