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Record-breaking neutrino is most energetic ever detected

nature.com

21–30 of 137 posts

Re: Record-breaking neutrino is most energetic ever detected

#21
post #8

For context, 120 PeV is about 10% the kinetic energy of a ping pong ball during typical play.

One of the lead researchers in KM3NeT mentioned that the particle was emitting 2 horse power in light during detector transit. A typical body builder expends about 1 horse power while performing, so its 2 body builders in a single particle.

Can we harvest that energy?

Re: Record-breaking neutrino is most energetic ever detected

#23

For context, 120 PeV is about 10% the kinetic energy of a ping pong ball during typical play.

Right, and it is this amount of energy in a single particle . A ping-pong ball is comprised of who-knows-how-many billions of particles, so the energy of any one particle is a fraction of the whole.

[deleted]

Re: Record-breaking neutrino is most energetic ever detected

#24

The article references the "Oh-My-God particle, the most energetic particle yet encountered. Here's the late John Walker's excellent piece on that: https://fourmilab.ch/documents/OhMyGodParticle/

> These calculations involve some elementary but easy to mess up algebra and some very demanding numerical calculations for which regular IEEE double precision is insufficient. If you'd like to double-check these results, be sure to use a multiple precision calculator with at least 30 significant digits of accuracy. So you're saying my iPhone built-in calculator app is going to have problems....? Time to whip out dc…

https://www.wolframalpha.com/

Re: Record-breaking neutrino is most energetic ever detected

#25

For context, 120 PeV is about 10% the kinetic energy of a ping pong ball during typical play.

Now, what will happen if you get hit by a ping-pong ball mass of 120 PeV neutrinos? 120 PeV is about 2e-16 grams, so a ping-pong ball will have about 1e16 of them.

From nothing, to detectable, to lethal, to big boom?

My intuition would be "detectable" but I don't know enough to do the maths.

And by the way, I am using the mass-energy, not proper mass, because the question is crazy enough not to even consider what would be the mass of a neutrino.

Re: Record-breaking neutrino is most energetic ever detected

#26
post #21
post #8

Earlier quoted context omitted.

One of the lead researchers in KM3NeT mentioned that the particle was emitting 2 horse power in light during detector transit. A typical body builder expends about 1 horse power while performing, so its 2 body builders in a single particle.

Can we harvest that energy?

This particle spread this energy through a volume of seawater a few km deep in the Mediterranean. It's going to raise the temperature of that volume a few billionths of a degree, if that. So, no, we can't.

Re: Record-breaking neutrino is most energetic ever detected

#29
post #25

For context, 120 PeV is about 10% the kinetic energy of a ping pong ball during typical play.

Now, what will happen if you get hit by a ping-pong ball mass of 120 PeV neutrinos? 120 PeV is about 2e-16 grams, so a ping-pong ball will have about 1e16 of them. From nothing, to detectable, to lethal, to big boom? My intuition would be "detectable" but I don't know enough to do the maths. And by the way, I am using the mass-energy, not proper mass, because the question is crazy enough not to even consider what wou…

[deleted]

Re: Record-breaking neutrino is most energetic ever detected

#30
post #21

Earlier quoted context omitted.

Can we harvest that energy?

This particle spread this energy through a volume of seawater a few km deep in the Mediterranean. It's going to raise the temperature of that volume a few billionths of a degree, if that. So, no, we can't.

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.
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