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Stephen Hawking Favorite Places II

   2018    Science    HD
Commander Stephen Hawking takes another journey in his space ship, the SS Hawking, this time to Venus, the Sun and out to the Eagle Nebula...but things don't always go according to the flight plan...
Series: Stephen Hawking's Favorite Places

The Quasar Enigma

   2018    Science    HD
Mysterious lights shine out from the edge of space, brighter than a trillion suns. They had to be the brightest objects we've ever seen in the universe, putting out amounts of energy that we couldn't possibly explain. So powerful, they can incinerate planets and rip stars to pieces. These are among the most mysterious and most energetic phenomenon in the universe. They can destroy galaxies, but may also be the key to their survival. These objects are a hotbed of all kinds of crazy physics. These celestial powerhouses are called quasars, and we may owe them our very existence.
Series: How the Universe Works Season 6

Do You Trust this Computer

   2018    Technology    HD
Science fiction has long anticipated the rise of machine intelligence. Today, a new generation of self-learning computers is reshaping every aspect of our lives. Incomprehensible amounts of data are being collected, interpreted, and fed back to us in a tsunami of apps, smart devices, and targeted advertisements. Virtually every industry on earth is feeling this transformation, from job automation to medical diagnostics, from elections to battlefield weapons. Do You Trust This Computer? explores the promises and perils of this developing era. Will A.I. usher in an age of unprecedented potential, or prove to be our final invention?

Numbers as God

   2018    Science
Mathematician Dr Hannah Fry explores the mystery of maths. It underpins so much of our modern world that it's hard to imagine life without its technological advances, but where exactly does maths come from? Is it invented like a language or is it something discovered and part of the fabric of the universe? It's a question that some of the most eminent mathematical minds have been wrestling with. To investigate this question, Hannah goes head first down the fastest zip wire in the world to learn more about Newton's law of gravity, she paraglides to understand where the theory of maths and its practice application collide, and she travels to infinity and beyond to discover that some infinities are bigger than others.
In this episode, Hannah goes back to the time of the ancient Greeks to find out why they were so fascinated by the connection between beautiful music and maths. The patterns our ancestors found in music are all around us, from the way a sunflower stores its seeds to the number of petals in a flower. Even the shapes of some of the smallest structures in nature, such as viruses, seem to follow the rules of maths. All strong evidence for maths being discovered. But there are those who claim maths is all in our heads and something we invented. To find out if this is true, Hannah has her brain scanned. It turns out there is a place in all our brains where we do maths, but that doesn't prove its invented.
Experiments with infants, who have never had a maths lesson in their lives, suggests we all come hardwired to do maths. Far from being a creation of the human mind, this is evidence for maths being something we discover. Then along comes the invention of zero to help make counting more convenient and the creation of imaginary numbers, and the balance is tilted in the direction of maths being something we invented. The question of whether maths is invented or discovered just got a whole lot more difficult to answer
Series: Magic Numbers

Building the Sun The 250 Million Degree Problem

   2017    Technology
Scientists investigate the way the Sun builds its power -- through fusion -- hoping to find a way to use fusion as a less dangerous and less radioactive waste-producing path to energy than fission. But there are some major difficulties along the way. Fusion really is the perfect way to make energy. We have millions of years worth of fuel. It produces no long-lived radioactive waste. If we can solve the engineering challenges, energy will become cheaper, more available for everybody.
Series: Catalyst
Prehistoric America
Prehistoric America

   2003    Nature
Bible's Buried Secrets
Bible's Buried Secrets

   2011    Culture
The Human Body
The Human Body

   1998    Medicine
Nature Great Events
Nature Great Events

   2009    Nature
Chased by Sea Monsters
Chased by Sea Monsters

   2003    Science
Kingdom of Plants
Kingdom of Plants

   2012    Nature
The Nazis, A Warning From History
The Nazis, A Warning From History

   1997    History