The Standard Model of Particle Physics (5 of 15)

Episode 5 of In Search of Giants: Dr Brian Cox takes us on a journey through the history of particle physics. In this episode we learn how particle physicists have developed a theory that can explain almost everything in the universe in terms of just 12 particles.
This film is part of a series originally broadcast on Teachers' TV (www.teachers.tv/video/23645).
The series was made with the support of The Science and Technology Facilities Council (www.scitech.ac.uk).

www.lhc.ac.uk - Official UK LHC website for public and schools.
www.particledetectives.net - School resources on the LHC, how science works and particle physics.
Films produced and directed by Alom Shaha (www.labreporter.com).

[@1xaburnea537]

I've learned a lot from this :)

[@MilletGtr]

this is so exciting!

[@PCGAMELIFE0]

I love this! I love this. I love this!!!

[@jplate8]

I was watching this video then at 1:12 I heard the dude say "hundred" I immediately thought Holy shit it's Brian Cox!

[@remoraid7]

The idea of quantum physics is that matter is not continuous, but made of tiny discrete fundamental particles that are indivisible.. We cannot cut them into half using a knife because the 'sharpness' of the knife is limited and can never cut quarks or electrons into half.. The only way to break these particles apart so that we can see what is inside of them is to smash them together..

[@BT12344]

Atoms; but subatomic particles are smaller than them- i.e. top quark, bottom quark (which makes up neutrons, and protons), electron, electron neutrino, charm quark, strange, quack, muon etc...

[@SuperMerlin100]

@pab7984 At smaller and smaller distance scales momentum become more and more uncertain. The chances that a particle will pick up enough speed to get out becomes ever greater. Basically at some point it would take a force stronger then any that exist to keep these particles in a small enough space.

[@powpanda]

@violentauntie Classical mechanics (the old laws) explain very accurately our world that we usually see - fairly large sized objects and low speed. When the speeds become sizeable relative to speed of light, classical physics completely fails, and we need a new model - relativistic mechanics. At extremely small sizes and low speeds we have quantum mechanics. At small sizes and large speeds - quantum field theory. None of them is right or wrong, they just fit reality better at that dimension.

[@SuperMerlin100]

@orlandorjames Because no chemical or even nuclear process could extract the energy out of the quarks. It would require breaking the bonds between the quarks, which would take far more energy input then you'd ever get out of it. This would also sent neuron on fire.

[@94dgrif]

Just wait two years to see what cool things they find! Like remember the Higgs Boson? Well.... ah never mind, I won't spoil it for you.

[@morgandude2]

@cheasea Absolutely correct!

[@tobby12347]

How does the LHC gather data? Dr. Cox described the detectors as "taking 600 million pictures a second" after the collision. But doesn't introducing so many photos effect the result of the experiment?

[@Mattsretiring]

I don't understand what is meant to be discovered by colliding protons. If it is know that protons are made of elementary particles (UQ and DQ) what is likely to come out the other side of a collision, except these particles?

[@simw7]

@pab7984 I guess quarks are just energy? idk and string theory those strings are like the DNA of the universe, the fundamental building blocks of the universe. so those strings are jus the smallest things imaginable cuz we'll never be able to see them, even with our most powerful microscopes that we have or we will ever have

[@BrianWilliamDoty]

Could you take an electron micrograph of the electron itself?

[@remoraid7]

If by collisions, we don't get more particles than we have originally smashed together, no matter how hard we smashed, we know that these particles are most probably fundamental or indivisible.. to give you an idea of the distances we are probing.. It's approximately 2.81794 x 10^-15 m.. Thats about 3 millionths of a billionth of a meter... That's cutting a meter into half about 47 times!

[@arshsingh1984]

finally switched it on today :-)

[@farenhai]

@shep312 Very clever!

[@clarisseannejavier5419]

1XAJAVIER: i love this video! I love chemistry

[@c00kiem0nster1999]

its physics

[@sidewaysfcs0718]

the world of the large , the stars , galaxies and stuff ... its limited to us ...we have a horizon ..we cant see past the cosmic microwave backround ...for several reason but the main one is the expansion of the universe but the world of the small ...is still strange and misterious to us. so i think its more important to discover everything we can about how particles work before we think about big stuff again.

[@elusiveone2007]

[@BrianWilliamDoty]

every particle type has it's own personality. Inside a detector it's a particle party.

[@gabrieljourdaindenissel4907]

SUPER VIDEO JE RECOMMANDE

[@victor2842]

BIEN DIT MON KIWI

[@michaeljohnsison5300]

1XE SISON: wow!

[@annacarmiladoctor793]

1XADOCTOR amazing!

[@comradestinger]

The sound at 53! IT's from a game named AIRFIX DOGFIGHTER!!!!!!

[@cheasea]

@sidewaysfcs0718 I agree, but really, I think we should focus on everything. We're a species of information, of discovery, that is what we do best and that is what we should focus on, only problem, we're still too dumb to understand that we yet don't understand. If our focus as a species was to discover the beauty of existence, instead of trying to take it for our own individual selves, then there would be no desire of hoarding it all, allowing us to experience the full depth of being

[@Gyroglle]

2:05 : Twenty-seven kilometres of tunne... in circumference?

[@hyperdrachen]

@Zayin1993 It is well over 9000.... kph

[@pab7984]

Interesting. But, isn't the idea of "no size" an oxymoron? If Quarks exist then they have a size. If they are physically "there" then they can be cut in half, and those "pieces" also can be cut in half...and so one and so forth, forever. No?

[@cheasea]

@jockedahl123 thank you

[@SamuelFaict.Filmmaker]

It sounded more like a Star Wars Tie Fighter Blaster.

[@pab7984]

I'm a lawyer, not a science person, but, If there is an infinity in both directions (big and small, or out and in?) then isn't there an infinite amount of particles to discover? The atom is made up of protons and neutrons, which are made of quarks, which are made of....??? Get my point? Then string theory says all matter and energy is made of tiny vibrating stings. But what are the stings made of? And what is what makes the strings made of? It's an infinity, right?

[@D0g63rt]

That is a pretty big hadron

[@armanalfabeto6917]

i hope they'll find out why the identical particles are heavier in difference. -alfabeto Chem 51 AGC

[@Wraithofvolsunga]

@shep312 TURBOPUNS!!!

[@Laikastar1]

so which is smaller, atoms or DNA?

[@G3N3S3R]

you are fucking kiddin right?

[@Asuperl33tninja]

@shep312 lol I see what you did there :P

[@Aeropher]

good series but to learn about quarks ill have to stick to my textbooks lol

[@comradestinger]

no sorry i ment 1:53

[@vermouth310]

Does anyone know where the four forces and the particles of the standard model come from? Please someone explain this. Explanations of the Big Bang given by physicists state it started from a "singularity", but then contradict themselves by saying they don't know anything about what happened prior to an infinitesimal part of a second from the beginning of the "bang". Then they start talking about cooling, etc., after that time, that produced "dust", blah blah blah. They then say that hydrogen came about, blah blah blah. OKAY, but where did the electron, proton, and neutron, come from to produce the element???? Where do all the exotic particles, quarks, leptons, bosons, etc. come from??? Please no BS!

[@manaeiou]

holy fk 600million frames/s...

[@MrLozable]

@shep312 OLD

[@sidewaysfcs0718]

newtons laws arent wrong ..they just dont explain in detail how gravity works ....

[@raahr]

sounded more like the clack of a billiard ball.

[@keggerous]

this guy looks young but hes got grey hair...kinda like this kid i went to school with. he was like 16 but had bunches of grey hair.

[@cheasea]

The awesome Carl Sagan was replaced by this kid....

[@kateserina7424]

how i wish im as smart as them haha -serina chem81EB1

[@featheredmusic]

Who are the 3 inch worms who disliked this video?

[@jchino723]

the outer is the source not theinner just trust me. factor that in for everything and it all makes sense. think about it. think the universe like a hologram a human would look out and be blinded by the outer wall and the sun would help light things around us my girl is deaf and if i stand in front of the sun shhe cant see my lips so think the original light source as the darkness of space we need stars to see around us like a hologram we are blinded by the spotlight that created us

[@keggerous]

oww man he looks pretty young....i bet when hes 90 he'll look like hes 40, but his hair will be as white as Gandolf's.

[@arina4030]

he’s cute

[@owaini-w9067]

yo chris come and find me

[@ChrisChen123]

Chika chika slim shady

[@RealityHurts923]

Im all for education but how exactly is this so important to loose sleep over?Are people that desperate to find the truth to existance?You will learn or you wont once you die.Thats it.