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ericcolumba favorited a video
(9 hours ago)
Islam versus democracy...
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The Standard Model of Particle Physics (Part 5): Electrons, Protons And Neutrons.
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• http://www.youtube.com/Best0fScience
• http://www.youtube.com/...
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The Standard Model of Particle Physics (Part 5): Electrons, Protons And Neutrons.
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• http://www.youtube.com/Best0fScience
• http://www.youtube.com/FFreeThinker
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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...
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ELECTRONS
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 electron to interact. The central small dot represents the weak charge of the electron. This charge entirely separate from electric charge gives rise to the Weak Nuclear Force.
This force causes radioactive decay and its typical range is much smaller than the diameter of a proton.
The larger volume of shifting purple is meant to represent the Electric Charge of the electron. This 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 electron.
The Electromagnetic Force is how electrons interact with other electrically charged particles and with magnetic fields. These interactions make the structure of atoms and molecules possible. This gives rise to almost all of the complexity that we see around us.
PROTONS
The Proton is composed of two up quarks and one down quark (as you can see from the tiny rings of color near the center of each quark.) The overall charge of the proton is positive and so we have given it a gold shell. (Note that we can simply add the charges of the individual quarks to get the charge of the proton).
The red, green, and blue colors of the quarks represent the color charge which generates the Strong Nuclear Force that holds them together. It comes in three different charges represented here by the three colors, and for different colors the force is attractive.
The mediator of the Strong Force (the particle that is exchanged in an interaction) is a gluon. We represent gluon exchange as the occasional wispy strings between the quarks. As you can see the gluons have color themselves, and each gluon exchange causes the quarks involved to swap color. Although we show the quark motion inside the proton as leisurely, they are actually traveling close to the speed of light.
NEUTRONS
The Neutron is composed of two down quarks and one up quark (as you can see from the tiny rings of color near the center of each quark.) The overall charge of the neutron is neutral and so we have given it a silver shell. (note that we can simply add the charges of the individual quarks to get the charge of the neutron. )
The red, green, and blue colors of the quarks represent the color charge that generates the Strong Nuclear Force that holds them together. It comes in three charges represented here by the three colors, and for different colors the force is attractive.
The mediator of the Strong Force (the particle that is exchanged in an interaction) is a gluon. We represent gluon exchange as the occasional wispy strings between the quarks. As you can see the gluons have color themselves, and each gluon exchange causes the quarks involved to swap color. Although we show the quark motion inside the neutron as leisurely, they are actually traveling close to the speed of light.
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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
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Kissing the Pink did a second performance of Last Film as it went up the charts and this is it...
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ericcolumba favorited a video
(4 days ago)
Complete video at: http://fora.tv/2009/10/20/Uncommon_Kn...
Former CIA Operative Robert Baer and syndicated columnist Victor Davis Hanson weigh Pres...
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Complete video at: http://fora.tv/2009/10/20/Uncommon_Kn...
Former CIA Operative Robert Baer and syndicated columnist Victor Davis Hanson weigh President Obama's decision to refrain from actively supporting Iranian opposition groups in the wake of that country's controversial June 2009 election.
Photo credit: Hamed Saber
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Does Iran possess the ability to produce nuclear weapons? Both Bob Baer and Victor Hanson agree that it does. On the questions that flow from this assertion, agreement is more difficult to find. What does Iran hope to accomplish by developing the bomb? Can the United States live with a nuclear Iran? Can Israel? Israeli Defense Minister Ephraim Sneh in an October interview asserted "If no crippling sanctions are in place by Christmas, Israel will strike...if we are left alone, we will act alone." Does Israel possess the ability to destroy the Iranian nuclear program?
With each month bringing another deception and diversion from Iran, what can the United States do to prevent a conflagration in the Middle East? - Hoover Institution
Robert Baer was a CIA case officer in the Directorate of Operations from 1976 to 1997, where he served in Middle Eastern countries, including Iraq and Lebanon. His latest book is The Devil We Know: Dealing with the New Iranian Superpower.
Victor Davis Hanson is a Senior Fellow at the Hoover Institution, Stanford University, a professor emeritus at California University, Fresno, and a nationally syndicated columnist for Tribune Media Services. He was a full-time farmer before joining CSU Fresno, in 1984 to initiate a classics program.
Peter M. Robinson is a research fellow at the Hoover Institution, where he writes about business and politics, edits Hoover's quarterly journal, the Hoover Digest, and hosts Hoover's television program, Uncommon Knowledge.
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uh
i sent you a story
the dead pigeon is a Nine Inch Nails music vid i made lolol
you make me laugh :D
uh can i be naughty?
i haven't finished it yet :S
doing toooo many things
i promise before the end of the week
like say;
once a week
you will get into the habbit of replying
without having the pressure of writing a long letter
how does that idea sound huh?
i am uploading a new vid
you gonna check it out?
uh
it is going to be more like a book
lol
oh oh oh no good
i'll try and wrap it up quickly
you know now hahaha
where is the vid 'for my atheist friends'?
i like to see it
you gonna accept me
lol
ERIC!!!
tis me maya hahaha x
all's well?