From James Joyce's book Finnegan's Wake from the line "three quarks for muster mark"
BTW, Quark is a German cheese. It is kinda like pureed cottage cheese with a little sour cream added. I like it.
A proton can be divided into 2 Ups and a Down quark, and a neutron into 2 Downs and an Up quark. In general the quark is the elementary particle from which protons and neutron are formed.
The reason that protons are positive and neutrons have no charge is owed to the fact that quarks, which make up these particles, do not have integral charge. The charge of an up quark is +2/3, and the charge of a down quark is -1/3. When the charges of the quarks are added for the particles, we get the following: Proton = up quark + up quark + down quark = 2/3 + 2/3 - 1/3 = 4/3 - 1/3 = 3/3 = +1 Neutron = up quark + down quark + down quark = 2/3 - 1/3 - 1/3 = 2/3 - 2/3 = 0 (zero)
quark
Beta decay involves changing an up quark into a down quark (Beta+) or a down quark into an up quark (Beta-). This causes a neutron to change into a proton (Beta-) and emit a W- boson which decays into a beta particle (electron and electron antineutrino), or, with extra energy, it causes a proton to change into a neutron (Beta+) which emits a beta particle (positron and electron neutrino). Quarks are involved because protons and neutrons are comprised of quarks in sets of three, two up quarks and one down quark to form a proton, and two down quarks and one up quark to form a neutron.
The elementary particle for a neutron is called a quark. Neutrons are made up of three quarks: two Down quarks and one Up quark.
"Quark" is an English word for a type of cream cheese.
Quark
Quark.
a babylonian word meaning swarm of files
Quark (cheese)
quantum; quark
Quark
According to wiki, quark was once called as the 'parton', a term coined by Richard Feynman. At present, the word 'parton' is used as a collective term for the constituents of hadrons.
What about a Quark? or if you allow slang, a quake.
An antibottom quark (or b-bar quark) is the antiparticle of a bottom quark. It has the same mass as a bottom quark but opposite electric charge and other quantum numbers. When a bottom quark meets an antibottom quark, they can annihilate each other and produce energy.
Quark.
Finnegan's Wake by James Joyce