A to Z: How Writing Changed the World - Just as handwritten records changed how societies work, the printing press transformed the spread of information, igniting the Industrial Revolution. How did technologies–from pen to paper to printing press—make it all possible?
Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.
NOVA brings you stories from the frontlines of science and engineering, answering the big questions of today and tomorrow, from how our ancestors lived, to whether parallel universes exist, to how technology will transform our lives. Visit the official website to watch full-length documentaries, or explore our world through short-form video, on our digital publication NOVA Next.