Is this long Covid or depression or Major Depressive Disorder (MDD)? Because in her earlier videos she talks about becoming bed-bound again due to her emotional state after finding news her friend who had a similar condition died.
Dunno, personally I don't think its that much of my business. Sure I'm curious, but that doesn't mean I have a right, or that its a nice thing™ to publicly speculate
Physics Girl: Super-Kamiokande – Imaging the sun by detecting neutrinos [video]
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Re: Physics Girl: Super-Kamiokande – Imaging the sun by detecting neutrinos [video]
#62video about her long-covid battle and recovery here: https://www.youtube.com/watch?v=vqeIeIcDHD0 (caution for those currently sick as it's a rough watch at first)
Re: Physics Girl: Super-Kamiokande – Imaging the sun by detecting neutrinos [video]
#63Earlier quoted context omitted.
It's not the same photon though. The fusion happens in the core, then takes millennia for the energy to escape. During that time photons are emitted and absorbed by the atoms, until the surface emits one that finally travels to the earth in 8 minutes. Anyway that's taking you from the ELI5 to the ELI9 version. I'm sure someone on here can correct it further.
I haven’t tried to look up the history of this claim, but here are some guesses: 1. There’s a sort of diffusion process going on. Photons from the core have some mean free path as a function of radial position (and, obnoxiously, of wavelength as well, so maybe we ignore that). You could calculate the mean time for a hypothetical object emitted from the core and traveling according to those mean free paths to escape.…
> You could calculate how long it would take to notice anything if the core suddenly stopped fusing.
FW(little)IW (very not my field, just AI, quick&sloppy), for a Sun magically switched to contraction-dominated heating, I'm sloping order 10^6-7 yr for a 1% increase in surface temp, with core contraction dynamics being just one uncertainty.
Re: Physics Girl: Super-Kamiokande – Imaging the sun by detecting neutrinos [video]
#64Re: Physics Girl: Super-Kamiokande – Imaging the sun by detecting neutrinos [video]
#65I think Super-K is the place with water so pure that it will leach pretty much anything which was discovered when one of the tech's hair got wet while leaning over the water. The hair looked bleached after it went into the water. My googlfu is not finding anything to confirm though
Isn’t that also the one where a sensor imploded and caused a chain reaction that destroyed like a third of the other sensors?
The chain reaction escalated uncontrollably, and within ten seconds, approximately 6,800 of the 11,129 PMTs were destroyed.
[1]: https://physicscommunication.ie/neutrino-detector-in-peril-t...
Re: Physics Girl: Super-Kamiokande – Imaging the sun by detecting neutrinos [video]
#66The video mentions that this image was taken during the night time. If the neutrinos do not interact with the entire Earth on their way through, then how do they interact with the sensor?
Re: Physics Girl: Super-Kamiokande – Imaging the sun by detecting neutrinos [video]
#67The video mentions that this image was taken during the night time. If the neutrinos do not interact with the entire Earth on their way through, then how do they interact with the sensor?
Watch the video
Thirty interactions on average per day, that's crazy - earlier in the video the host mentions that the cross section of a thumbnail has a billion neutrinos flowing through every second!
Re: Physics Girl: Super-Kamiokande – Imaging the sun by detecting neutrinos [video]
#68I think Super-K is the place with water so pure that it will leach pretty much anything which was discovered when one of the tech's hair got wet while leaning over the water. The hair looked bleached after it went into the water. My googlfu is not finding anything to confirm though