Everything you want to know about the U.S. presidents
by Borgna Brunner Which U.S. state claims the most presidents? How many of our vice presidents became president? Which chief executive had…
Born: 1864
Birthplace: near Diamond Grove, Mo.
Cosmetic and process of producing same; paint and stain and process of producing the same—When Carver's method of crop rotation…
inventorBorn: 28 November 1928Best Known as: inventor of the computerized telephone switching Erna Hoover invented the first computerized telephone switching system…
(Encyclopedia) photocopying, process whereby written or printed matter is directly copied by photographic techniques. Generally, photocopying is practical when just a few copies of an original are…
Energy is the power that we use for transportation, for heat and light in our homes and other places, and for the manufacture of all kinds of products. It has many other uses, too. The development…
(Encyclopedia) Ewell, Richard Stoddert, 1817–72, Confederate general, b. Georgetown, D.C., grad. West Point, 1840. Ewell rose rapidly in the Confederate army, becoming a major general by Oct., 1861.…
inventor of vulcanized rubberBorn: 12/29/1800Birthplace: New Haven, Conn. Early failures in business led him to carry on his experiments into finding a way to prevent rubber from melting when hot…
Born: 1892Birthplace: Domont, France Liquid fuels—Up until World War I enough gasoline was produced from crude oil by distillation. Cracking fuel oil, another product of distillation, was necessary…
(Encyclopedia) Kakutani, Shizuo, 1911–2004, Japanese mathematician, b. Osaka, Japan, grad. Tohoko Univ, Ph.D. Princeton, 1941. Kakutani repatriated to Japan during World War II, but returned to…
(Encyclopedia) tanning, process by which skins and hides are converted into leather. Vegetable tanning, a method requiring more than a month even with modern machinery and tanning liquors, employs…
