A renowned expert in animal locomotion, he pioneered the study of biomechanics, revealing the secrets of animal movement and inspiring innovations in robotics and prosthetics.
Robert McNeill Alexander was a British zoologist and a leading authority in the field of biomechanics, renowned for his groundbreaking research on the mechanics of animal locomotion, particularly in dinosaurs. His formula for calculating dinosaur speed, the "dinosaur speed calculator," revolutionized the field of paleontology and earned him international recognition.
Alexander was born on July 7, 1934, in Lisburn, Northern Ireland, to Robert Alexander and Janet McNeill. His father was a chief engineer, and his mother was a novelist and playwright who wrote over 20 children's books and two opera libretti. He received his education at Tonbridge School and Trinity Hall, Cambridge, where he earned an MA and a PhD under the supervision of Professor Sir James Gray, FRS. He was later awarded a DSc by the University of Wales.
Alexander's academic career spanned over four decades, during which he held various positions. He began as a Lecturer at the University College of North Wales (now Bangor University) from 1958 to 1969 and later became Professor of Zoology at the University of Leeds from 1969 until his retirement in 1999. He was conferred the title of Emeritus Professor upon his retirement.
Alexander's research initially focused on fish, investigating the mechanics of swim bladders, tails, and fish jaw mechanisms. He later shifted his attention to the mechanics of terrestrial locomotion, particularly in mammals, and explored gait selection and its relationship to anatomy and the structural design of skeletons and muscles.
His work on dinosaur locomotion is perhaps his most notable contribution. Alexander developed a formula to calculate the speed of motion of dinosaurs, which was mathematically derived from the Froude number. This formula enabled scientists to estimate dinosaur gait and speed from trackways.
Alexander was appointed a Commander of the Order of the British Empire (CBE) in 1990 for his services to zoology. He was also a Fellow of the Royal Society (FRS).
Robert McNeill Alexander's pioneering work in biomechanics and paleontology has had a lasting impact on our understanding of animal locomotion and dinosaur behavior. His formula for calculating dinosaur speed has become a cornerstone of paleontological research, and his legacy continues to inspire new generations of scientists.
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