YouTube home Comedy Week on YouTube
Upload

Quarks | Standard Model Of Particle Physics

Best0fScience Best0fScience·200 videos
133,426
73,832
Like     Dislike 12

Sign in to YouTube

Sign in with your Google Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to like Best0fScience's video.

Sign in to YouTube

Sign in with your Google Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to dislike Best0fScience's video.

Sign in to YouTube

Sign in with your Google Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to add Best0fScience's video to your playlist.

Uploaded on Nov 10, 2009

http://www.facebook.com/ScienceReason ... The Standard Model of Particle Physics (Chapter 3): Up and Down Quarks

---
Please SUBSCRIBE to Science & Reason:
http://www.youtube.com/Best0fScience
http://www.youtube.com/ScienceTV
http://www.youtube.com/FFreeThinker
---

STANDARD MODEL OF PARTICLE PHYSICS:
http://www.youtube.com/user/Best0fSci...

1) First Second Of The Universe:
http://www.youtube.com/watch?v=4HXPYO...
2) Force And Matter:
http://www.youtube.com/watch?v=p5QXZ0...
3) Quarks:
http://www.youtube.com/watch?v=PxQwkd...
4) Gluons:
http://www.youtube.com/watch?v=ZYPem0...
5) Electrons, Protons And Neutrons:
http://www.youtube.com/watch?v=Vi91qy...
6) Photons, Gravitons & Weak Bosons:
http://www.youtube.com/watch?v=JHVC6F...
7) Neutrinos:
http://www.youtube.com/watch?v=m7QAaH...
8) The Higgs Boson / The Higgs Mechanism:
http://www.youtube.com/watch?v=1_HrQV...

The Standard Model of particle physics is a theory of three of the four known fundamental interactions and the elementary particles that take part in these interactions. These particles make up all visible matter in the universe.

Every high energy physics experiment carried out since the mid-20th century has eventually yielded findings consistent with the Standard Model.

Still, the Standard Model falls short of being a complete theory of fundamental interactions because it does not include gravitation, dark matter, or dark energy. It is not quite a complete description of leptons either, because it does not describe nonzero neutrino masses, although simple natural extensions do.

http://en.wikipedia.org/wiki/Standard...

---

UP QUARKS

The particle itself is a fundamental particle and is too small to be seen by any imaginable instrument of observation. So we instead represent the properties that allow the up quark to interact.

The central small dot represents the weak charge of the up quark. This charge entirely separate from electric charge gives rise to the Weak Nuclear Force. This force causes up quarks and down quarks to swap flavours and its typical range is much smaller than the diameter of a proton.

Surrounding that is a volume depicted as gold for the up quark. This represents the electric charge of the up quark, which has a positive charge of +2/3 units The electric charge is the generator of the Electromagnetic Force which has infinite range although the drop off in strength is pretty dramatic as we move away from the quark.

The larger volume of shifting red, green, and blue is meant to represent the color charge which generates the Strong Nuclear Force. This is the force that holds quarks together in a proton or neutron. And a residuum of this force holds the protons and neutrons together in the nucleus of atoms. This force is a hundred times stronger than the Electromagnetic force, but its range is limited to about the size of a proton.

DOWN QUARKS

The particle itself is a fundamental particle and is too small to be seen by any imaginable instrument of observation. So we instead represent the properties that allow the down quark to interact.

The central small dot represents the weak charge of the down quark. This charge entirely separate from electric charge gives rise to the Weak Nuclear Force. This force causes the down quark to change into an up quark, and its typical range is much smaller than the diameter of a proton.

Surrounding that is a volume depicted as purple for the down quark. This represents the electric charge of the down quark, which has a negative charge of -1/3 units The electric charge is the generator of the Electromagnetic Force which has infinite range although the drop off in strength is pretty dramatic as we move away from the quark.

The larger volume of shifting red, green, and blue is meant to represent the color charge which generates the Strong Nuclear Force. This is the force that holds quarks together in a proton or neutron. And a residuum of this force holds the protons and neutrons together in the nucleus of atoms. This force is a hundred times stronger than the Electromagnetic force, but its range is limited to about the size of a proton.

---

The Cassiopeia Project - making science simple!

The Cassiopeia Project is an effort to make high quality science videos available to everyone. If you can visualize it, then understanding is not far behind.

http://www.cassiopeiaproject.com
.

Loading icon Loading...

Loading icon Loading...

Loading icon Loading...

The interactive transcript could not be loaded.

Loading icon Loading...

Loading icon Loading...

Ratings have been disabled for this video.
Rating is available when the video has been rented.
This feature is not available right now. Please try again later.

Top Comments

  • abdul0333

    physics is amazing. I wish i had a better brain to understand it.

    · 77

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate abdul0333's comment.

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate abdul0333's comment.
  • Aki1011001

    Q. What did the 2 hydrogen atoms say to the oxygen atom?

    A: Water you doing here?!

    · 43

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate Aki1011001's comment.

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate Aki1011001's comment.

Video Responses


All Comments (165)

Sign in now to post a comment!
  • Irth Surpi

    i love physics its my life

    ·

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate Irth Surpi's comment.

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate Irth Surpi's comment.
  • abdul0333

    I would like to correct my self. You don't need a good brain to be good at physics. Hard work and determination can get you anywhere. I am now a representative of the student physics department at my college and knowledge of physics has vastly grown. I could not do basic algebra and now I can do calculus and logical maths and am able to understand published papers to some extent. Hard work can achieve anything :).

    · 4

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate abdul0333's comment.

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate abdul0333's comment.
    in reply to abdul0333 (Show the comment)
  • jiwel crafting

    why 16 yeras old ??

    ·

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate jiwel crafting's comment.

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate jiwel crafting's comment.
    in reply to Kuro Ashi no Sanji (Show the comment)
  • Kuro Ashi no Sanji

    lol you don't need a better brain to understand physics, you just need to love it and practice it, but if you're older than 16, it's too late to understand it

    ·

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate Kuro Ashi no Sanji's comment.

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate Kuro Ashi no Sanji's comment.
    in reply to abdul0333 (Show the comment)
  • vipin4541

    Very intresting topic

    ·

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate vipin4541's comment.

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate vipin4541's comment.
  • TheSisisspore

    *Snort* *snort*.

    ·

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate TheSisisspore's comment.

    Sign in to YouTube

    Sign in with your YouTube Account (YouTube, Google+, Gmail, Orkut, Picasa, or Chrome) to rate TheSisisspore's comment.
    in reply to Aki1011001 (Show the comment)
  • Loading comment...
Loading...
Loading...
Working...
Sign in to add this to Watch Later