BIO202H5 Lecture Notes - Lecture 7: Jet Propulsion, Parachuting, Airfoil
Document Summary
Lecture 7: finding the way around locomotion (1) types of locomotions. Terrestrial locomotion: 5 types walking, running, jumping, creeping, burrowing, land animals can use locomotion for combat (kangaroos) Aerial locomotion: *diagram: 3 types gliding, parachuting, powered flight, gliding descend lower than 45 degrees, parachuting descend higher than 45 degrees. Passive flying gliding is falling with grace, parachuting is not: powered flight aerofoils to produce lift (oppose gravity) and thrust (oppose drag) Being mobile is costly but offers advantages. Cost depends on size and type of locomotion some more costly than others (move through water, overcome inertia, etc. ) Flying can reach highest cost (depending on size) for smaller animals harder to maintain flight. Increase in mass must be supported by increase in cross sectional area. Proper scaling of elements that support body through different mediums needed limbs must change is support body mass (sa and diameter of supporting beam needs to adequately support volumetric increase in size)
