Chiropractors use the physician title in some countries. In the United States, practitioners with a Doctor of Chiropractic (DC) have been added to the list of recognized physicians by the Joint Commis ...
In modern English, the term physician is used in two main ways, with relatively broad and narrow meanings respectively. This is the result of history and is often confusing. These meanings and variati ...
The first national archaeological museum in Greece was established by prime minister of Greece Ioannis Kapodistrias in Aigina in 1829. Subsequently the archaeological collection was relocated to a num ...
There are various devices for getting more usable traction from vehicles with differentials.The clutch-type limited slip differential (LSD), often better known as the Positraction brand is the least e ...
In automobiles and other wheeled vehicles, a differential couples the input shaft (or prop shaft) to the Pinion, which in turn runs on the Crown wheel of the diff. This also works as reduction gearing ...
Hominids settled in Crete at least 130,000 years ago. In the later Neolithic and Bronze Age period, under the Minoans, Crete had a highly developed, literate civilization. It has been ruled by various ...
The island is first referred to as Kaptara in texts from the Syrian city of Mari dating from the 18th century BC, repeated later in Neo-Assyrian records and the Bible (Caphtor). It was also known in a ...
Kythira and the nearby island of Antikythira were separate municipalities until they were merged at the 2011 local government reform; the two islands are now municipal units. The province of Kythira ( ...
The earliest known inhabitants (5th or 4th millennium BC) were likely seasonal hunters who traveled there to exploit the presence of migratory birds. The population of the island then changed frequent ...
The mechanism is remarkable for the level of miniaturisation and the complexity of its parts, which is comparable to that of 14th-century astronomical clocks. It has at least 30 gears, although Michae ...
This machine has the oldest known complex gear mechanism and is sometimes called the first known analog computer, although the quality of its manufacture suggests that it had undiscovered predecessors ...
For a more detailed discussion of the history of the magnitude system, see Magnitude (astronomy).Visible totypicalhuman eye Apparentmagnitude Brightnessrelativeto Vega Number of starsbrighter thanappa ...
Hipparchus and his predecessors used various instruments for astronomical calculations and observations, such as the gnomon, the astrolabe, and the armillary sphere.Hipparchus is credited with the inv ...
Relatively little of Hipparchus' direct work survives into modern times. Although he wrote at least fourteen books, only his commentary on the popular astronomical poem by Aratus was preserved by late ...
Archimedes then estimated an upper bound for the number of grains of sand required to fill the Universe. To do this, he used the heliocentric model of Aristarchus of Samos. The original work by Arista ...
