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.
Using the above categories, the distribution of the 3,479 total eclipses is shown in the table below. There are a minimum of two and a maximum of five lunar eclipses in every calendar year. Statistics for the number of eclipses each year over the 5000 year period are listed below. The longest eclipses of the 5,000 year period are listed below.