nigr/a [...] ~a skatolo TEK SCI Aparato, organo aux sistemo, kies interna funkciado estas kasxita de la uzanto aux studanto. -> bloko.

• En la angla black box estas ankaux neformala sinonimo de flight recorder. Pri tiu senco mi legis strangan aferon en brita jxurnalacxo: ``... a black box flight recorder is so called -- even though it's orange -- because the concept of the flight recorder was invented by a man called Professor Gordon Black at Farnborough in 1948.'' (DAILY EXPRESS Saturday July 27 1996)