The Antikythera calculating mechanism

The Antikythera calculating mechanismThe first computational machine in history. It was built around 120 B. C. and was used to predict astronomical and calendar events, as well as to determine important occurrences such as the Olympic Games. It included at least 35 gears, dials, and discs, and operated manually. It accurately modeled complex cycles such as those of Meton, Callippus, Saros, and the Olympiad. Dimensions: 17 34 8 cm

Such an abacus

a barking dog

) and they were trying to put them alternately in order to form a straight line or prevent the opponent from accomplishing this

nuts and acorns

and operated manually

Thus it was created at the section points of the lines nine positions for the pawns

and the Olympiad

or vice versa

"Σ'αγαπώ" meaning "I love you" written on this silver necklace version

A moving button was also added which slid at length of the thread and was regulated depending on the month which was indicated by the zodiac at the other edge of the instrument

as well as to determine important occurrences such as the Olympic Games

It consisted of graduated in degrees quadrant which had an aiming device at one edge and from its centre hung a plumb bob