Me too!

Until he starts writing mathematics. 😁

he is brilliant, its incredible

When the sun sends its neutrinos it's not sending the best. It's sending particles with lots of problems, and they're passing those problems through us. They're bringing faster than light movement, they're bringing new insights in particle physics, they change flavors, and some, I assume are antineutrinos.

Isn't faster than light speed impossible according to modern theories?

It isn't, dude. It has mass, then it is slower than light speed.

So I say: WE NEED TO BUILD A LEAD WALL.

Massa Cinzenta well he worded wrong they arrive earlier than photons because even though they are slower they don't interact with other particles scattered around in space or in the atmosphere unlike photons, since the photons interact they arrival time is prolonged.

This is one of those times when I'm not sure whether to give it a thumbs-up or a thumbs-down...

Hahah

Uh summa lama duma lama you assuming i'm a neutron. what i gotta do to get it through to you i'm . . . a neutrino.

A gentle soul

I was reading the comments only to find this comment !!!

That was extremely cute

@@naughtyadventuresofmcbrouh5410 suddenly gei

k

I was there - where were you all? Didn't you get the invitation?

"technically", we were _all_ there

but there was no "I" yet (and no 'was' either), except like that, between quotes

Maybe he's from the previous one

@@SirDictator There still is no "i". The only difference now is that the universe has become aware of its self.

Especially cause Gravity is much weaker.

Hahah

These hands too, yeah

Lol'ed at that 🤣

This was a very high quality video for something from 2010

I just realised it's 7 years old

I just realized it's 8 years old

@@davidgjam7600 feel old yet?

And now it's nine, people we are getting old

looks like strong force is forced , by force while weak force is not forced .

All 4 fundamental interactions are understood.

If I am not mistaken that photon into electron/positron thing requires a nearby charge that the photon zooms by. So maybe that's the answer, the photon "hits" that charge. not sure though it's a great question

Yes. Hence the mass.

Sixty Symbols

Veritasium

lol just saw this John Drummond

+Seth Hastings If I recall, the third law of thermodynamics claims that it's completely impossible to ever reach 0 kelvin. I'm guessing that's due to entropy.

+Seth Hastings We have been able to reach within a billionth of zero degrees Kelvin, which is pretty close. So neutrinos aren't the only reason why that would be impossible. If you were able to construct hypothetically a container that isolates its content from the rest of universe entirely i.e no radiations, no neutrinos, you would still not be able to reach absolute zero. That's because it's just theoretically impossible. And because of multiple reason. I will list one - In Quantum Mechanics, there's a fundamental principle known as Heisenberg Uncertainity principe which places an upper bound on certainity of momentum and position of particle i.e. you cannot precisely determine both the momentum and the position of the particle. This means that increasing your accuracy in measurement of either momentum or position would come at the expense of accuracy of the other. Now consider this, at absolute zero you would have no motion which would mean that you'd know both the position and momentum of the particle precisely. This is in direct violation of Heisenberg's uncertainity principle !

tachyons don't exist

And that's only half of them.

+Philip Shade That's what I thought!

Statistically speaking. There's a tiny, tiny chance the Neutrino is stopped within the first meter of those 4 lightyears.

ROGUE RONIN No not really, remember what he said at 0:17, you'd need 4 light years of lead to have a decent probability of stopping a neutrino. And the neutrinos wouldn't bounce either, they'd be absorbed by a neutron or proton.