Triple

Target class: test of special relativity
Context triple: [Kennedy–Thorndike experiment, instanceOf, test of special relativity]

• A. effect in special relativity
  An effect in special relativity is any physical phenomenon—such as time dilation, length contraction, or relativistic mass increase—that arises from the invariance of the speed of light and the relativity of simultaneity between inertial reference frames.
• B. forward physics experiment
  A forward physics experiment is a particle physics setup designed to study particles produced at very small angles relative to the beam direction, typically far from the interaction point, to probe phenomena such as diffraction, elastic scattering, and very low–momentum-transfer processes.
• C. object in general relativity
  An object in general relativity is any localized concentration of energy–momentum whose presence curves spacetime and thereby influences the motion of matter and light.
• D. flat space-time
  Flat space-time is a conceptual class representing a four-dimensional continuum with zero curvature, where the geometry is described by the Minkowski metric and special relativity holds exactly.
• E. relativistic wave equation
  A relativistic wave equation is a differential equation, such as the Klein–Gordon or Dirac equation, that describes how quantum fields or particles evolve in space and time in a way consistent with the principles of special relativity.
• F. None of above. chosen