One of the most amazing facts in physics is that everything in the universe, from light to electrons to atoms, behaves like both a particle and a wave at the same time. But how did physicists arrive at this mind-boggling conclusion? Learn how in this video. (4:51 min.)

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What is the difference between a theory and a law... and is one “better”? Matt Anticole shows why science needs both laws and theories to understand the whole picture.

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You, me and everyone around us are constantly getting older. Why does this happen? And is there anything humans can do to slow down or even stop the aging process?

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For several centuries, people thought diseases were caused by wandering clouds of poisonous vapor. We now know that this theory is pretty ridiculous, and that diseases are caused by specific bacteria. But how did we get to this new idea of germ theory? Tien Nguyen describes the work of several scientists who discredited a widely accepted theory in a way that was beneficial to human health. (4:38 min.)

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The Zika virus is spread by mosquitoes. It has also been linked to birth defects, especially microcephaly. But how do you get from a mosquito bite to microcephaly?

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What are gravitational waves? Gravity seems like a familiar enough concept, but what exactly is waving?

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A landmark day for Einstein and our understanding of the universe: the detection of gravitational waves. Brian Greene explains the discovery. (3:10 min.)

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After a decades-long quest, The MIT-Caltech collaboration LIGO Laboratories has detected gravitational waves, opening a new era in our exploration of the universe. (5:26 min.)

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We've all got one, and some of us even use it, but throughout history the grey matter between our ears has puzzled even the brightest minds. This video describes the long history of how we discovered the structure and function of the brain and nervous system. (3:15 min.)

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Would developing Star Wars technologies actually require breaking any laws of physics? Surprisingly, the answer is often no.

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