To give your healthcare provider important information about the current status of your metabolism, including the health of your kidneys and liver as well as electrolyte and acid/base balance and levels of blood glucose and blood proteins; to monitor known conditions, such as hypertension, and to monitor the use of medications to check for any ...
Ancient Greeks. In 2008, researchers said a reference to a total eclipse was found in Homer's Odyssey, with the lines The sun has perished out of heaven, and an evil mist has overspread the world. The Ancient Greeks believed a total eclipse to be a bad omen.
Eratosthenes calculated the circumference of the Earth without leaving Egypt. Eratosthenes knew that at local noon on the summer solstice in the Ancient Egyptian city of Swenet (known in ancient Greek as Syene, and now as Aswan) on the Tropic of Cancer, the Sun would appear at the zenith, directly overhead.