The time it takes the Earth to rotate once is called a sidereal day. The actual rotation time is about 23 hours and 56 minutes.The mean solar day is longer, exactly 24 h â¦ ours, because of the distance the Earth moves in its orbit around the Sun.This orbital motion causes the small daily apparent motion of the Sun to the East in the sky.he time it takes the Earth to rotate once is called a sidereal day. The actual rotation time is about 23 hours and 56 minutes.
Not to be confused with Acadian French or Cajun French. Akkadian (/ÉËkeÉªdiÉn/ akkadÃ», ðððºð ak-ka-du-u2; logogram: ðµð  URIKI ) is an extinct East Semitic language (part of the greater Afroasiatic language family) that was spoken in ancient Mesopotamia.
Alkaptonuria (AKU) is an inborn error of metabolism: a genetic disease caused by a lack of the enzyme homogentisate dioxygenase (HGD). Without HGD, patients cannot break down protein to amino acids, such as tyrosine and phenylalanine, which causes a build up of homogentisic acid (HGA) in the bones, cartilage and urine.