His tipping-bucket rain gauge emptied itself when filled with rain.
Hooke went on to develop his own versions of wind and rain gauges. This changed the measurement selected by the pointer, according to. When the air pressure increased, the increased weight pushing down on the mercury forced more mercury into the tube and caused the ball to move upward. The tube, filled with mercury, sat upside down on a small container of mercury. The floating ball was attached to a pointer. This barometer consisted of a curved tube, filled with mercury, and a ball that floated on top. The barometer invented by Hooke was the wheel barometer, which was used to measure the air's atmospheric pressure. How It Works is the action-packed magazine that's bursting with exciting information about the latest advances in science and technology, featuring everything you need to know about how the world around you - and the universe - works. This article is brought to you by How It Works. In 1663, he invented or improved the five main meteorological instruments: the barometer, thermometer, hydroscope, rain gauge and wind gauge, according to. Today, this is the oldest independent scientific organization, and Hooke's broad scientific interests helped set the society's trajectory during its early years.
In 1662, Hooke was given the role of Curator of Experiments for the Royal Society, which meant he devised the experiments performed in the society's weekly meetings, according to. Hooke's law states that the force needed to extend or compress a spring is proportional to the distance it is stretched. In 1660, Hooke discovered a physical law that would later be named after him. Newton denied any plagiarism, but it is widely believed that Newton was able to turn Hooke's accurate description into a mathematical model. Newton's new law had explained how "all celestial bodies have an attraction or gravitating power toward their own centers," but Hooke had written these words decades earlier, according to Science Focus magazine. Gregory was unable to make his telescope work, but 10 years later, Hooke achieved this task for him, according to the History of Science MuseumĪfter Sir Isaac Newton published some of his findings on the law of gravity, Hooke confronted him, demanding some credit. This was the second successful reflecting telescope designed by Scottish mathematician James Gregory. The light is reflected back in the opposite direction, towards the smaller mirror, which focuses the light through the eyepiece lens. Light enters the telescope and travels to the largest of these mirrors at the end of the barrel. Using this interest, Hooke became one of the first scientists to build a working Gregorian telescope, which consists of two concave mirrors inside a brass barrel.
Hooke was fascinated by how instruments could manipulate light to allow him to see both near and far. Later, in the 19th century, the sketches he made of Mars were used to calculate its rate of rotation, according to. During his observations of the night sky, he analyzed planets and was the first to theorize that Jupiter rotates on an axis. One of Hooke's greatest discoveries was that of the fifth star in the trapezium of the Orion constellation, in 1664. Hooke's contributions to physics and mechanics
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