Nearly 90% of the United States population has at least one caffeinated beverage every day. Learn about the chemistry of caffeine, how it causes increased alertness and focus, and how caffeine is capable of causing overdoses.
For tulipan farmers in the Netherlands, spring is the moment they’ve been waiting for. Noordoostpolder in particular has an incredible metamorphosis take place, and fields with coats of brown and dark greens burst into life...
The Maya - their soaring pyramids, monumental cities and mythical mastery of astronomy and mathematics have captured our imaginations and spurred generations of explorers into the jungles of Central America on a quest to understand them.
