ProfessorScience

joined 2 years ago

Is this why the second coming hasn't actually come yet? He's on his dieback?

[–] ProfessorScience@lemmy.world 11 points 4 days ago (3 children)

This is not the same for all crypto currency, but a bitcoin represents a "proof of work". When people "mine" bitcoins, they are consuming computational resources, and when they find a bitcoin, it is a certification of the work that was done to find it that becomes the value of the coin. And then, as others as mentioned, people just agree that that work has a certain amount of monetary value. But the proof of work is what limits the supply and allows that value to exist. 3Blue1Brown has a really good video that goes into the technical details if you're interested.

[–] ProfessorScience@lemmy.world 30 points 1 week ago (4 children)

No, half the country voted for this. Or failed to vote against it.

I went on a trip to Oslo and Bergen last summer. I'd love to go back; they're great places for mixing hiking and city exploration.

[–] ProfessorScience@lemmy.world 8 points 2 weeks ago

Inasmuch. It is the totem pole trench of words.

[–] ProfessorScience@lemmy.world 16 points 2 weeks ago (1 children)

I think this would fall in to the latter scenario. 46 billion light years is the edge of the observable universe in the sense that light emitted by those regions has reached us by now. But these regions are beyond the cosmic event horizon, which is the distance at which light emitted now will ever reach us. That distance is about 17 billion light years.

[–] ProfessorScience@lemmy.world 25 points 2 weeks ago (4 children)

Is there any point at which the distance becomes too large to the extreme where you basically get “deleted” from existence?

This is basically what the definition of "observable universe" is. It is the part of the universe that is close enough in space and time for light to reach us. So if you say they get transported to the observable part of the universe, then yes, their signals will eventually reach earth. But the closer they are to the edge of the observable universe, the longer the signals will take to reach, and the more red shifted they will be due to the expansion of the intermediate space as the signals travel to Earth.

Note that there are some semantics at play; "observable universe" might refer to the parts of the universe that have emitted light in the past that is reaching earth now. But the the light emitted by those places now might never reach Earth because they are now too far away. So if these astronauts got sent to one of those places then no, their signals would not reach earth.

[–] ProfessorScience@lemmy.world 2 points 4 weeks ago (4 children)
[–] ProfessorScience@lemmy.world 8 points 1 month ago

I'd love to see more of this.

[–] ProfessorScience@lemmy.world 3 points 1 month ago

How is the definition of theft determined? Typically the definition is determined by the government. Why would the government define its own funding source as theft?

14
Sound cutoff issues (lemmy.world)
submitted 10 months ago* (last edited 10 months ago) by ProfessorScience@lemmy.world to c/pop_os@lemmy.world
 

Hello! I'm pretty new to pop_os and linux, but am trying to switch over from windows. I've been having some sound issues where it seems like sounds get cut off. It seems to most noticeable with something like doing duolingo from my browser (lots of short sound clips of words and such; if I click on words quickly, then spotify playing in the background will stop playing briefly). I've tried disabling sleep, as described by https://support.system76.com/articles/audio/, without luck. I've also noticed that I see errors listed in pw-top which sometimes correspond to sounds getting cut off. That is, sometimes I notice a cutoff without seeing an increase in the number of errors, but when I notice an increase in the number of errors it usually corresponds to something getting cut off.

Is there a way to see what the errors from pw-top are? Or suggestions for other things I should look into? I've looked at dmesg and systemctl status --user pipewire.service (and pipewire-pulse) but the only error I see is a nvidia-drm thing which seems to be innocuous. I've also uploaded my alsa-info results, if that's useful.

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