Body language is a form of non-verbal communication, which consists of body posture, gestures, facial expressions, and eye movements. Humans send and interpret such signals almost entirely subconsciously.
"Richard Feynman is one of the most iconic, influential and inspiring scientists of the 20th century. He helped design the atomic bomb, solved the mystery of the Challenger Shuttle catastrophe and won a Nobel Prize. Now, 25 years after his death - in his own words and those of his friends and family - this is the story of the most captivating communicator in the history of science"
2013 • People
Population statistics are like crystal balls -- when examined closely, they can help predict a country's future (and give important clues about the past). Kim Preshoff explains how using a visual tool called a population pyramid helps policymakers and social scientists make sense of the statistics, using three different countries' pyramids as examples.
How did we become our planet's only global species, at home in every environment on Earth. Learn how our ancestors found a way through the deserts and out of Africa. Explore the meeting of Neanderthals and humans. And discover how we survived the Ice Age.