900 records found. Displaying 193 - 216.
What is the universe made of? At CERN, the European Organization for Nuclear Research, scientists have searched for answers to this question using the largest machine in the world: the Large… Read More →
The twentieth century ushered in a new world filled with a dazzling array of consumer goods. Even the poorest immigrant girls could afford a blouse or two. But these same immigrant teens… Read More →