GREAT SCIENTISTS OF WORLD - ROBERT HOOKE

 Robert Hooke was a famous scientist, born in 1635. He most famously discovered the Law of Elasticity (or Hooke's Law) and did a huge amount of work on microbiology (he published a

famous book called Micrographia, which included sketches of various natural things under a microscope).

 Robert Hooke, (born July 18 [July 28, New Style], 1635, Freshwater, Isle of Wight, England—died March 3, 1703, London), English physicist who discovered the law of elasticity, known as Hooke's law, and who did research in a remarkable variety of fields.

 He contributed to the discovery of cells while looking at a thin slice of cork. He then thought that cells only exist in plants and fungi. In 1665, he published Micrographia.Jan 25, 2017.

 Hooke used his microscope to observe the smallest, previously hidden details of the natural world. His book Micrographia revealed and described his discoveries. ... Hooke looked at the bark of a cork tree and observed its microscopic structure. In doing so, he discovered and named the cell – the building block of life.

While observing cork through his microscope, Hooke saw tiny boxlike cavities, which he illustrated and described as cells. He had discovered plant cells! Hooke's discovery led to the understanding of cells as the smallest units of life—the foundation of cell theory.

 Hooke's drawings show the detailed shape and structure of a thinly sliced piece of cork. When it came time to name these chambers he used the word 'cell' to describe them, because they reminded him of the bare wall rooms where monks lived. These rooms were called cells.

 The three tenets to the cell theory are  All living organisms are composed of one or more cells. The cell is the basic unit of structure and organization in organisms. Cells arise from pre-existing cells.

 

 Hooke discovered his law of elasticity, which states that the stretching of a solid body (e.g., metal, wood) is proportional to the force applied to it.

  His important law of elasticity, known as Hooke's law (1660), states that the stretching of a solid is proportional to the force applied to it. He published his law in 1678.

 Hooke's law states that the strain of the material is proportional to the applied stress within the elastic limit of that material. When the elastic materials are stretched, the atoms and molecules deform until stress is been applied and when the stress is removed they return to their initial state.

Hooke’s law states that the applied force F equals a constant k times the displacement or change in length x, or F = kx. The value of k depends not only on the kind of elastic material under consideration but also on its dimensions and shape.

Hookes law is important because it helps us understand how a stretchy object will behave when it is stretched or compacted.  The main component of car shocks are springs, and understanding how the spring will behave (using hookes law) is ideal for enhancing the technology.

Robert Hooke spent his life largely on the Isle of Wight, at Oxford, and in London. He never married.

 

In his last year of life, Hooke suffered from symptoms that may have been caused by diabetes. He died at the age of 67 in London on March 3, 1703.

ROBERT    HOOKE