284 BC - 221 BC
Ctesibius or Ktesibios or Tesibius (Greek: Κτησίβιος; fl. 285–222 BC) was a Greek inventor and mathematician in Alexandria, Ptolemaic Egypt. He wrote the first treatises on the science of compressed air and its uses in pumps (and even in a kind of cannon). Read more on Wikipedia
Since 2007, the English Wikipedia page of Ctesibius has received more than 249,938 page views. His biography is available in 37 different languages on Wikipedia. Ctesibius is the 80th most popular mathematician (up from 82nd in 2019), the 87th most popular biography from Egypt (down from 80th in 2019) and the 5th most popular Egyptian Mathematician.
Ctesibius is most famous for inventing the aeolipile, a device that is similar to a modern day steam engine.
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Among mathematicians, Ctesibius ranks 80 out of 823. Before him are Giuseppe Peano, Andrey Kolmogorov, Richard Dedekind, Augustus De Morgan, Regiomontanus, and Alexander Grothendieck. After him are Friedrich Bessel, Pappus of Alexandria, Johann Heinrich Lambert, Felix Klein, Bonaventura Cavalieri, and Paul Erdős.
1858 - 1932
HPI: 67.42
Rank: 74
1903 - 1987
HPI: 67.41
Rank: 75
1831 - 1916
HPI: 67.33
Rank: 76
1806 - 1871
HPI: 67.17
Rank: 77
1436 - 1476
HPI: 67.06
Rank: 78
1928 - 2014
HPI: 67.05
Rank: 79
284 BC - 221 BC
HPI: 67.01
Rank: 80
1784 - 1846
HPI: 67.00
Rank: 81
290 - 350
HPI: 66.98
Rank: 82
1728 - 1777
HPI: 66.89
Rank: 83
1849 - 1925
HPI: 66.68
Rank: 84
1598 - 1647
HPI: 66.56
Rank: 85
1913 - 1996
HPI: 66.35
Rank: 86
Among people born in 284 BC, Ctesibius ranks 2. Before him is Ptolemy III Euergetes. Among people deceased in 221 BC, Ctesibius ranks 2. Before him is Hasdrubal Barca. After him are Berenice II of Egypt, Hasdrubal the Fair, Conon of Samos, Antigonus III Doson, and Lucius Caecilius Metellus.
300 BC - 221 BC
HPI: 68.40
Rank: 1
284 BC - 221 BC
HPI: 67.01
Rank: 2
267 BC - 221 BC
HPI: 62.84
Rank: 3
270 BC - 221 BC
HPI: 62.73
Rank: 4
280 BC - 221 BC
HPI: 60.51
Rank: 5
263 BC - 221 BC
HPI: 60.27
Rank: 6
290 BC - 221 BC
HPI: 49.84
Rank: 7
Among people born in Egypt, Ctesibius ranks 87 out of 582. Before him are Saint Menas (285), Mohamed Morsi (1951), Ayman al-Zawahiri (1951), Saint Sarah (100), Athenaeus (200), and Djedefre (-2600). After him are Pappus of Alexandria (290), Abdel Fattah el-Sisi (1954), Fuad I of Egypt (1868), Ptolemy VIII Physcon (-182), Al-Hakim bi-Amr Allah (985), and Mohamed Naguib (1901).
285 - 309
HPI: 67.35
Rank: 81
1951 - 2019
HPI: 67.35
Rank: 82
1951 - 2022
HPI: 67.34
Rank: 83
100 - 100
HPI: 67.28
Rank: 84
200 - 223
HPI: 67.12
Rank: 85
2600 BC - 2570 BC
HPI: 67.02
Rank: 86
284 BC - 221 BC
HPI: 67.01
Rank: 87
290 - 350
HPI: 66.98
Rank: 88
1954 - Present
HPI: 66.93
Rank: 89
1868 - 1936
HPI: 66.89
Rank: 90
182 BC - 116 BC
HPI: 66.76
Rank: 91
985 - 1021
HPI: 66.76
Rank: 92
1901 - 1984
HPI: 66.71
Rank: 93
Among mathematicians born in Egypt, Ctesibius ranks 5. Before him are Euclid (-350), Hypatia (350), Diophantus (201), and Hero of Alexandria (10). After him are Pappus of Alexandria (290), Theon of Alexandria (335), Menelaus of Alexandria (70), Ibn Yunus (950), and Abū Kāmil Shujāʿ ibn Aslam (850).
350 BC - 240 BC
HPI: 83.48
Rank: 1
350 - 415
HPI: 81.91
Rank: 2
201 - 300
HPI: 75.97
Rank: 3
10 - 75
HPI: 75.56
Rank: 4
284 BC - 221 BC
HPI: 67.01
Rank: 5
290 - 350
HPI: 66.98
Rank: 6
335 - 405
HPI: 63.80
Rank: 7
70 - 140
HPI: 62.42
Rank: 8
950 - 1009
HPI: 59.74
Rank: 9
850 - 930
HPI: 55.21
Rank: 10