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31 The emission or absorption of one particle by another corresponds to the dividing or joining together of strings.

32 In order to grope towards an understanding of them we have to grasp the abstruse notion of the particle sea.

33 This could make a difference if the field is not uniform at the scale of the particle.

34 Our present theories contain a number of quantities, like the size of the electric charge on a particle.

35 This corresponds to the fineness of face powder or an average particle size of about $ 0 microns.

36 There are no antiprotons or antineutrons, made up from antiquarks, except for a few that physicists produce in large particle accelerators.

37 Consider also, this kind of phenomenon affects not just photons, but every particle in every interaction.

38 There are three generations of neutrino just as there are of every other particle.

39 When lifted and placed against a transparent plastic sheet they would show up the tiniest particle.

40 This collision changes the velocity of the second particle, just as if there had been a force between the two matter particles.

41 But I tell you that it is a doubling in the energy of each individual photon-each particle of light-that is emitted.

42 The graded aggregate, in which a defined spread of particle sizes is represented, is considered ideal.

43 The strongest currents should define the largest stable particle size.

44 Members of three such generations have been discovered; until recently there was no evidence from particle physics to rule out more.

45 Hence, the particle size in samples and standards must be comparable.

46 It was expected that a similar equation would govern the proton, the only other supposedly elementary particle known at that time.

47 However, if a cosmic-ray particle collides with matter inside the magnetosphere neutrons can be ejected from the atoms in the matter.

48 For many years now builders of particle accelerators have also studied particle beams.

49 One of the quarks and one of the antiquarks meet and, in a process called annihilation, produce a W particle.

50 Rather than see this as a problem, the particle physicists see it as an opportunity.

51 From the combined results Thomas's group estimated an average particle size of 100 for the copper metal aggregates.

52 You see, Watson, if light is a particle, then it will travel at a speed determined by the emitter.

53 Compton proposed that the quantum of light could act as if it were a particle, and he christened this the photon.

54 As the particle is frosted with droplets of supercooled water, it begins the six-mile plunge to Earth.

55 It has come from experiments with high-energy muon neutrino beams at particle accelerators, and from lower-energy neutrinos at two nuclear reactors.

56 An infinite-dimensional Hilbert space arises even in the simple situation of the location of a single particle.

57 Yukawa realised that the short-range attractive force between nuclear particles could be explained as the exchange of a massive intermediate particle.

58 This dark matter is of special interest to the particle physicists.sentencedict .com

59 The larger the particle phi number the finer the particle.

60 I could see Phagu standing at a blackboard teaching particle physics.