MORTALITY n.
alive at one age, it can be computed what number are likely to survive a given number of years. -- Table of mortality, a table exhibiting the average relative number of persons who survive, or who have died, at the end of each year of life, out of a given number supposed to have been born at the same time.…
NEPTUNE n.
e from the sun is about 2,775,000,000 miles, and its period of revolution is about 164,78 years. Neptune powder, an explosive containing nitroglycerin, -- used in blasting. -- Neptune's cup (Zoöl.), a very large, cup-shaped, marine sponge (Thalassema Neptuni).
NOBEL PRIZES n.
edish inventor of dynamite, who left his entire estate for this purpose. They are awarded yearly for what is regarded as the most important work during the year in physics, chemistry, medicine or physiology, idealistic literature, and service in the interest of peace. The prizes, averaging $40,000 each, were first awar…
NORTH a.
ittle Bear, is our present north star, being distant from the pole about 1º 25', and from year to year approaching slowly nearer to it. It is called also Cynosura, polestar, and by astronomers, Polaris.