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 an accident of nature. They are so spectacular because the Moon and the Sun appear almost the same size. In reality the Sun is much further away then the Moon, but much larger. The Moon orbits the Earth once a month, and eclipses happen if it lines up exactly with the Earth and the Sun. Solar eclipses occur at New Moon, when the Moon is between Earth and the Sun. Lunar eclipses occur at Full Moon, when Earth is between the Sun and the Moon. Eclipses do not take place every month because the orbits of the Moon and Earth are tilted at an angle. Most of the time, the line-up is not precise enough for an eclipse. However, there are more eclipses than people are generally aware of: