A threshold of 40 m s−1 was chosen because (1) this is much higher than the fastest recorded flight and dive speeds in similar hummingbirds33, and (2) it represented apparent departure from normality in a histogram of the distribution of all dives' maximal speeds.
According to Hosoi, "We can control the length, spacing, and arrangement of hairs, which allows us to design textures to match certain dive speeds and maximize the wetsuit's dry region". This isn't the first time, incidentally, Hosoi has turned to marine life for engineering inspiration: she is one of the creators of the RoboClam, a digging device modeled after its aquatic namesake.
The Pan Am Pool, built for the 1967 Pan Am Games, hosts aquatic events, including diving, speed swimming, synchronized swimming and water polo.
The beautiful bird of prey can be identified by its grey upper plumage and swift velocity; they are the fastest animals on Earth, with diving speeds of up to 200mph.
Tucker, VA, Cade, TJ, and Tucker, AE. "Diving speeds and angles of a gyrfalcon (Falco rusticolus)." J Exp Biol 201 (Pt 13) (July 1998): 2061-2070.
Higher diving speeds were obtained of up to 2000 m.
It was able to withstand diving speeds of and a maximum level speed of near ground level, and a flying weight of 4300 kg.
Hilary's second shot took an unlucky bounce and dived at speed into a small copse.
Attacking out of the sun was still favoured, both because it preserved the element of surprise and because diving added speed.
You should have measured the distance he dived, the speed with which he slipped from some ultimate competitive grace to the confusion of the profoundest defeat.
