general_fact: 138 is the estimated number of ATP molecules produced by one molecule of fatty acid, for the mixture that comprises human adipose tissue.
math_fact: 138 is an Ulam number (Sloane's A002858).
trivia: 138 is the number of constellations of the Triakis tetrahedron.
historical_date: May 17th is the day in 1987 that an Iraqi Dassault Mirage F1 fighter jet fires two missiles into the U.S. Navy warship USS Stark, killing 37 and injuring 21 of her crew.