Robert Hooke was a 17th century scientist and contributed to our knowledge. Math, Mechanics, biology, astronomy.. Hook is probably best known for discovering living cells, but is also well known for discovering the laws governing the elongation of elastic materials, improving meteorological instruments, and discovering new objects.
Hook was born in 1635 on the Isle of Wight, an island off the south coast of England. As a child, he suffered from a severe case of smallpox and was ill and unable to attend school. Oxford Academic.. Instead, he spent much of his childhood paintings in his bedroom. Historical UK.. But even at a young age, Hook showed powerful mechanical capabilities, making clocks out of wood and making toy boats that fired cannons. RobertHooke.org.uk..
As a teenager, Hook enrolled in Westminster School in London after his father died. There he discovered that his talent went beyond painting.He was excellent MathAccording to, Mechanics and Language, Biography.com..
In 1653, at the age of 18, Hook began studying at Christ Church College, Oxford University, where he spent a lot of time making telescopes.
Hook’s Contribution to Physics and Mechanics
One of Hook’s greatest discoveries was the discovery of the fifth star in the trapezium of Orion in 1664. While observing the night sky, he analyzed the planet and first theorized that Jupiter would rotate around its axis. Then, in the 19th century, he calculated the rotational speed of Mars using a sketch he made on Mars. Britannica.com..
Hook was fascinated by the way the instrument manipulated the light to see both near and far. Taking advantage of this interest, Hook became one of the first scientists to build a practical Gregorian telescope consisting of two curved mirrors in a brass barrel. Light enters the telescope and travels to the largest of these mirrors at the end of the barrel. Light is reflected in the opposite direction and is reflected towards a small mirror. The mirror focuses the light through the eyepiece. This was the second most successful reflecting telescope designed by Scottish mathematician James Gregory. Gregory was unable to get the telescope to work, but ten years later, Hook accomplished this task for him. Oxford History of Science Museum
After sir Isaac Newton Published some of his findings on the Law of gravity, Hook confronted him and demanded some credit. Newton’s new law explained that “every celestial body has attraction or gravity towards its center,” but Hook wrote these words decades ago. Science Focus Magazine.. Although Newton denied plagiarism, it is widely believed that Newton was able to turn the exact description of Hook into a mathematical model.
In 1660, Hook discovered the laws of physics later named after him. According to Hooke’s law, the force required to stretch or compress a spring is proportional to the distance the spring is stretched.
In 1662, Hook was given the role of experimental curator. Royal SocietyAccording to, he meant devising an experiment to be carried out at weekly meetings of society. RobertHooke.org.uk.. Today, this is the oldest independent scientific organization, and Hook’s broad scientific interests have helped set the trajectory of early society.
In 1663 he invented or improved five major meteorological instruments. ThoughtCo.com..
How to use
The barometer invented by Hook was a wheel barometer used to measure atmospheric pressure in air. The barometer consisted of a curved tube filled with mercury and a ball floating on it. A floating ball was attached to the pointer. The mercury-filled tube sat upside down on a small container of mercury. As the air pressure increased, the increased weight pushing down the mercury pushed more mercury into the tube, causing the ball to move upwards. This changed the measurement selected by the pointer. ThoughtCo.com..
Hook continued to develop his own version of the wind and rain meter. His fall bucket rain gauge emptied when filled with rain. The number of times the bucket was out of balance and fell was recorded, and the cumulative amount of rainwater for a certain period of time was measured. Hook’s anemometer is a reinvention of the original. As the wind speed changed, so did the position of the attached mobile panel. To improve the thermometer, Hook added additional measurements, including the freezing point of water. Royal Society Publishing..
Microscope and cell theory
Hook’s most famous work was the discovery of living cells in 1665.Although the scientist had Invented the microscope Decades ago, Hook’s innovation dramatically improved technology. He placed three mirrors in sequence to magnify the image and added lights to make it easier to see. The complex internal structure of the organism manifested itself in incredible detail under his more powerful composite microscope. National Geographic..
Hook elaborated on many of his observations in his 1665 book “Microscope”, filled with intricate sketches of the small world he saw. Tulips that sway in the wind, from the six “snowflakes” floating on frozen urine to mold spores.
Hook was also the first person to examine different fossil types under a microscope, suggesting in a “microscopic view”: Fossil shape “When a particular shellfish shell is thrown into place and filled with some form of mud or clay, or petrified, either by a flood, flood, earthquake, or other means. Water, or other substance. “
His microscopic observation also revealed how mosquito Lice suck blood.
In 1666, after the Great Fire of London destroyed much of the city, Hook was given the opportunity to challenge architecture. Royal Museums of Fine Arts Greenwich.. Hook and Sir Christopher Wren, who was also a scientist, designed a monument to commemorate the fire. Two scientists and architects have decided to add a scientific element to the 202-foot (61-meter) high monument built between 1671 and 1677. The central corridor was built to accommodate a large telescope. BBC.. The laboratory is still under the monument today, but it is usually inaccessible to the general public and the entrance remains covered.
Hook has never been married. He died in 1703 after years of poor health.
Scientists continue to benefit from Hook’s discovery, inspired by Hook’s discovery, as he delves deeper into the microscopic world that Hook reveals. As Hook wrote in the “microscopic view”, “By the telescope, there is nothing far away so far, but it may be expressed in our view, and with the help of the microscope, our investigation. Nothing is small enough to escape from. ”
This article is from Future Ltd. It is based on an earlier version published in How It Works, a publication of.Subscribe to learn more about the wonders of nature How to use magazine.
Who was Robert Hooke? | Live science
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