Definition/Meaning | Word/Phrase |
---|---|

physicist born in Germany who formulated the special theory of relativity and the general theory of relativity; Einstein also proposed that light consists of discrete quantized bundles of energy (later called photons) (1879-1955) | Albert Einstein , Einstein |

arbitrary constant in the equations of general relativity theory | cosmological constant |

English theoretical physicist who applied relativity theory to quantum mechanics and predicted the existence of antimatter and the positron (1902-1984) | Dirac , Paul Adrien Maurice Dirac |

English astronomer remembered for his popular elucidation of relativity theory (1882-1944) | Eddington , Sir Arthur Stanley Eddington |

generalization of special relativity to include gravity (based on the principle of equivalence) | Einstein's general theory of relativity , general relativity , general relativity theory , general theory of relativity |

physical theory of relativity based on the assumption that the speed of light in a vacuum is a constant and the assumption that the laws of physics are invariant in all inertial systems | Einstein's special theory of relativity , special relativity , special relativity theory , special theory of relativity |

phenomenon located at a single point in space-time; the fundamental observational entity in relativity theory | event |

hypothetical unit in theory of relativity | fourth dimension |

(physics) the principle that a measured quantity of mass is equivalent (according to relativity theory) to a measured quantity of energy | mass-energy equivalence |

celebrated experiment conducted by Albert Michelson and Edward Morley; their failure to detect any influence of the earth's motion on the velocity of light was the starting point for Einstein's theory of relativity | Michelson-Morley experiment |

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