As you wrote above, a dozen represents 12 items. You do not have enough items to make a dozen, so you decide to make a new counting unit with a number smaller than 12, called an OWL. As a class, what number would you like our OWL to represent?

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.