January 20, 2012

The Leap Second Gains a 3-Year Reprieve

With no consensus, international delegates postponed for three years a decision on whether to eliminate leap seconds, which help keep the world’s atomic clocks synchronized with Earth’s rotation.
January 20, 2012

Jean-Louis Cohen’s New Book, "The Future of Architecture Since 1889"

In his new book, the noted historian explores the rapid transformation of the built environment over the past century