A gradual decrease in effectiveness.

The supposed tendency of warmer water to freeze more quickly than colder water.

The phenomenon whereby the greater the expectation placed upon people is, the better they perform.

A phenomenon encountered in interferometry that is elicited by rotation. The Sagnac effect manifests itself in a setup called a ring interferometer. A beam of light is split and the two beams are made to follow the same path but in opposite directions. To act as a ring the trajectory must enclose an area. On return to the point of entry the two light beams are allowed to exit the ring and undergo interference. The relative phases of the two exiting beams, and thus the position of the interference fringes, are shifted according to the angular velocity of the apparatus.

(chemistry) The labilization (making unstable) of ligands which are cis to certain other ligands.

(chemistry) The labilization (making unstable) of ligands which are trans to certain other ligands.

greenhouse effect

The supposed phenomenon by which listening to Mozart's music may induce a short-term improvement in spatiotemporal reasoning or in mental performance generally.

The effect whereby the voting preference of a neighbourhood tends to be formed by consensus based on personal connections between residents.

A physiological phenomenon in fish hemoglobin, whereby an increased proton or carbon dioxide concentration (lower pH) lowers hemoglobin's affinity and carrying capacity for oxygen.