Bjarni Tryggvason Bjarni Tryggvason was born in 1945, in Reykjavik, Iceland. Mr. Tryggvason has about 4,000 hours of flight experience, holds an Airline Transport Rating and has been a flight instructor for 10 years. He is active in aerobatic flight and is qualified as Captain in the Tutor jet trainer with the Canadian Air Force. He enjoys scuba diving, skiing, and has made 17 parachute jumps. In 1982, he was part of a team that studied the sinking of the Ocean Ranger oilrig. He designed and led the aerodynamics tests for the wind pressures acting on the rig. Mr MacLean was one of the six Canadian astronauts selected in December 1983 and was back-up Payload Specialist to Steve MacLean on Mission STS-52, in 1992. On earth and in space he has conducted many experiments about the sensitivity of fluids to spacecraft vibrations. This work will lead to a better understanding of the effect of vibrations on the many experiments to be performed on the ISS.