The Discovery of the Atomic Nucleus (3 of 15)

Episode 3 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 Ernest Rutherford conducted a historical experiment that revealed that most of the mass of an atom is concentrated in a tiny nucleus made of protons and neutrons.
This film is part of a series originally broadcast on Teachers' TV (www.teachers.tv....
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).
Join the conversation:
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LinkedIn: / stfc

[@taz4530]

Who else was annoyingly forced to watch this video by there teacher but ended up actually liking it

[@NeillyWheelie]

Of course, shut down tasks

[@lolllsdfkjllsflkhkjlfs]

ahahaha same lmaoooo :)

[@sh17an]

🤣

[@HonkerzGang]

same, but i didnt like it, it wasn't bad either tho

[@craftygamer5568]

yh i was forced to watch this by my teacher and i actually liked it lol

[@oscarwojcik6593]

Who else is watching this in lockdown homeschool

[@tame261tigergaming3]

Ikr

[@HonkerzGang]

nope

[@Hanii786.]

Yessssssss😭😭😭

[@nikitathestonedsagittari7478]

Who’s watching this for online school?

[@pearlyojo7933]

Whatching this in my live lesson

[@jb.lifestyle]

😩😩

[@zj_nc1239]

Same

[@equinerhi9549]

Me too 😂😩

[@alexytgaming601]

Is it just me or my science teacher sent me this

[@NickHiltermann]

Interesting that Rutherford's student Hans Geiger was the one who invented the instrument Cox was using to detect the radiation in the desk

[@scorpion89123]

Why is British Keanu Reeves teaching me atomic models

[@zoomerboomer3109]

Incredible that Ernst Rutherford and William Pickering (one of leading Apollo rocket scientists) Came from the same village, Havelock with only a couple hundred residents.

[@aceplayerMusic]

physics teacher gave me this :just kidding pretty interesting

[@Eye_Exist]

Question! What kind of device did they use to fire and distinquish the alpha particles? and similarly, what kind of devide were used to first split the atom? (i know the technical term is fission and it was caused by firing a neutron at a uranium atom, but my question is how could they deliberately fire a neutron and aim it at a target uranium atom?)

[@_tacos_101_]

Got sent here by my teacher for a lesson :/

[@EasyTouch8]

Watching this rn on a live call

[@oscarwojcik6593]

Same

[@EleosAnim]

81CSBLara: I watched the other video.. that compiled 1-5.. Failed.. Hahaha I downloaded it though.

[@justin.arrieta]

81CSBArrieta: Wouldn't have a clearer understanding of the structure of the nucleus without you, Ernest Rutherford.

[@dntforgthis]

Our teacher is indian, and i cant understand a word shes saying !!! ;$ Negatively charged particles, positively charged, we will learn all of that. her way "Negatwly chajd patklz, posetwly chajd, ve vill lean all o dat!"

[@mons7rata]

Lol

[@stevereaver]

Careful with that radio activity Brian, it was right next to the family jewels!

[@farmojo6483]

gotta love physics

[@paulgilbertlegaspi1011]

Mr. Rutherford hadavgreat dicovery that some paticles may bounce back.. awsome..-LegaspiChemEB1

[@Marytere8]

¡¡¡WOW 😃!!! Excelente vídeo, felicitaciones. Muchas gracias por compartir. Usaré éste vídeo para mis clases. Saludos desde México. P. D. Por favor manténlo al aire

[@samducto2314]

Like seriously? Where did these geniuses got their brains? SPLENDID DISCOVERY! DuctoChem81EB1

[@melfrenregualos6687]

Ernest Rutherford with the help of his students, Hans Geiger and Ernest Marsden, discovered the atomic nucleus. Ernest Rutherford and James Chadwick discovered the two particles of atomic nucleus, proton and neutron. - regualosChem51agc

[@abbegabriela7988]

1XASANJUAN: I've learned that in 1932, Rutherford and his colleague Chadwick discovered that the nucleus is made up of two particles: positively-charged protons and electricly neutral neutrons

[@dominickanoabbu2345]

1XE TANOY: Hmmmnnn,,... ' a sort of not newly introduced thing to me, yet, the thought of going deeper unto it is at work in me...:) I want to befriend CHEMISTRY.

[@nokey4762]

Whos in a live lesson

[@ExtremeRidersJodhpur]

I like D.r. Brian Cox

[@meggieweg2758]

Rutherford and his colleagues' discovery of the protons and neutrons provides us a better understanding of the atomic structure :) -WalagCHEMEB1

[@saraheduave3206]

Earnest Rutherford was known as the father of nuclear physics. Indeed, he was really an intelligent man. -EDUAVEChemEB1

[@reygallares3272]

If the neutrons is an apple and the electrons would be a kilometer away, then the illustration in books about the atom are incorrect? hmmm... - Gallares CHEM81 EB1

[@judyannparaiso4622]

Scientifically interesting discovery because it gave insight into the atoms.. -Paraiso Chem51 AGC

[@almarieamores2918]

1.1 Amores: Well explained Mr. Cox! Thank you for sharing this relative infos about Higgs boson. I hope you make more videos about this topics.

[@gerilleangellie]

It's great to know what these brilliant men have discovered. -GabutanCHEM81EB1

[@seanchristopherelot5072]

81CSBElot: What would be the world today if it wasn't discovered by the greatest minds of science ?

[@biancanovela3365]

Dr. Cox has a creative way of illustrating the topic in this video _NOVELA CHEM52 AGB

[@SurprisedDivingBoard-vu9rz]

Is it true only protons have real mass. Neutron and electrons are hollow spheres. Is it true that neutrons spin twice faster than that of electrons. Just like the nucleus has a huge gap between electrons and nucleus of the atom. Ultimately something has to be hollow.

[@chadaemano636]

1XEEMANO: I must admit the guy is quite a distraction but the video gives me the idea that an atomic nucleus is much, much smaller than an atom. Wishing to see an atomic nucleus with my naked eye but it's seems impossible.

[@johnmichaeltacna6119]

1XETACNA: Brilliant thinkers hundred years later ! Whoa, do we have such people today ? :)

[@angelicrulona5373]

1XARULONA: Simply tells us that the answer to the unknown lies on one's perseverance.

[@johnmarkpajo1687]

WAW! more things to learn in CHEMISTRY =D IT"S AMEEYCHING HUH! PAJO, CHEM 52 AGB

[@vince.bragat]

81CSBBragat: Thanks to Ernest Rutherford for the astonishing discovery

[@val-edhomes5959]

The discovery of Sir Rutherford made a huge help in science. SaburaoChemEB1

[@zustzu9013]

Good information

[@simons901]

i'm obviously missing something! why do all replica's of Rutherford's alpha particle (helium nuclei) experiments only show particles aimed through a thin barrier material towards a detector located horizontal to the source? I believed most helium particles would be sent up the way in air unless they hit something on route - making more sense to have the detector above the radiation source outlet pointing up the way! - Otherwise good experiment.

[@psychodave0]

as above, it is nothing to do with antimatter. If antimatter and matter were annihilating (NOT COMBINING), a huge amount of energy would be released. the distance between is comprised of empty space. That is, a vacuum. There are no detectable particles. It is as simple as that. (of course, this is not the full picture due to electrons having wave-particle duality, but this is a detail best left to actual physicists)

[@holykylers]

It excavated my previous knowledge on atoms -LAUZON CHEM81 EB1

[@physicsno1]

an alpha particle is a combination of two protons and two neutrons that are ejected from the nucleus of a radioactive atom. alpha radiation is the most dangerous to your health if injested because its very ionising(i.e can make healthy cells become cancerous). the good thing is that it's not very penetrative. (can't get through skin and can only travel 5cm through air.)

[@dgman6579]

A Nucleus is a big egg with lot of protons and electrons.. hehehe ^_^ MorenoChemEB1

[@simons901]

- also what about entanglement (particles bumping around with each other after defecting off nuclei within the material encasing the radiation source) oh what happens if the source material is removed or the barrier material removed? I can't find examples anywhere hmmm!

[@ejmoo4292]

hoooh sa hinaba haba ng process sa paglike... unfortunately wla japn kalike mao comment nalng -margaret tolentin chem 52 AGA

[@johnpaulpanuncial1534]

The Discovery of Atomic nucleus was cool- PanuncialChem52AGB

[@nikkolancegalarrita760]

If there's an Alpha-Particle Scattering Experiment, how come there's no "Beta-Particle"? Or is there one? Kidding aside, I'm more acquainted in Rutherford's desk - it's a bit radioactive. (For classroom purpose: This is Nikko Galarrita - XE)

[@Orenotter]

If that were the case, racastilho, there would have been a greater, predictable, amount of rebound. Not all, but significantly more than experienced.

[@rodelcatubigan3249]

1XECATUBIGAN: great discoveries of such small things..

[@marywingievalde4254]

this video widens my knowledge about nucleus. --ValdeChemEB1

[@ReyAce123]

81CSBAcosta: rutherford discovered that most of the atom is mostly empty mk :)

[@nikkinatan7753]

1XENATAN i like the presentations it helped me a lot to understand more about the atomic nucleus

[@billyx333]

didnt read all these comments but my take is that the results wouldve been reversed if that were the case, all of them would rebound and 1/8000 would pass through (wow 9 months late oh well)

[@armanalfabeto6917]

why gold foil was used? why not silver ? -alfabeto Chem 51 AGC

[@presciousairaescrupulo3286]

Sir Rutherford's experiment is so direct and simple that showed nature what the atomic structure is, which is a very big help in the study of matter and what it is composed of. -Escrupulo CHEM 81 - EB1

[@racastilho]

Good point, but I was thinking of solid balls with gaps between them. The alpha particles to pass through the gaps, not throught the atmos themselves... Thanks for your reply!

[@racastilho]

Why did they discard the possibility of the atoms being indeed solid, hard balls, and that the empty space between them was the cause for the alpha particles go through the gold plate?

[@antoniotan1489]

Very patient in observing the particles. AntonioTan Chem51 AGC

[@iamnotciaran3497]

Lord Rutherford was from New Zealand in the north Island and did all of his shit in Christchurch College

[@chummyenerio849]

1XEENERIO: Radioactivity has been really useful :)

[@kwinnisik]

1.1 ISIK: Remembered learning about this in my Chemistry class. Rutherford is a genius!

[@Marytere8]

Thanks to the observation of his students, Rutherford reached his conclusions🤴🏼🤴🏼

[@kateserina7424]

rutherford is really smart like seriously! -serina chem81EB1

[@zetasky]

Thank you for uploading this video!

[@aussie56]

Definitely using this video for my high school physical science course tomorrow. Thank you Brian Cox and your sexy sexy intelligence!

[@RichtoffenRoach]

@NANOFORGE So those pictures about atoms that i've seen is a lie? How can they play with them? Nanotechnology! Ca you please enlighten me?

[@MrEyeshield210]

Woah, a particle accelerator.. it's more interesting topic-tan.w chem51agc

[@jeremyabanes4805]

1XAABANES: oohh. nucleus is made up two kind of atoooms. hihi

[@rusurazvan]

i still dont get it, he says just a part of atoms get throught but th eother part ot, that means we left a part of us int the wall?

[@aidanbuckner3936]

helo

[@kimsuarez5267]

I really like Dr.Cox and the way he explain -SuarezChemEB1

[@markchristianmaligmat7340]

81CSBMaligmat: nice experiment sir rutherford :)

[@ExplodingHeadGiraffe]

Protons and Neutrons constitute the nucleus. -Borja Chem 51 AGC

[@carltan5391]

I salute the people behind those discoveries. -TANchemEb1

[@markgonzaga4275]

1XE GONZAGA: that was easy, why did I never think of that.. heheehehe

[@ericscerri]

Rutherford derided chemistry and yet was awarded the Nobel prize for chemistry! see the great book, Eric Scerri, The Periodic Table, Its Story and Its Significance, Oxford University Press, 2007

[@glennacz1041]

1:1 -NACION: Thank you Dr. Cox for sharing your knowledge/ideas. I learn something new in every episode. “At the heart of every atom lives a nucleus.”

[@Marytere8]

I would like more "in the nucleus of every atom there is a heart"❤⚛️🤗

[@cidlampios6384]

81CSBLampios: Respect for Ernest Rutherford.

[@imeldahelenacapapas9705]

IXACAPAPAS: rutherford is so intelligent and wise :)

[@dersenseawerd8943]

OHH ITS NICE TO KNOW NEW DISCOVERIES. MAGDUGO KEVIN POLL CHEM 52-AGA

[@headermaycarabanes7240]

IXACARABANES: rutherford is so smart and thanks to him!

[@tomgabrielpahunang6867]

Atom is the BEST HORA! - Tom Pahunang Chem 51 AGC -

[@peterviclora8921]

Cool discovery. What's more within the atom? Basi naa pa. hahaha.. - St. Peter Vic Lora ( Chem 1.1 - XA )

[@KartikPatel-nt4ff]

😅😮😅😅😮😅😅😅😅well ingormeti0n.Good show more content 😅😅😅

[@kimberlyfaithlaina7321]

The Nucleus is the fundamental part of an atom -Laina 51 AGC

[@Orenotter]

I think that speaks a great deal to just how amazing our universe is. So much of it is counter-intuitive, yet if we do the math, it all makes sense. It's just fascinating and totally brilliant.

[@ollieoniel]

1 in eight thousandth isnt that within reasonable error? and what about background radiation? this i think is the stupidest experiment in history

[@pamelaloiscahucom9353]

Atom is somehow an empty space. What? _Cahucom52agb

[@Hazelle1024]

Sir Rutherford is a smart guy! -AllorinChemEB1

[@TheAnicu18]

i want to visit Manchester. how i wish though. Rutherford is such a genius person. :)) -Gunting71ACB

[@manchester26m]

A little factoid - The particle animations are created using a program called "Particle illusion"

[@JustMaw9]

81CSBMalazarte: Rutherford is a brilliant man

[@aries8212]

Brilliant. People should think like this. XD so complex.

[@loredguzman1340]

nucleus is compose of positively charge proton and a neutral charge called neutron. DalapagChemEB1

[@RichtoffenRoach]

HOW THE FUCK CAN THEY SEE THE FUCKING ELECTRON? HOW DO THEY MEASURE IT? I MIGHT NEVER KNOW

[@karenmaejariolne2509]

Rutherford's idea of the atomic nucleus is very ASTONISHING and AMUSING :D -Jariolne71ACB

[@nambiaab]

because they are moving in the same direction and they have enough space in between them.

[@almann1979]

the most remarkable fact here is that brian cox really was the keyboard player for D:ream