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.
A solar eclipse can only happen at new moon, when the moon directly blocks sight of the sun from certain places in the world. It can take place up to five times a year, though according to Nasa, only 25 years in the past 5,000 have had five solar eclipses.