love art T-Shirt
$24
Description: There is no easy answer to this question due to the many different classifications of computers. The first mechanical computer, created by Charles Babbage in 1822, doesn't resemble what most would consider a computer today. Therefore, this page provides a listing of each of the computer firsts, starting with the Difference Engine and leading up to the computers we use today.
Description: The design for the traction trebuchet was born in Asia and spread throughout Europe and the Middle East. It saw service from 1,000 AD to 1,300 AD, mostly during the crusades, used to liberate cities in the Holy Land. The trebuchet had a static frame, a dynamic beam on an axle, a sling to hold the payload, and ropes on the opposite side to pull down the beam to "fire." It was manned by a team of 20 to 140 troops, depending on its size.
Description: he main symbol for her magic circle is one circle in the center, within it is an eye, and surrounding it are the phases of the moon. This circle is interconnected to 8 more, from which 4 of them are bigger than the other 4. The little circles contain: the avatars of the mashin in Magic Knight Rayearth. Three of the symbols in the diagonals of the circle are the Rayearth "machine" symbols. The fourth diagonal looks to represent the symbol for infinity.