(physics) A detector of particles and ionizing radiation which uses a photomultiplier to generate flashes of light

An observation that contradicts an accepted law or theory.

A systematic way of finding the answer to a question about the observable world.

Any scientific discipline concerned with the study of phenomena occurring in space, or with space flight.

A formal abstraction of a real-life system that omits less essential aspects of the system in order to make it amenable to scientific analysis.

plural of scientific model

Any of several fields of study involving the collection of physical evidence and its subsequent analysis.

(education) The humanities, social sciences and natural sciences, considered together.

(physics) The scintillation of a solvent molecule when a radioactive solute molecule undergoes beta decay and emits an electron

A flash of light; a spark. / (astronomy) The twinkling of a star or other celestial body caused by turbulence in the Earth's atmosphere.