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.
On average, it takes about 375 years for a total solar eclipse to happen again at the same location. By comparison, a total lunar eclipse, also known as a Blood Moon, can be seen from any location approximately every 2.5 years. There are, on average, about 240 solar eclipses worldwide each century.