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 are generally two solar eclipses and two lunar eclipses each year. Sometimes, we get two partial eclipses a month apart in place of one total eclipse. For example, in 2011 there will be four partial solar eclipses, and no total eclipses. The maximum possible number of eclipses is five in a year, which is very rare.