The building blocks of the Universe

Perimeter Inst. public talk

Study matter and its motion through spacetime...

Moderators: Calilasseia, ADParker

The building blocks of the Universe

#1  Postby newolder » Nov 08, 2018 6:19 pm

Perimeter Institute for Theoretical Physics

Streamed live 18 hours ago

In her public lecture at Perimeter Institute on Wednesday Nov. 7, Phiala Shanahan will introduce the audience to the subatomic realm and describe what supercomputer calculations of quarks and gluons can reveal about the origins of mass, the primordial nuclear reactions that power the Sun, and the nature of the elusive dark matter that permeates the universe.

I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops. - Stephen J. Gould
User avatar
newolder
THREAD STARTER
 
Name: Albert Ross
Posts: 7308
Male

Country: Feudal Estate number 9
Print view this post

Ads by Google


Re: The building blocks of the Universe

#2  Postby newolder » Nov 08, 2018 7:47 pm

FFS! Someone get that woman the computer she wants! Much cheaper than an election cycle. :rolleyes:
I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops. - Stephen J. Gould
User avatar
newolder
THREAD STARTER
 
Name: Albert Ross
Posts: 7308
Male

Country: Feudal Estate number 9
Print view this post

Re: The building blocks of the Universe

#3  Postby LucidFlight » Nov 09, 2018 7:57 am

I've just realised something. I need a coffee mug with the Standard Model Lagrangian printed on it.
OFFICIAL MEMBER: QUANTUM CONSTRUCTOR CONSCIOUSNESS QUALIA KOALA COLLECTIVE.
User avatar
LucidFlight
RS Donator
 
Name: Kento
Posts: 10792
Male

Country: UK/US/AU/SG
United Kingdom (uk)
Print view this post

Re: The building blocks of the Universe

#4  Postby LucidFlight » Nov 12, 2018 1:48 pm

Right, so, I looked into this and, apparently, the coffee mug is only available from the CERN gift shop. As it happens, I have a contact at CERN who can send me one (if they're still available). This could go down as one of the most nerdy acquisitions of the year.

:cheers:
OFFICIAL MEMBER: QUANTUM CONSTRUCTOR CONSCIOUSNESS QUALIA KOALA COLLECTIVE.
User avatar
LucidFlight
RS Donator
 
Name: Kento
Posts: 10792
Male

Country: UK/US/AU/SG
United Kingdom (uk)
Print view this post

Re: The building blocks of the Universe

#5  Postby LucidFlight » Dec 17, 2018 3:58 pm

Nerdiest acquisition of the year:

Image
OFFICIAL MEMBER: QUANTUM CONSTRUCTOR CONSCIOUSNESS QUALIA KOALA COLLECTIVE.
User avatar
LucidFlight
RS Donator
 
Name: Kento
Posts: 10792
Male

Country: UK/US/AU/SG
United Kingdom (uk)
Print view this post

Re: The building blocks of the Universe

#6  Postby newolder » Dec 17, 2018 4:52 pm

La geek, c'est chic. A handy link, if one were needed, to help with the inevitable questions.
I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops. - Stephen J. Gould
User avatar
newolder
THREAD STARTER
 
Name: Albert Ross
Posts: 7308
Male

Country: Feudal Estate number 9
Print view this post

Re: The building blocks of the Universe

#7  Postby LucidFlight » Dec 18, 2018 2:25 am

newolder wrote:La geek, c'est chic. A handy link, if one were needed, to help with the inevitable questions.

Why, that is a handy and neat summary. Thank you.

Image
Bonus nerd points: CERN hi-viz jacket with "flow control" on the back.
OFFICIAL MEMBER: QUANTUM CONSTRUCTOR CONSCIOUSNESS QUALIA KOALA COLLECTIVE.
User avatar
LucidFlight
RS Donator
 
Name: Kento
Posts: 10792
Male

Country: UK/US/AU/SG
United Kingdom (uk)
Print view this post

Ads by Google


Re: The building blocks of the Universe

#8  Postby surreptitious57 » Dec 18, 2018 2:30 am


Video sounds interesting so will watch it later some time

I like the mug but not because of the equations but the contrast between the black and the white
A MIND IS LIKE A PARACHUTE : IT DOES NOT WORK UNLESS IT IS OPEN
surreptitious57
 
Posts: 10191

Print view this post

Re: The building blocks of the Universe

#9  Postby surreptitious57 » Dec 18, 2018 2:33 am


The jacket however is a no no because the logo and colours are just too bland
A MIND IS LIKE A PARACHUTE : IT DOES NOT WORK UNLESS IT IS OPEN
surreptitious57
 
Posts: 10191

Print view this post

Re: The building blocks of the Universe

#10  Postby LucidFlight » Dec 18, 2018 2:34 am

I don't think it's meant to be fashionable, surr!

:smile:
OFFICIAL MEMBER: QUANTUM CONSTRUCTOR CONSCIOUSNESS QUALIA KOALA COLLECTIVE.
User avatar
LucidFlight
RS Donator
 
Name: Kento
Posts: 10792
Male

Country: UK/US/AU/SG
United Kingdom (uk)
Print view this post

Re: The building blocks of the Universe

#11  Postby surreptitious57 » Dec 18, 2018 3:38 am


No but council workers over here wear orange or yellow ones so they could jazz them up a little
A MIND IS LIKE A PARACHUTE : IT DOES NOT WORK UNLESS IT IS OPEN
surreptitious57
 
Posts: 10191

Print view this post

Re: The building blocks of the Universe

#12  Postby LucidFlight » Dec 18, 2018 5:44 am

All right, I'll let them know. Thanks for the advice, surr!
OFFICIAL MEMBER: QUANTUM CONSTRUCTOR CONSCIOUSNESS QUALIA KOALA COLLECTIVE.
User avatar
LucidFlight
RS Donator
 
Name: Kento
Posts: 10792
Male

Country: UK/US/AU/SG
United Kingdom (uk)
Print view this post

Re: The building blocks of the Universe

#13  Postby socratus » Feb 21, 2020 2:50 pm

newolder wrote:FFS! Someone get that woman the computer she wants!
Much cheaper than an election cycle. :rolleyes:


Quarks and gluons cannot be taken out of proton and therefore
all calculations by supercomputer is a child game of big scientists.
socratus
 
Name: sadovnik
Posts: 22

Country: israel
Israel (il)
Print view this post

Re: The building blocks of the Universe

#14  Postby newolder » Feb 21, 2020 2:58 pm

socratus wrote:
newolder wrote:FFS! Someone get that woman the computer she wants!
Much cheaper than an election cycle. :rolleyes:


Quarks and gluons cannot be taken out of proton and therefore
all calculations by supercomputer is a child game of big scientists.


The quark-gluon plasma is an active field of research in accelerators like those at CERN:

Heavy ions and quark-gluon plasma

CERN physicists collide heavy ions to free quarks - recreating conditions that existed in the universe just after the Big Bang

For a few millionths of a second, shortly after the Big Bang, the universe was filled with an astonishingly hot, dense soup made of all kinds of particles moving at near light speed. This mixture was dominated by quarks – fundamental bits of matter – and by gluons, carriers of the strong force that normally “glue” quarks together into familiar protons and neutrons and other species. In those first evanescent moments of extreme temperature, however, quarks and gluons were bound only weakly, free to move on their own in what’s called a quark-gluon plasma.

To recreate conditions similar to those of the very early universe, powerful accelerators make head-on collisions between massive ions, such as gold or lead nuclei. In these heavy-ion collisions the hundreds of protons and neutrons in two such nuclei smash into one another at energies of upwards of a few trillion electronvolts each. This forms a miniscule fireball in which everything “melts” into a quark-gluon plasma.

...

More @ CERN link
I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops. - Stephen J. Gould
User avatar
newolder
THREAD STARTER
 
Name: Albert Ross
Posts: 7308
Male

Country: Feudal Estate number 9
Print view this post

Re: The building blocks of the Universe

#15  Postby Blackadder » Feb 21, 2020 2:59 pm

socratus wrote:
newolder wrote:FFS! Someone get that woman the computer she wants!
Much cheaper than an election cycle. :rolleyes:


Quarks and gluons cannot be taken out of proton and therefore
all calculations by supercomputer is a child game of big scientists.


Big scientists? How big? Are we talking above average height or skyscraper size? Hawking was a small scientist, so is he excluded from this game?
That credulity should be gross in proportion to the ignorance of the mind that it enslaves, is in strict consistency with the principle of human nature. - Percy Bysshe Shelley
User avatar
Blackadder
RS Donator
 
Posts: 3737
Male

United Kingdom (uk)
Print view this post

Ads by Google


Re: The building blocks of the Universe

#16  Postby socratus » Feb 21, 2020 3:03 pm

socratus wrote:
newolder wrote:FFS! Someone get that woman the computer she wants!
Much cheaper than an election cycle. :rolleyes:


Quarks and gluons cannot be taken out of proton and therefore
all calculations by supercomputer is a child game of big scientists.


Strange World Of Quarks, Gluons, Described By Physicist
Date:
February 23, 2008
Source:
Massachusetts Institute of Technology
----
Several factors make interactions between quarks and gluons more complicated to study.
For one, quarks are confined within larger particles, so they cannot be separated and
studied in isolation. Also, the force between two quarks becomes larger as they move
farther apart, whereas the force between a nucleus and an electron, or two nucleons
in a nucleus, grows weaker as their separation increases.

https://www.sciencedaily.com/releases/2 ... 143832.htm
socratus
 
Name: sadovnik
Posts: 22

Country: israel
Israel (il)
Print view this post

Re: The building blocks of the Universe

#17  Postby newolder » Feb 21, 2020 3:57 pm

Yes, socratus, quarks and gluons are confined in compound states but "Quarks and gluons cannot be taken out of proton" is not true - as the quark-gluon plasma experiments show.
I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops. - Stephen J. Gould
User avatar
newolder
THREAD STARTER
 
Name: Albert Ross
Posts: 7308
Male

Country: Feudal Estate number 9
Print view this post

Re: The building blocks of the Universe

#18  Postby Fallible » Feb 21, 2020 8:14 pm

But is here the kindergarten for babies ?
She battled through in every kind of tribulation,
She revelled in adventure and imagination.
She never listened to no hater, liar,
Breaking boundaries and chasing fire.
Oh, my my! Oh my, she flies!
User avatar
Fallible
RS Donator
 
Name: Alice Pooper
Posts: 51575
Age: 47
Female

Country: Engerland na na
Canada (ca)
Print view this post

Re: The building blocks of the Universe

#19  Postby socratus » Feb 22, 2020 4:10 am

newolder wrote:Yes, socratus, quarks and gluons are confined in compound states
but "Quarks and gluons cannot be taken out of proton" is not true - as the quark-gluon plasma experiments show.


Heavy ions and quark-gluon plasma
CERN physicists collide heavy ions to free quarks - recreating
conditions that existed in the universe just after the Big Bang
#
In these heavy-ion collisions the hundreds of protons and neutrons
in two such nuclei smash into one another at energies of upwards
of a few trillion electronvolts each. This forms a miniscule fireball
in which everything “melts” into a quark-gluon plasma.
https://home.cern/science/physics/heavy ... uon-plasma
#
In this hot “melt” soup everything is a quark-gluon plasma.
Now try to create a simple electron, proton, atom, . . . cell . . .
simple living brings . . . from this hot “melt” soup during 14 billion years . . .
It will take an infinite time (nobody can limited the time of creation in this scenario)

Sorry, in my opinion CERN / LHC, Big-Bang are only scientific fictions
=====
socratus
 
Name: sadovnik
Posts: 22

Country: israel
Israel (il)
Print view this post

Re: The building blocks of the Universe

#20  Postby Macdoc » Feb 22, 2020 5:04 am

Who gives a fuck about your ill informed "opinion" /fantasy
....you are just a prolific internet troll of no value to the community.
...not even as a chew toy. :coffee:
Travel photos > https://500px.com/macdoc/galleries
EO Wilson in On Human Nature wrote:
We are not compelled to believe in biological uniformity in order to affirm human freedom and dignity.
User avatar
Macdoc
 
Posts: 17156
Age: 72
Male

Country: Canada/Australia
Australia (au)
Print view this post

Next

Return to Physics

Who is online

Users viewing this topic: No registered users and 1 guest