Rabies was discovered as a human disease by Girolamo Fracastoro, a 16th century Italian physician. The disease has been recognized as an animal disease for thousands of years. The rabies vaccine was developed in 1885 by ... More »

The life cycle of the rabies virus is transmission, incubation, early symptoms (prodrome period) and encephalitis phase. Rabies is transmitted to a human or other animal through saliva from an infected animal, in which c... More »

The rabies virus is not airborne, according to the Humane Society. Rabies is spread through contact with the saliva of a dying animal infected with the virus, usually by way of a bite. More »

The first artificial refrigerator was invented by renowned Scottish physician William Cullen in 1755. After the cumbersome device produced a small amount of ice through delicate, manual labor, refrigeration technology wa... More »

Modern dry cleaning was invented by two men in the mid-19th century: a Frenchman, Jean Baptiste Jolly, and an American, Thomas Jennings. Though their discoveries occurred independently of each other, they both used vario... More »

The history of clocks includes timekeeping and sundials established thousands of years ago by ancient civilizations, water clocks in the second century B.C. and the tower clock in the 11th century A.D. Europeans built th... More »

Anaximander, a Greek philosopher who lived in Miletus in the 6th century, is credited with the invention of the first map. The earliest known maps are related to the sky, and date back to 16,500 B.C. More »