Ancient civilizations used the powerful waterway for trade, agriculture and building projects. In turn, it fueled historic societal growth. ...read more
The Hindu-Arabic number system we use in everyday life was truly revolutionary. Why did it take so long for the West to embrace it? ...read more
A few unfortunate factors make some western states more susceptible to strong, damaging storms. Researchers are collecting data to better predict when hail will fall. ...read more