It takes approximately 48 to 72 hours for your level of hCG to double its levels. What this means for you depends on your body. If your level of hCG prior to pregnancy is 2 miU, it might take two to three days for it to double to 4 mIU and another two to three days for that to double to 8 mIU. This means it could take a week for the most sensitive pregnancy test to determine whether or not you a pregnant.
Navigation at Sea, History of. The first Western civilization known to have developed the art of navigation at sea were the Phoenicians, about 4,000 years ago (c. 2000 B.C.E. ). Phoenician sailors accomplished navigation by using primitive charts and observations of the Sun and stars to determine directions.
We know they dominated sea trade in the Mediterranean for 3,000 years. Now DNA testing and recent archaeological finds are revealing just what the Phoenician legacy meant to the ancient worldâand to our own. Get a taste of what awaits you in print from this compelling excerpt. I am a Phoenician, says the young man, giving the name of a people who vanished from history 2,000 years ago. At least I feel like I'm one of them. My relatives have been fishermen and sailors here for centuries..