Cell theory timeline robert hooke biography
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Robert Hooke
(1635-1703)
Who Was Robert Hooke?
Scientist Robert Hooke was educated at Oxford and spent his career at the Royal samhälle and Gresham College. His research and experiments ranged from astronomy to biology to physics; he fryst vatten particularly recognized for the observations he made while using a microscope and for "Hooke's Law" of elasticity. Hooke died in London in 1703.
Early Life and Education
Robert Hooke was born in the town of Freshwater, on England’s Isle of Wight, on July 18, 1635. His parents were John Hooke, who served as curate for the local church parish, and Cecily (née Gyles) Hooke.
Initially a sickly child, Hooke grew to be a quick learner who was interested in painting and adept at making mechanical toys and models. After his father’s death in 1648, the 13-year-old Hooke was sent to London to apprentice with painter Peter Lely. This connection turned out to be a short one, and he went instead to study at London’s Westminster School.
In 1653
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No portrait survives of Robert Hooke. His name is somewhatobscure today, due in part to the enmity of his famous, influential,and extremely vindictive colleague, Sir Isaac Newton. Yet Hookewas perhaps the single greatest experimental scientist of theseventeenth century. His interests knew no bounds, ranging fromphysics and astronomy, to chemistry, biology, and geology, toarchitecture and naval technology; he collaborated or correspondedwith scientists as diverse as Christian Huygens,Antonyvan Leeuwenhoek, Christopher Wren, Robert Boyle, and Isaac Newton.Among other accomplishments, he invented the universal joint, the iris diaphragm,and an early prototype of the respirator; invented the anchor escapementand the balance spring, which made more accurate clocks possible; servedas Chief Surveyor and helped rebuild London after the Great Fire of 1666;worked out the correct theory of combustion; devised an equation describingelasticity that is still used today ("Hooke's Law"); assisted Ro
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Cell Theory
In 1665, Robert Hooke published Micrographia, a book filled with drawings and descriptions of the organisms he viewed under the recently invented microscope. The invention of the microscope led to the discovery of the cell by Hooke. While looking at cork, Hooke observed box-shaped structures, which he called “cells” as they reminded him of the cells, or rooms, in monasteries. This discovery led to the development of the classical cell theory.
The classical cell theory was proposed by Theodor Schwann in 1839. There are three parts to this theory. The first part states that all organisms are made of cells. The second part states that cells are the basic units of life. These parts were based on a conclusion made by Schwann and Matthias Schleiden in 1838, after comparing their observations of plant and animal cells. The third part, which asserts that cells come from preexisting cells that have multiplied, was described by Rudolf Virchow in 1858, when he stated omnis cel