Search results
Jun 17, 2024 · Trigonometry, the branch of mathematics concerned with specific functions of angles. There are six functions commonly used in trigonometry: sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (csc). Learn more about trigonometry in this article.
Jun 13, 2024 · ostracism, political practice in ancient Athens whereby a prominent citizen who threatened the stability of the state could be banished without bringing any charge against him. (A similar device existed at various times in Argos, Miletus, Syracuse, and Megara.)
- The Editors of Encyclopaedia Britannica
3 days ago · Antikythera mechanism, ancient Greek mechanical device made of bronze and used to calculate and display information about astronomical phenomena. The Antikythera mechanism had the first known set of scientific dials or scales and was the most complex mechanism until medieval clocks 1,000 years later.
- Michael Edmunds
6 days ago · Archimedes calculates the side of the 12-gon from that of the hexagon and for each subsequent doubling of the sides of the regular polygon. Archimedes was able to use indivisibles (a precursor to infinitesimals) in a way that is similar to modern integral calculus.
1 day ago · In Greek mythology, Orpheus ( / ˈɔːrfiːəs, ˈɔːrfjuːs /; Ancient Greek: Ὀρφεύς, classical pronunciation: [or.pʰeú̯s]) was a Thracian bard, legendary musician and prophet.
17 hours ago · Greek astronomer Hipparchus of Nicaea (c.190 – c. 120 BCE) also rejected Aristotelian physics and followed Strato in adopting some form of theory of impetus to explain motion. [24] [25] The poem De rerum natura by Lucretius (c. 99 – c. 55 BCE) asserts that more massive bodies fall faster in a medium because the latter resists less, but in a ...
Jun 29, 2024 · Hipparchus is generally known as the greatest astronomer of antiquity. He developed the first models depicting the movement of the sun and the moon, and may have been the first to predict solar eclipses.
