Heron of alexandria family
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Two thousand ago, the Thomas Edison of the ancient world lived in Alexandria, Egypt where he tinkered, built and wrote about some of the most amazing and whimsical machines the pre-industrial world had ever seen. The Pneumatica, possibly derived from the works of Philo of Byzantium and Ctesibus, describes mechanical devices operated by , water, or steam. The values of a and B are so easy found to be 20 and 21. A prolific writer as well as inventor, Hero is credited with authorship of several manuscripts including Automata, the Pneumatica, the Dioptra, the Catoprica and the Mechanica. Or is it John, for writing the story without mentioning it was a joke? Heronis Alexandrini Opera quae supersunt omnia, 5 vols.

A large number of works by Heron have survived, although the authorship of some is disputed. The second was based on an argument which purported to show that he lived later that , and, since refers to Heron, before. In addition to making machines for the temples, Hero also designed and built a host of wonderful machines, from automatic doors operated by lighting a fire on the altar to slot machines, life-sized robots, mechanical singing birds, self-trimming wicks for lamps, an odometer or distance-measuring device , the mechanism for a siphoned flushing toilet, and a highly effective fire engine. Heiberg, Geschichte der Nathematik und Kantrwissenschaften un Altertum, in Iwan von MÃ¼ller, ed. Its three books contain formulas for calculating area and volume that Heron gathered from a variety of sources. References to Hero in Pappus of Alexandria and to Archimedes in Hero leave a span of approximately five hundred years as the one in which Hero must have lived.

A rich and updated bibliography may be found here. Other works by Heron dealing with the problems of mechanics and engineering are the Barulcus On Raising Heavy Weights , Belopoeica Making Darts , On Automaton-making, Catoptrica On Mirrors , and On the Dioptia. The ancestry of Hero is unknown. However, it is unlikely that Hero procured a new text of the Elements. He was also an accomplished mathematician and theoretician.

The Automata, or Automatic Theater, describes two sorts of puppet shows, one moving and the other stationary; both of them perform without being touched by human hands. Beyond gadgetry, the practical application of Heron's ideas in antiquity was minimal, although they did influence Arabic and Renaissance construction of fountains, clocks, and automated objects. The aeolipile is the first known device to transform steam into rotary motion. They were written in Greek; but one of them, the Mechanics, is found only in an Arabic translation and another, the Optics, only in Latin. Origen of Alexandria is considered to be boththe greatest mind in the pre-Constantinian church and the most controversial. Some are clearly textbooks while others are perhaps drafts of lecture notes not yet worked into final form for a student textbook.

Most of all his writings are lost due to the Church condemning him as a heretic,. In chapter 33 Hero criticizes the groma, the instrument then used for staking out lines at right angles; chapter 34 describes an odometer actuated by the wheel of a car, used for measuring distances by driving slowly along a level road. Hero wrote many books, with Pneumatics being the longest and perhaps the most read. Here we have a remarkable individual, a man whose contraptions could utterly amaze and dazzle the public. One of Heron's outstanding treatises was the Metrica, a geometrical study, in three volumes, on the measurement of simple plane and solid figures from polygons to hendecagons.

He came from Alexandria in Egypt, but Carl Boyer, a historian of science and mathematics, has said that his work and mathematics demonstrate that Hero must also have had Parthian and Greek influences. . The Greeks and Egyptians feared the Jewish community ascending to political power when the Romans gained power in Egypt. Unlike his steam engine this invention did not require any great technical prowess or mechanical plays, but it did apparently require his unique insight. After the performance the theater withdraws.

The fragments from Archimedes have been published in English with the manuscript figures. The most accurate estimate appears to be around a. He asserted that if simultaneous observations of a lunar eclipse cannot be found in the almanacs, then the reader can provide one, because they occur at intervals of five or six months. Hero's coin-operated holy water vending machines inspired the creation of many other vending machines lending to a financial gain. As a mathematician Hero came up with the first approximation in Greece of a number's square root. The Greek pottery created between these time periods all tell a story of their time. Hero of Alexandria First century a.

Pappus uses this rule of Heron to discourse the jobs of the power force required to travel a weight up an inclined plane. Within such a time span there is a probability of about three over four that at least one lunar eclipse actually fits the date, and even more if some margin for error is allowed. Religious people aren't big partygoers, so they can't be expected to know a lot of party tricks, you know? This text cannot have been written later than a. The analysis is followed by a calculation. The Wedding at Cana, by Carl Heinrich Bloch. Some have considered Heron to be an ignorant artisan who copied the contents of his books without understanding what he wrote.

His works on mathematical and physical subjects are. The driving power in both cases was a heavy lead weight resting on a heap of millet grains which escaped through a hole. The engineer, mathematician, and inventor Heron of Alexandria active ca. In developing the mathematical studies, Heron solved complex quadratic equations arithmetically, approximated the square roots of nonsquare numbers, and calculated cube roots. Euclid was a great Greek mathematician.

The book is a text for students, and Hero describes instruments the student needs to know, just as a modern physics textbook explains the laws governing the spinning top or the climbing monkey. Two other lunar eclipses fit the temporal data as well as the one of 62, and the date actually better than that. There was a third date proposed which was based on the belief that Heron was a contemporary of Columella. He was an accomplished inventor and mechamnical engineer. But there is more to be learned from the Pneumatics.