The History of Finger Nail Research by William Bean

A doctor named william bean meticulously tracked the rate of his own nail growth for 35 years. He published a series of scientific articles that appeared in 19 53 and all the way up until 19 80. If you wanted to grow nails as long as a six meter salt water crocodile, it would take about 60 thousand days,. But even if you could live that long, your nails would probably not keep growing at such a dependable rate indefinitely.