6 ms·
For context, 120 PeV is about 10% the kinetic energy of a ping pong ball during typical play.
by antognini 2y ago
For context, 120 PeV is about 10% the kinetic energy of a ping pong ball during typical play.
- lnauta 2y agoOne 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.
- A_D_E_P_T 2y ago> typical body builder expends about 1 horse power while performing Close, but ackshually... Bodybuilders just oil up and pose in beauty pageants. 1 horsepower is basically one 250-pound bench press in one second. (550 foot pounds of work; the aforementioned bench press assumes a 2.2-foot stroke length.) Most bodybuilders and serious weight lifters can do that, but they can't keep it up for long.
- 01HNNWZ0MV43FF 2y agoIt must have been a very short amount of time. 2 HP is 1,500 watts, probably more light than all lightbulbs in my house combined.
- idlewords 2y ago1500 watts is about what an electric kettle uses.
- mr_toad 2y agoAmerican kettles. Kettles in hard core countries push 2300 to 2400 watts ;-)
- idlewords 2y agoSlow-boiled water gives superior flavor!
- kevin_thibedeau 2y agoKeeps the midichlorians from jumping out.
- moi2388 2y agoI always cook my water sous-vide
- wiredfool 2y agoMeh, Lidl sells 3200w kettles.
- Daneel_ 2y agoWhere are the three phase models?? Seriously though, a 15A kettle sounds great.
- SAI_Peregrinus 2y agoPhotonicinduction's 10-second kettle[1] managed about 10kW max (took around 5s to boil water) for a short time, 440V 23A. Then the resistance dropped, it went up to 16kW (426V 33A) and popped. 7-8kW (375V 19A to 400V 20A) seemed more sustainable. [1] https://www.youtube.com/watch?v=dDLw1Rx_cAI https://www.youtube.com/watch?v=dDLw1Rx_cAI
- rq1 2y agoParticle on steroids.
- zozbot234 2y agoFun fact, a typical horse exerts about 1 horse power of usable work while performing. That's so weird, I'm sure almost no one would've been able to guess that - but it's true. (To be clear, that's sustained effort over time, not just momentary. Athletically trained humans can do about 1 HP of peak momentary effort, and around 0.3 HP if sustained over time.)
- loeg 2y agoThat's an all-day number. Peak HP/horse is somewhere in the 6-15 range.
- mikepurvis 2y agoAnd a horse can do quite a bit more in peak as well— 1 HP is definitely meant to be the long term continuous output of a typical horse under load, especially a consistent load such as turning a millstone.
- wiredfool 2y agoTrack cyclists (sprinters, world class) do 2KW+ peak for a few seconds at a time. That's potentially ~3HP. (and while doing so, average more than 70kph over a 200m distance)
- somat 2y agoThe funny thing is that a typical horse probably has closer to 2 or 3 horsepower and a big chonkin draft horse up to 4 or 5 times. James Watt just picked the smallest possible value of horse when defining the unit so he could sell more steam engines. https://www.youtube.com/watch?v=7qxTKtlvaVE https://www.youtube.com/watch?v=7qxTKtlvaVE (donut, How Much Horsepower is a Horse?)
- m3kw9 2y agoCan we harvest that energy?
- AnimalMuppet 2y agoThis 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.
- the_arun 2y agoWhat 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.
- ars 2y agoIt's an enormous amount of energy packed into a single tiny particle. But it's still just a single tiny particle, so it's not a lot of total energy. It's like how you can lift a heavy weight for a second, but that's all you can do. You would need to be able to lift it for hours to be useful as a replacement for a crane. Same idea: Intensity vs total work.
- mr_toad 2y agoIf 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.
- calebio 2y agoFollowing 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 :) [0] https://en.wikipedia.org/wiki/Project_Sanguine https://en.wikipedia.org/wiki/Project_Sanguine
- whyenot 2y agoSo, 2,000 milliSchwarzeneggers if we use SI units?
- gattr 2y agoYes, but please observe SI rules [1]: it's millischwarzeneggers. > This means that they should be typeset in the same character set as other common nouns (e.g. Latin alphabet in English, Cyrillic script in Russian, etc.), following the usual grammatical and orthographical rules of the context language. For example, in English and French, even when the unit is named after a person and its symbol begins with a capital letter, the unit name in running text should start with a lowercase letter (e.g., newton, hertz, pascal) and is capitalised only at the beginning of a sentence and in headings and publication titles. [1] https://en.wikipedia.org/wiki/International_System_of_Units#Unit_names https://en.wikipedia.org/wiki/International_System_of_Units#...
- jihadjihad 2y agoRight, 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.
- grey413 2y agoA ping pong ball would be roughly 2 trillion trillion atoms, for reference
- deleted 2y ago[deleted]
- GuB-42 2y agoNow, 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.
- deleted 2y ago[deleted]
- dahousecat 2y agoSounds like a great topic for an xkcd video
- bauruine 2y agoThere is a what if about it. https://what-if.xkcd.com/73/ https://what-if.xkcd.com/73/
- antognini 2y agoThe mean free path of neutrinos through lead is around one light-year. So, taking the thickness of the body to be 1/2 a meter, you would expect the probability of any individual neutrino to interact with the body to be ~5 x 10^-17. So you'd ballpark have around a 20--40% chance that a single neutrino interacts with your body. It would probably cause a localized radiation burn. Detectable, but probably not lethal unless you got really unlucky with where it hit you.
- jl6 2y agoSo, according to basic Ant-Man theory, if I were hit by one of these, it should be like getting all that (10% of a) ping pong ball energy concentrated in a tiny spot, causing me to fly backwards across the room?
- BobaFloutist 2y agoI would expect it to be more likely to punch through skin than to actually propel you. But also neutrinos don't typically collide with things very easily, they're more likely to pass through you without you ever knowing.
- moffkalast 2y agoYeah there's no way it would be able to grip onto anything, probably more like the Bugorski case, where he stuck his head into a particle accelerator and a proton beam went right through his head.
- Aachen 2y agoI was thinking the same though. It doesn't interact often, but if it randomly does annihilate with another particle in your body, at such a small scale (subatomic) that force/pressure just destroys anything in its path no? Like a paint flake hitting a space ship. Or is it more like "light" (since they're iirc their own antiparticle), which is then absorbed by surrounding matter and turns into heat? In the wrong spot, this sounds to me like it kills you? Nothing to be afraid of, of course, for the reason you mentioned. Just wondering, xkcd "what if" style
- parineum 2y agoIsn't Ant-Man logic that he still has the same mass when he shrinks and, as such, can generate the same force? Unless you get thrown back by ping pong balls normally, I think you'd be fine.
- class700 2y agoAnd yet when he grows he still has enough strength to punch a leviathan out of the sky. I'm not sure there's such thing as ant man logic - It doesn't seem like it should result in strength both ways.
- s1110 2y agoDoes this count as "Americans will measure with anything but the metric system"?
- UltraSane 2y agoNo, it is called giving context.
- MathCodeLove 2y ago[flagged]
- tasty_freeze 2y agoAre you implying that people who use the metric system have an intuitive sense of what 120 PeV means?
- scotty79 2y agoThere'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.
- ahazred8ta 2y ago120 PeV is 0.020 of a Joule, or 20 milliwatt-seconds.
- xarope 2y agothe way I play ping pong (holding the paddle like an ice cream stick)? or the way a professional ping pong player plays (which probably means they are serving aces on me all day)?