second law of black-hole mechanics — An Etymological Dictionary of Astronomy and Astrophysics

second law of black-hole mechanics

قانون ِ دوم ِ مکانیک ِ سیه‌چال

qânun-e dovom-e mekânik-e siyah-câl

Fr.: deuxième loi de la mécanique des trous noirs

The surface area of a black hole’s horizon can never decrease.

See also: → second; → law; → black hole; → mechanics.