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- Greece (54754 bytes)
1: ...ld|Western civilization]] and the birthplace of [[democracy]], Greece has a long and rich history duri...
2: ...ackground: #f9f9f9; border: 1px #aaaaaa solid; border-collapse: collapse; font-size: 95%;"
5: {| border=0 cellpadding=2 cellspacing=0 style="background:...
11: ...Σ<br>''([[Greek language|Greek]]: Freedom or Death)''
21: | '''[[List of Presidents of Greece|President]]''' || [[Karolos Papoulias|KᲯlos Papo?]] - Timeline of invention (28171 bytes)
3: ...s ambiguity, the date of the first practical, fielded version of the invention is used here.
60: * [[Odometer]] : [[Ancient Rome|Rome]]: [[Archimedes]]?
66: ...ntury BC|200s BC]]: Compound [[pulley]]: [[Archimedes]]
70: * [[87 BC]]: [[Clockwork]] (the [[Antikythera mechanism]]): [[Posidonius]]?
74: * [[1st century]]: [[Rudder|Stern mounted rudder]] in [[History of China|China]] - Clock (10086 bytes)
2: ... is called a [[chronometer]]. The clock in its modern form (24 hour clock) has been in use since at l...
12: It may also be used to ''control'' a device according to time, e.g. an alarm clock, a [[V...
14: ...hronized processing. (A few research projects are developing CPUs based on [[asynchronous circuit]]s)....
16: ===Ideal uses===
18: ...be circular. An ideal clock is more appropriately defined in relationship to the set of all physical p... - Computer (32773 bytes)
3: ...mputer program|programming]]) a computer can be made to represent some aspect of a problem or part of ...
4: The discipline which studies the theory, design, and application of computers is called '''[...
8: ...s, photons, quantum particles or any other well-understood physical phenomenon. Although computers ha...
10: .... For example, electron flows might be used to model the flow of water in a dam. Such ''[[analog sig...
12: ...is first translated into mathematical terms by rendering all relevant information into the [[binary]] ... - Archimedes (13735 bytes)
1: ...etribution.) Some math historians consider Archimedes to be one of history's greatest mathematicians, ...
4: ...ented the [[irrigation]] device known as [[Archimedes' screw]].
6: ...inst the invading Romans was the [[claw of Archimedes]].
8: ...wooden ship with a variety of mirrors, they concluded that the enemy ships would have had to be virtua...
10: Archimedes was killed in Syracuse by a Roman soldier in 212... - Astrolabe (4446 bytes)
4: ...he sun; determining local time given local longitude, and vice-versa; and surveying and triangulation.
6: ... Lisbon, which improved on the accuracy of its wooden [[Arabian]] precursors.
8: ...and may be marked with a scale of [[declination | declinations]].
10: ...The astrolabe is therefore a predecessor of the modern [[planisphere]].
12: ...ighted along its length, so that the altitude (in degrees) of the star could be read ("taken") from th... - History of science in early cultures (11033 bytes)
3: ...on|civilizations]] to develop and more time to be devoted to tasks other than survival, such as the se...
7: ...esources from which to draw are http://www.worldwideschool.org/library/books/sci/history/AHistoryofSci...
9: ... [[Pythagorean theorem|Pythagoras' law]] was recorded, as early as the [[18th century BC]]: the Mesopo...
11: ...] by priests. Indeed, rather than following the modern trend towards [[rational]] science, moving away...
16: ...nd in third millennium cities of [[India]]. Their design can be conservatively dated to the [[1st mill... - Wheel (4678 bytes)
9: ...oves 10 m the sliding frictional surfaces only slide over each other a distance of 0.5 m. So work done...
11: ... an external force in the opposite direction in order to stop the object or change its direction, for ...
14: [[Image:Standard of Ur chariots.jpg|thumb|400px|depiction of [[onager]]-drawn carts on the [[Sumer]]...
15: ...ike worked [[stone]]s have been found on objects identified as [[children]]'s [[toys]] dating to about...
17: ... of [[agriculture]]. Early wheels were simple wooden disks with a hole for the axle.
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