Candles are a leading cause of home fires and fatalities. Soot on the walls and furnishings is unsightly, and may also be a sign of serious problems. It may also be unhealthy, as inhalation of minute particles of soot has been documented to cause health problems.
It is a popular misconception that the phenomenon of a total eclipse of the sun is a rare occurrence. Quite the contrary. Approximately once every 18 months (on average) a total solar eclipse is visible from some place on the Earthâs surface. That's two totalities for every three years.
Solar eclipses are two to five per year, but the ground covered by totality is only a band of about 30 miles wide, length being that portion of the globe which is under the moon's shadow. Solar eclipse always occurs at the end of an Islamic month. The closest time between solar and lunar eclipse is 2 weeks. Lunar eclipse only occurs at full Moon, when the earth passes between the Sun and Moon and the Earth's shadow sweeps across a portion of Moon's surface and an eclipse of the Moon is seen. Lunar eclipses are less frequent that solar, and at any given location could be zero to three per year.