sentences:  There he investigated stress effects of motions, sound and wind blast, but his main focus was on bionics, a term he coined in 1958.The term was officially used in 1960 as the title of a three-day symposium in September of that year.His work on bionics, and the USAF research on cyborgs, caught the attention of SF writer and aviation expert Martin Caidin, whose 1972 book "Cyborg" makes explicit reference to then-Major Jack Steele.