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Ctesibius or Ktesibios or Tesibius (Greek language Κτησίβιος) (flourished 285 BC–222 BC) was a Ancient GreeceEncyclopaedia Britannica "Greek physicist and inventor, the first great figure of the ancient engineering tradition of Alexandria, Egypt." or Ancient EgyptGeorge Sarton (1959). A History of Science: Hellenistic Science and Culture in the Last Three Centuries, p.343-344. Harvard University Press. inventor and mathematician in Alexandria, Ptolemaic Egypt. His contributions to mathematics and science were second only to Archimedes in the Hellenistic civilization. He wrote the first treatises on the science of compressed air and its uses in pumps (and even a cannon). This, in combination with his work on the theory of elasticity of air On pneumatics, earned him the title of "father of pneumatics." None of his written work has survived, including his Memorabilia, a compilation of his research that was cited by Athenaeus.

Ctesibius was probably the first head of the Musaeum. Very little is known of his life and work. It is said (possibly by Diogenes Laertius) that his first career was as a barber. During his time as a barber, he invented a clever counterweight-adjustable mirror. His other inventions include the hydraulis, a water organ that is considered the precursor of the modern pipe organ, and an improved water clock called a clepsydra. The clepsydra kept more accurate time than any clock invented until the Dutch physicist Christiaan Huygens detailed the use of a pendulum to regulate a clock in the 17th century. The principle of the siphon has also been attributed to him.

According to Diogenes Laertius, Ctesibius was miserably poor. Laertius details this by recounting the following concerning the philosopher Arcesilaus: :"when he had gone to visit Ctesibius who was ill, seeing him in great distress from want, he secretly slipped his purse under his pillow; and when Ctesibius found it, 'This,' said he, 'is the amusement of Arcesilaus.'"

Ctesibius's work is chronicled by Vitruvius, Athenaeus, and Philo of Byzantium who repeatedly mentions him, adding that the first mechanicians such as Ctesibius had the advantage of being under kings who loved fame and supported the arts. Proclus (the commentator on Euclid) and Hero of Alexandria (the last of the engineers of antiquity) also mention him.

References External links

• Ancient Greek Scientists: Ctesibius

Ctesibius or Ktesibios or Tesibius (Greek language Κτησίβιος) (flourished 285 BC–222 BC) was a Ancient GreeceEncyclopaedia Britannica "Greek physicist and inventor, the first great figure of the ancient engineering tradition of Alexandria, Egypt." or Ancient EgyptGeorge Sarton (1959). A History of Science: Hellenistic Science and Culture in the Last Three Centuries, p.343-344. Harvard University Press. inventor and mathematician in Alexandria, Ptolemaic Egypt. His contributions to mathematics and science were second only to Archimedes in the Hellenistic civilization. He wrote the first treatises on the science of compressed air and its uses in pumps (and even a cannon). This, in combination with his work on the theory of elasticity of air On pneumatics, earned him the title of "father of pneumatics." None of his written work has survived, including his Memorabilia, a compilation of his research that was cited by Athenaeus.

Ctesibius was probably the first head of the Musaeum. Very little is known of his life and work. It is said (possibly by Diogenes Laertius) that his first career was as a barber. During his time as a barber, he invented a clever counterweight-adjustable mirror. His other inventions include the hydraulis, a water organ that is considered the precursor of the modern pipe organ, and an improved water clock called a clepsydra. The clepsydra kept more accurate time than any clock invented until the Dutch physicist Christiaan Huygens detailed the use of a pendulum to regulate a clock in the 17th century. The principle of the siphon has also been attributed to him.

According to Diogenes Laertius, Ctesibius was miserably poor. Laertius details this by recounting the following concerning the philosopher Arcesilaus: :"when he had gone to visit Ctesibius who was ill, seeing him in great distress from want, he secretly slipped his purse under his pillow; and when Ctesibius found it, 'This,' said he, 'is the amusement of Arcesilaus.'"

Ctesibius's work is chronicled by Vitruvius, Athenaeus, and Philo of Byzantium who repeatedly mentions him, adding that the first mechanicians such as Ctesibius had the advantage of being under kings who loved fame and supported the arts. Proclus (the commentator on Euclid) and Hero of Alexandria (the last of the engineers of antiquity) also mention him.

References External links

• Ancient Greek Scientists: Ctesibius

Ctesibius - Wikipedia, the free encyclopedia
Ctesibius or Ktesibios or Tesibius (Greek Κτησίβιος) (fl. 285–222 BC) was a Greek [1] or Egyptian [2] inventor and mathematician in Alexandria, Ptolemaic Egypt.

Ctesibius of Alexandria definition of Ctesibius of Alexandria in the ...
Ctesibius of Alexandria or Ktesibios of Alexandria (flourished c. 270 BC) Greek physicist and inventor. He was the first great figure of the ancient engineering tradition of ...

Ctesibius definition of Ctesibius in the Free Online Encyclopedia.
Ctesibius (tĭsĭb`ēəs), fl. 2d cent. B.C., Alexandrian Greek inventor. ... ctenophore Ctesias Ctesibius Ctesibius of Alexandria Ctesiphon CTFT CTI CTIA Ctl

TMTh:: CTESIBIUS OF ALEXANDRIA
Life Even though his work has not been fully studied, it is obvious that as an inventor and mathematician Ctesibius was second only to Archimedes in the world of ancient Greece.

Ctesibius of Alexandria -- Britannica Online Encyclopedia
Britannica online encyclopedia article on Ctesibius of Alexandria:Greek physicist and inventor, the first great figure of the ancient engineering tradition of Alexandria, Egypt.

Ctesibius or Ktesibios of Alexandria
Ctesibius Alexandrinus was the first who found out the properties of the wind, and of pneumatic power, the origin of which inventions is worthy of being known.

Alexander Bain
biography of Alexander Bain ... Achievements. Ctesibius is best known for three major inventions: the suction pump, the water clock, the hydraulis, a musical instrument (the ...

Ctesibius of Alexandria: Information and Much More from Answers.com
Ctesibius of Alexandria (flourished c. 270 BC ) Greek physicist and inventor. He was the first great figure of the ancient engineering tradition of

Ctesiphon - definition of Ctesiphon by the Free Online Dictionary ...
An ancient city of central Iraq on the Tigris River southeast of Baghdad. ... Ctesibius of Alexandria Ctesibius of Alexandria Ctesiphon Ctesiphon (orator)

Ctesias of Cnidus - Hutchinson encyclopedia article about Ctesias of ...
Ctesias (lived 4th century BC) ... Ctesibius of Alexandria Ctesibius of Alexandria Ctesiphon Ctesiphon Ctesiphon