Time. We waste it, save it, kill it, make it. The world runs on it. Yet, ask physicists what time actually is, and the answer might shock you: They have no idea. Even more surprising, the deep sense we have of time passing from present to past may be nothing more than an illusion. How can our understanding of something so familiar be so wrong?

Brian Greene is an American theoretical physicist and string theorist. He has been a professor at Columbia University since 1996. Greene has worked on mirror symmetry, relating two different Calabi-Yau manifolds (concretely, relating the conifold to one of its orbifolds). He also described the flop transition, a mild form of topology change, showing that topology in string theory can change at the conifold point. He has become known to a wider audience through his books for the general public, The Elegant Universe, Icarus at the Edge of Time, The Fabric of the Cosmos, The Hidden Reality, and a related PBS television special.



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Years of Living Dangerously
explores the issues of climate change...
Shrimping Destroys Ecosystems
How Shrimping Has Destroyed Ecuador's Ecosystem
Rhino Horn in China
Following the trail of rhinoceros horn smugglers from South Africa to Southeast Asia.
Tar Sands Blockade
In 2012, Texas landowners and environmental activists came together to organize resistance against a dangerous pipeline being built by a Canadian corporation to bring tar sands oil from Alberta Canada to refineries near the Gulf of Mexico.
Do the Math
a 42-minute documentary film about the rising movement to change the terrifying math of the climate crisis and challenge the fossil fuel industry.
Koch Brothers Exposed
This film uncovers the Kochs' corruption—and points the way to how Americans can reclaim their democracy.
Homeopathy: The Test
BBC Documentary Homeopathy: The Test
Insect Worlds: Them & Us
connections and relationship that we have with insects and other arthropods
What Plants Talk About
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reveals the undemocratic process of forcing dams onto an unconsenting public by governments
Continuum Movie
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a journey into the soul of humanity and a testimony of the damage inflicted by humans on the natural world...
Toxic Tanneries
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A Place at the Table
By the directors of Food, Inc.
When a City Falls
the devastating earthquake that hit Christchurch, New Zealand in 2011.
At the Edge of the World
A modern-day "David vs. Goliath" adventure.
How can it be that year after year, despite clear signs of some serious dangers inherent with our national farm (food) and energy policies, that Congress continues to direct the lion’s share of subsidies to older technologies that involve serious, long-term impacts
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Florida research facilities are testing new methods for making aquaculture more environmentally sustainable and efficient.
Illusion of Time
Couldn't resist. Fascinating subject.
he visits a recycling plant to get to grips with how Polypropylene is recycled through whirling cogs and noisy pistons to become a dark spiders web of plastic ribbon. "I'm going to start pulling it out of sewers, because the earth doesn't eat it" he concludes.
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