(Encyclopedia) heat of combustion, heat released during combustion. In particular, it is the amount of heat released when a given amount (usually 1 mole) of a combustible pure substance is burned to…
(Encyclopedia) Heliodorus of EmesaHeliodorus of Emesahēˌlēōdôrˈəs, [key]Heliodorus of Emesaĕmˈəsə [key], fl. 3d cent., Syrian Greek writer. He wrote the romance Aethiopica, one of the oldest and…
(Encyclopedia) Hermas, Shepherd ofHermas, Shepherd ofherˈməs [key], Christian apocalyptic work, composed in Rome c.a.d. 139–a.d. 155. It is a collection of revelations given to Hermas, a devout…
(Encyclopedia) Heron of AlexandriaHeron of Alexandriahērˈŏn [key] or Hero, mathematician and inventor. The dates of his birth and death are unknown; conjecture places them between the 2d cent. b.c.…
(Encyclopedia) Hesychius of AlexandriaHesychius of Alexandriahēsĭkˈēəs [key], fl. 5th cent.?, Alexandrian grammarian. Hesychius is known as the compiler of an invaluable lexicon, a glossary of…
(Encyclopedia) Anthemius of TrallesAnthemius of Trallesănthēˈmēəs, trălˈēz [key], fl. 6th cent., Greek architect, engineer, and mathematician. By order of Emperor Justinian and with the aid of…
