Hero of Alexandria (/ˈhɪəroʊ/; Greek: Ἥρων ὁ Ἀλεξανδρεύς, Hērōn hò Alexandreús, also known as Heron of Alexandria /ˈhɛrən/; fl. 60 AD) was a Greek mathematician...

exiting the turbine. The Greek-Egyptian mathematician and engineer Hero of Alexandria described the device in the 1st century AD, and many sources give...

Library of Alexandria in Alexandria, Egypt, was one of the largest and most significant libraries of the ancient world. The library was part of a larger...

numbers.[citation needed] The ancient Greek mathematician and engineer Hero of Alexandria defined a gnomon as that which, when added or subtracted to an entity...

Hero of Alexandria (10–70 AD) provides a recipe for building a "Fountain which trickles by the Action of the Sun's Rays," a more elaborate version of...

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)...

mathematician Hero of Alexandria compiled recipes for dozens of contraptions in his work, Pneumatics. It has been speculated that much of this work can...

physicist Hero of Alexandria. Heron studied the pressure of air and steam, described the first steam engine, and built toys that would spurt water, one of them...

and 1960s Heron or Hero of Alexandria (c. 10 – 70), ancient Greek mathematician and engineer, creator of Heron's formula (area of triangle) and Heron's...

clock'". This tradition continued in Alexandria with inventors such as the Greek mathematician Hero of Alexandria (sometimes known as Heron), whose writings...

of the crater. This crater is also called Hero in some references. It was named after 1st century BC Egyptian inventor Heron (or Hero) of Alexandria....

Hero of Alexandria and mostly composed of metal (the spring mechanism and the skeins), it shot bolts that were smaller than those in other forms of ballistae...

the early 2nd millennium BC. In Roman Egypt, Hero of Alexandria (c. 10–70 AD) identified the pulley as one of six simple machines used to lift weights. Pulleys...

plane) and were able to roughly calculate their mechanical advantage. Hero of Alexandria (c. 10–75 AD) in his work Mechanics lists five mechanisms that can...

hero in Wiktionary, the free dictionary. A hero is somebody who performs great and noble deeds of bravery. Hero may also refer to: Hero of Alexandria...

to the rope. Hero of Alexandria described cranes formed from assemblies of pulleys in the first century. Illustrated versions of Hero's Mechanica (a book...

Diophantus of Alexandria (born c. AD 200 – c. 214; died c. AD 284 – c. 298) was a Greek mathematician, who was the author of two main works: On Polygonal...

as "of Alexandria". Ammonius of Alexandria (3rd century AD), a Greek philosopher from Alexandria and one of the founders of Neoplatonism. Appian of Alexandria...

"hero". Notable people with the name include: Hero of Alexandria (fl. 60 AD), Greek mathematician and engineer who was active in his native city of Alexandria...

the Greek scientist and engineer Hero of Alexandria in his book Pneumatics. Hero described and provided drawings of "A bird made to whistle by flowing...

senses nor could its supposition lend additional explanatory power. Hero of Alexandria challenged the theory in the first century AD, but his attempts to...

Unity and Diversity of the Mediterranean World", Osiris 2, p. 406-463 [429] John H. Lienhard (1995). "Hero of Alexandria". The Engines of Our Ingenuity. Episode...

citizen of Alexandria, developed the first fire pump in the third century BC, which was later improved upon in a design by Hero of Alexandria in the first...

opposing side of the surface normal in the plane formed by the incident and reflected rays. This behavior was first described by Hero of Alexandria (AD c. 10–70)...

lengths from a distance using this instrument is known, the Dioptra of Hero of Alexandria (c. 10–70 AD), which survived in Arabic translation; but the knowledge...

philosophers, Ptolemy's views were shared by other mathematicians such as Hero of Alexandria. There are several characters or items named after Ptolemy, including:...

degree of reaction and impulse from the blade root to its periphery. Hero of Alexandria demonstrated the turbine principle in an aeolipile in the first century...

{s(s-a)(s-b)(s-c)}}.} It is named after first-century engineer Heron of Alexandria (or Hero) who proved it in his work Metrica, though it was probably known...

Timeline of motor and engine technology (c. 30–70 AD) – Hero of Alexandria describes the first documented steam-powered device, the aeolipile. 13th century...

H={\frac {1}{3}}\left(A+{\sqrt {AB}}+B\right).} It is named after Hero of Alexandria. Just like all means, the Heronian mean is symmetric (it does not...