Earlier quoted context omitted.
American kettles. Kettles in hard core countries push 2300 to 2400 watts ;-)
Meh, Lidl sells 3200w kettles.
Where are the three phase models??
Seriously though, a 15A kettle sounds great.
Record-breaking neutrino is most energetic ever detected
81–90 of 137 posts
Re: Record-breaking neutrino is most energetic ever detected
#82Anybody here able to tell me what it means? Where do neutrinos get their energy from? Is there a limit? Will this make my phone smaller? My microwave quicker?
Re: Record-breaking neutrino is most energetic ever detected
#83Earlier quoted context omitted.
That was a cosmic ray proton, which has probably 10 billion times the mass of a neutrino and interacts much more strongly with normal matter. A nuclear juggernaut vs a ninja by comparison.
Most likely a heavier nucleus than a proton too
Would a nucleus composed of multiple nucleons stay stuck together with that much energy? If it's zipping along and not interacting with the anything then sure but how did it get that much energy in the first place?
Re: Record-breaking neutrino is most energetic ever detected
#84Anybody here able to tell me what it means? Where do neutrinos get their energy from? Is there a limit? Will this make my phone smaller? My microwave quicker?
I can answer last two questions with definite "no".
Re: Record-breaking neutrino is most energetic ever detected
#85Earlier quoted context omitted.
What if our existing solar panels are optimized to detect these? Then will it improve the quality of solar panels to capture more energy from sunlight as well? Sorry, I'm no expert in this - asking more of a curiosity.
If we had the ability to detect neutrinos in such a small volume as a solar panel they’d be immensely valuable for communication - we’d be able to beam signals directly through the Earth, or through deep water.
Following that same line, if we had that ability, it would be useful for communicating to deep submarines like the U.S. used to do with Project Sanguine[0] and ELF waves :)
Re: Record-breaking neutrino is most energetic ever detected
#86Earlier quoted context omitted.
Neutrinos “interact with regular matter so rarely that it's estimated you'd need about a light-year of lead to completely block a bright source of them. Every one of us has tens of trillions of neutrinos passing through us every second, but fewer than five of them actually interact with the matter in our bodies in our entire lifetimes.” They have 1/500,000 the mass of electrons. They interact only through the super s…
>Every one of us has tens of trillions of neutrinos passing through us every second, but fewer than five of them actually interact with the matter in our bodies in our entire lifetimes.” Oh, but those five...
Next time I trip over nothing I am blaming those "darn neutrinos messing up my knee!"
Re: Record-breaking neutrino is most energetic ever detected
#87For context, 120 PeV is about 10% the kinetic energy of a ping pong ball during typical play.
There's interesting "end of life" scenario. Nearby supernova exploding and sending so many high energetic neutrinos that even with their rare interactions they could mess up all chemistry that biology uses. And you wouldn't be able to shelter from it since the whole planet is basically transparent to them.
Re: Record-breaking neutrino is most energetic ever detected
#88Earlier quoted context omitted.
It's worth noting that we received the neutrinos from Supernova 1987a before the photons. We think that's because the photons have a difficult time escaping the ejecta cloud, while neutrinos stream away freely, but who knows ...
Oddly another detector caught a burst of low energy neutrinos that came a few hours before the burst that everyone accepts was from 1987a https://www.sciencedirect.com/science/article/pii/S092765051... Low energy tachyons would go a little faster, but you've got the additional problem of explaining why neutrinos got emitted in a spectral line.
That is weird. Is the conventional explanation a flash from one of the last fusion stages right before core collapse?
Re: Record-breaking neutrino is most energetic ever detected
#89Earlier quoted context omitted.
Most likely a heavier nucleus than a proton too
Would a nucleus composed of multiple nucleons stay stuck together with that much energy? If it's zipping along and not interacting with the anything then sure but how did it get that much energy in the first place?
Yes, while there is a large amount of uncertainty, it is believed they the majority of the highest energy cosmic rays are nuclei of elements like iron. For people like me, in the business of finding high energy neutrinos (I'm not involved in km3net, btw), that's a bad thing since that means the highest energy cosmic rays convert less efficiently into neutrinos when interacting with the cosmic microwave background.
How they got so much energy in the first place is kind of an open question. Generally it involves magnetic fields and shock fronts, getting a little kick each time (but yes, you also have to avoid disintegrating the nucleus in the acceleration environment!)