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.
There can be as many as seven eclipses (solar plus lunar) in any one year. In 1935 there were five solar eclipses - four partial and one annular. On average, there is a total solar eclipse visible somewhere about every 18 months. However, from any one location on Earth, total eclipses take place on average only once in several hundred years.