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quark    音标拼音: [kw'ɑrk]
n. 一种假设的素粒子

一种假设的素粒子

quark
n 1: (physics) hypothetical truly fundamental particle in mesons
and baryons; there are supposed to be six flavors of quarks
(and their antiquarks), which come in pairs; each has an
electric charge of 2/3 or -1/3; "quarks have not been
observed directly but theoretical predictions based on
their existence have been confirmed experimentally"
2: fresh unripened cheese of a smooth texture made from
pasteurized milk, a starter, and rennet [synonym: {quark cheese},
{quark}]


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  • Whats inside a quark? | Questions | Naked Scientists
    Chris - So could these things be sitting in some other bizarre dimension that we see it in the dimensions that we're familiar with interacting with, but there are other dimensions that we can't see, they're hidden from us let's say And that's where actually the thing that gives the quark its existence is sitting
  • HOW DOES AN UP QUARK TURN INTO A DOWN QUARK?
    An imaginary picture of the hydrogen atom, the proton is composed of two red up quarks and one blue down quark with the electron being a yellow point What do you suppose the code is that mixes the electron with one of the red quarks turning into a blue quark and thus a neutron?
  • What do strange quarks do? | Naked Science Forum - The Naked Scientists
    A quark is a fast-moving point of energy There are several varieties of quarks Protons and neutrons are composed of two types: up quarks and down quarks Each up quark has a charge of +2 3 Each down quark has a charge of -1 3 The sum of the charges of quarks that make up a nuclear particle determines its electrical charge
  • Tetraquarks: new configurations of subatomic particles discovered
    Harry - Very simply a tetraquark is a particle made of two quarks and two antiquarks So, sort of four objects inside it basically, hence the tetra It probably requires a bit of unpacking though, because well, you might ask what's a quark? Well, every atom has a nucleus, and you probably know that the nucleus is made of protons and neutrons
  • Why do quarks, last less time, outside the composites particles they . . .
    We will also add EM force and energy The original particle composite, upon collusion, will be the original particle composites, plus relativistic mass and EM induction This may add a quark or two that may only exist under these unique lab conditions This intermediate and unstable state could explain the short life
  • If black holes stops time does white hole accelerate time?
    It is highly unlikely that gravity is the force that would drive a white hole More likely a critical density is reached within the confines of a black hole where the electromagnetic forces overcome gravitation for some as yet unknown reason It could be an imbalance in the distribution of quark charge
  • How does E=mc^2 relate to KE=0. 5mv^2? | Naked Science Forum
    I think they are measuring different things KE=0 5mv^2 shows the relation between an object's kinetic energy to its speed and mass
  • Why would something turn black upon combustion burning?
    when an object is burned, such as wood, chicken, etc , the object turns black because of the carbon residue left behind
  • Helium filled basketball? | Naked Science Forum - The Naked Scientists
    It would bounce slightly higher for two reasons: The helium is lighter than air so the ball will have slightly more uplift for it's weight so feel like it was in less gravity - so bounce higher (if you throw it at the ground at the same speed rather than drop it from a height)
  • How is density related to refractive index? | Naked Science Forum
    Density is only a factor but I think it is fair to say that the refractive index will correlate with density In interstellar space the gas and ion density is very low but the greater the density, the higher the refractive inde





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