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 Great American Eclipse. On Aug. 21, 2017, millions of people from across the world will gather to witness one of natureâs most breathtaking sights: a total solar eclipse. The last one spotted in the continental United States took place in 1979. This one will carve a path across the entire country â and Nebraska happens to be a prime spot for viewing it. As youâre deciding exactly where you want to view the eclipse, keep our Nebraska state parks and recreation areas in mind.