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.
Most calendar years have 2 solar eclipses. The maximum number of solar eclipses that can take place in the same year is 5, but this is rare. According to NASA calculations, only about 25 years in the past 5,000 years have had 5 solar eclipses. The last time this happened was in 1935, and the next time will be in 2206.