Roger Boisjoly
Roger Mark Boisjoly was an American mechanical engineer, fluid dynamicist, and an aerodynamicist. He is best known for having raised strenuous objections to the launch of the Space Shuttle Challenger months before the loss of the spacecraft and its crew in January 1986. Boisjoly correctly predicted, based on earlier flight data, that the O-rings on the rocket boosters would fail if the shuttle launched in cold weather. Morton Thiokol's managers decided to launch the shuttle despite his warnings, leading to the catastrophic failure. He was considered a high-profile whistleblower.
25 April 1938
Born on the same birth date (25 April 1938): Ton Schulten
Born on the same birth day (25 April): Barbara Rittner • Bob Gutowski • Felix Berezin • Finn Helgesen • Joel Brand • John Moisant • Johnny Craig • Jon Kyl • Joyce Ricketts • Louis IX of France • Mark Bryant (basketball) • Paul Wassif • Róisín Shortall
Born in the same month (April 1938): Adam Raphael • Bart Giamatti • Betty Cuthbert • Duane Eddy • Gani Fawehinmi • Gerry Baker • Hso Khan Pha • Iris Johansen • Issey Miyake • Manfred Kinder • Ronald H. Miller • Spencer Dryden • Steven Bach • Viktor Chernomyrdin