A substance is anhydrous if it contains no water, for example, salts lacking their water of crystallisation. The way of achieving the anhydrous form differs from one substance to another.
A partial solar eclipse at its peak at 3:37 p.m. in Mesa on Oct. 23, 2014. The eclipse was visible over most of North America and covered 44 percent of the Arizona sun. Michael Chow/The Republic.
The last partial solar eclipse visible from North Carolina was already underway at sunrise on Oct. 24, 2014; The last total solar eclipse to pass through North Carolina occurred March 7, 1970; The next total solar eclipse to pass through North Carolina will occur on May 11, 2078; Solar eclipses occur only during a new moon.