Giant squid is the invertebrate animal greater
The invertebrate animal greater of the world is the giant squid of the Architeuthis sort dux, that it can arrive to measure 18 meters and to weigh 900kilos. These mysterious beings live in the deep of the ocean, between 200 and 1000 m of depth, and they had been never seen with life, reason for which is known very little on its habits. Owners of the biggest eyes of the nature (they can arrive 30cm of diameter), already had left marks of its ticket in the tempering regions of all the oceans. The specimens studied until had been today found deceased, floating for there, or in the stomach of some whale. The giant squid was famous in the world all through the workmanship of Julio Verne Twenty A thousand Léguas Submarine.
The sun clock, the oldest used object for the man to measure the time, functions observing it change of position and length of the projected shades for the Sun in the different periods of the day. Located in Egypt, the first clocks, that date approximately of 3500 B.C., were composites only for a pillar, called gnomon, and could show the two halves of the day (the noon was the moment of the lesser shade). Later, scales of measures had been added in return of the column so that the days could be divided in shorter periods. The first evidence of division of the time in equal parts date of 1500 B.C.