<prompt> Translate the following text to EnglishMurph Murphy ni mtu ambaye Edward H. Heineman, mtengenezaji wa ndege na mhandisi wa Douglas Aircraft katika miaka ya 1940 na 1950, anatoa sheria ya Murphy katika kitabu chake cha 1980 Ed Combat Aircraft Designer na Murph Murphy kutoka kwa Fred Johnsen, mwanahistoria wa Kituo cha Majaribio ya Ndege cha Jeshi la Anga.  <response>: Chatterbox was unable to obtain details of this story, but Murph Murphy is the person to whom Edward H. Heinemann, an aircraft designer and engineer for Douglas Aircraft in the 1940s and 50s, attributes Murphys Law in his Heinemanns 1980 autobiography, Ed Combat Aircraft Designer . Chatterbox got the poop on Murph Murphy from Fred Johnsen, the historian at the Edwards Air Force Flight Test Center. 