By Andrew Carnegie. The problem of our age is the proper administration of wealth, so that the ties of brotherhood may still bind together the rich and poor in harmonious relationship. The conditions of human life have not only been changed, but revolutionized, within the past few hundred years.
Aeronautics is the study of the science of flight. Aeronautics is the method of designing an airplane or other flying machine. There are four basic areas that aeronautical engineers must understand in order to be able to design planes.
1) Salt will dissolve into the water, while the sawdust will float on top of the water and sand will precipitate in the container. 2) Using filter paper we can separate out the sawdust from the upper surface of the water and the precipitated sand.