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Robert Hooke (1635-1703) He publishes his first book.
Robert Hooke publishes his first book called "Micrographia". In this one book, he presented his ideas about the life cycles of mosquitoes, the origin of craters on the moon, and fossiles. -
Anton van Leeuwenhoek (1632-1723)
In 1673, Leenuwenhoek described what he say in a drop of ater "...wretched beasties. they stop, they stand still...and then turn themselfs round.. they [are] no biggerthan a fine grain of sand." By examining scrapings from his teeth, he found attitional evidence of these "many very little living animalcules, very prettily a-moving." -
Matthias Jakob Schleiden (1804-1881)
Schleiden suggested that all olants are made of cells. this was a completely new idea: Just as a house would be made up entirely of bricks, plants were made up of cells. -
Theodor Schwann (1804-1885)
One year after Schleiden proposed his theory, Schwann suggested that animals, and not just plants, were made up of cells. -
Ignaz Philipp Semmelweiss (1818-1865)
It was in the 1840s and pregnant women often died of a disease called childebed fever. Dr. Semmelweiss just completed an autopsy. Semmelweiss concluded that childbed fever must be infectious and could be spread from something found in dead bodies. -
Karl Theodor Ernst von Siebold(1804-1885)
In a845, Karl Theodor Ernst von Siebold suggested that microbes were also made up of cells--or more specificlly, one cell. In fact, Siebold believed that organisims made up of cells, like animals, were built out of single-celled microbes! -
Ruldof Carl Virchow (1821-1902)
Rudolf Carl Virchow is famous for saying, in the 1850's, "all cells arise from cells," meaning that cells reproduce to create new cells. -
Florence Nightingale (1820-1910)
An English nurse, published her ideas on disease in 1860. At the time, the idea that cleanliness was improtant in preventing disease was not a commmon one. She recommended it as a art of good nursing. -
Louis Pasteur (1822-1895)
Pasteur discovered that different microbes cause different kinds of spoiling, but heat can kill many of these microbes. Yoday because of his work, milk is heated to 71 degrease for 15 seconds to kill the microbe. -
Joseph Lister (1827-1912)
When Lister , a Scottish surgen, heard about Pasteur's germ theory of disease, he came up with the idea of killing germs with chemicals. In 1867, he began using an antiseptic to clean surgical instruments. -
Robert Koch (1843-1910)
In 1876 a German doctor, identified the microbe that caused anthrax an infectious disease that was killing cattle. He later went on to identify the microbes that caused tuberculosis and cholera. -
William Stewart Halsted (1852-1922)
In 1890, Halsted became one of the first surgeons to use rubber gloves during surgery. The gloves could be sterilized with heat and chemicals that were too hard on human hands. This helped reduse the presrnce of even more microbes and improve patient health. -
Days gone by.
By 1931, the germ theory of disease had become so accepted that ads for a disposable tissue read: "A new era in handkerchief hygiene! Use once and discard----avoiding self-infection from germ-filled handkerchiefs."
