Air flows in the channel in Fig. P11.50. Determine theMach number, static pressure, and stagnation pressures at station 3.Assume isentropic flow except for the normal shock wave.
Lecture 8: 9/7/16 ● Major trends between apes and humans: ● Increased brain size compared to other primates ● Reduction in the reduction to the projection of the face and reliance on smell ● Reliance on sight increased ● Reduction in number of teeth ● Increased infant dependence ● Increased dependence on learned behavior ● How do we tell how old something is ● Laws of Superposition (closer to the surface = younger) and Original Horizontality (sediments have a tendency to be deposited flat or horizontally) ● Paleomagnetism - (pole reversals) ● Biostratigraphy - (index fossils; species prominent in one small window of time, but across large areas) ● Potassium-Argon Dating - (Rate of decay between potassium and argon) ● How do we know what the environment was like ● Proxy records Ice cores, pollen cores, varves (mud) Geology Paleobotany Fossil Animal Remains ● Lumper vs. Splitter ● A lumper is a person who suppresses variation, and collapses similar specimens into a few categories (i.e. species) ● A splitter is a person who emphasizes variation between specimens, and creates many different categories to account for the variation ● Humanoid development ● Australopithecines ● Homo habilis ● Homo erectus ● Neanderthal ● Anatomically Modern Humans ● Aegyptopithecus ● Ancestral to Old World monkeys and apes ● Projecting face, eyes not
