BIO202H5 Lecture Notes - Lecture 29: Viscosity, Sarcolemma, Myofibril
Document Summary
Rigid arrangement of the tiny filaments in the feathers and the asymmetry of feathers is important in flight. Lo(cid:449) rey(cid:374)old"s (cid:374)u(cid:373)(cid:271)ers: (cid:448)is(cid:272)osity forces dominate movement. High rey(cid:374)old"s (cid:374)u(cid:373)(cid:271)ers: i(cid:374)ertia forces dominate movement: takes more energy to start (cid:373)o(cid:448)i(cid:374)g, (cid:271)ut o(cid:374)(cid:272)e (cid:373)o(cid:448)e(cid:373)e(cid:374)t starts, it"s (cid:373)ore effi(cid:272)ie(cid:374)t. Teardrop shapes experience the least amount of drag (friction and pressure combined) Faster flow above the wing and lower flow below the wing creates lift. In spheres, the drag is much higher so more work would be required to generate lift. There is an optimum angle that flow of fluid can hit the wing to either h decrease lift elp increase or. If you have a tall tail, it creates a lot of drag (you would work much harder to move at higher velocities) A tall tail would be a disadvantage when it comes to swimming fast (however, it might be more beneficial for controlling movement)
