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.
Solar eclipses are relatively rare; they happen when the Moon moves directly and precisely in front of the Sun. Why are they so infrequent, and why do solar eclipses always come in pairs with lunar eclipses? It is all down to a mix of orbital alignments and cosmic coincidences.