Video

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The Unique Form of Human Violence

08/27/15See Comments

Some scientists argue that human uniqueness results from our power as a species and the rapid attainment of that power. In this clip from the 2015...[Read More]

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Humans Are Weird—Here’s How

08/20/15See Comments

Humans have a number of unusual traits that set us apart from other animals as psycholinguist Steven Pinker explains in this clip from the 2015...[Read More]

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Why Are Quantum Mechanics and General Relativity in Conflict?

08/13/15See Comments

There’s an inherent tension between the views of reality described by quantum mechanics and the picture painted by general relativity. World Science Festival co-founder and...[Read More]

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How Can Math Describe Everyday Objects?

08/07/15See Comments

How can the abstract language of mathematics describe everyday objects? In this video, World Science Festival co-founder and Columbia University physicist Brian Greene discusses how...[Read More]

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Time Is of the Essence … or Is It?

08/06/15See Comments

What is time? Isaac Newton described it as absolute, but Einstein proved that time is relative, and, shockingly, that time and space are intricately interwoven....[Read More]

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If the Sun Disappeared, What Would Be the First Sign?

08/05/15See Comments

World Science Festival co-founder and Columbia University physicist Brian Greene entertains an interesting thought experiment: If the sun suddenly winked out of existence, how would...[Read More]

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Keeping Time With Einstein

08/04/15See Comments

Time, on its face—or even on a clock’s face—seems relatively straightforward: One second follows the next, an inexorable progression. But if you ask a physicist...[Read More]

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Imagining Other Universes

07/30/15See Comments

If parallel universes exist, would they be just like ours or different? World Science Festival co-founder and Columbia University physicist Brian Greene speculates about some of...[Read More]

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What Is Heisenberg’s Uncertainty Principle?

07/29/15See Comments

One of the foundations of quantum mechanics is Heisenberg’s uncertainty principle, which describes how we are limited in what we can know about particles at particular points...[Read More]

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Visualizing Emergent Time

07/29/15See Comments

At the 2015 World Science Festival program “Time is of the Essence … or Is It?” a panel of physicists weighed the question of whether...[Read More]