Archivo de la categoría: World Science Festival

To Infinity and Beyond: The Accelerating Universe

[Visto: 764 veces]

Published on Jul 15, 2015

Dark energy is cosmology’s biggest mystery—an anti-gravitational force that confounds the conventional laws of physics. It makes up more than two-thirds of the cosmos, but science is still grappling to explain what dark energy actually is. In this program, top physicists search for clues to this mystery in both the earliest moments of the universe and far into the future of the cosmos.

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PARTICIPANTS: Josh Frieman, Priyamvada Natarajan, Adam Riess, Jan Tauber, Neil Turok
Original Program Date: 05/28/2015

Lawrence Krauss’s introduction. 00:15

The geometry of space. 4:28

How to create the clumps from inflation? 8:50

Einsteins equations. 13:23

Participant Introductions. 17:50

What does expansion mean? 20:00

what have we learned since the cosmological constant? 29:20

What do the observations show? 37:00

There is no evidence of gravitational waves. 43:00

What is the useless useful? 46:04

Leading the hunt for dark energy. 53:51

Proving a cosmological constant. 1:02:00

Will we be able to measure that dark energy as the cosmological constant in this lifetime? 1:07:01

The history of the universe and forming a black hole. 1:16:59

Category
Science & Technology

The Illusion of Certainty: Risk, Probability, and Chance / World Science Festival

[Visto: 1661 veces]

Full 90 Minute Program: Stuff happens. The weather forecast says it’s sunny, but you just got drenched. You got a flu shot—but you’re sick in bed with the flu. Your best friend from Boston met your other best friend from San Francisco. Coincidentally. What are the odds? Risk, probability, chance, coincidence—they play a significant role in the way we make decisions about health, education, relationships, and money. But where does this data come from and what does it really mean? How does the brain find patterns and where can these patterns take us? When should we ditch the data and go with our gut? Join us in a captivating discussion that will demystify the chancy side of life. Sigue leyendo →

World Science Festival 2010 / Notes & Neurons: In Search of the Common Chorus

[Visto: 1615 veces]

About This Video

Is our response to music hard-wired or culturally determined? Is the reaction to rhythm and melody universal or influenced by environment? John Schaefer, scientist Daniel Levitin, and musical artist Bobby McFerrin engage in live performances and cross-cultural demonstrations to illustrate music’s noteworthy interaction with the brain and our emotions. Sigue leyendo →

World Science Festival 2010 / Astronaut Diary: Life in Space

[Visto: 1152 veces]

About This Video

Astronauts who’ve lived on the International Space Station and “walked” in space tell all: what it’s like to ride on a space ship, and to eat, sleep, exercise, and even do science—in space. Hear firsthand from the world’s most intrepid explorers—including astronauts Tracy Caldwell Dyson, Leland Melvin, and Sandra Magnus—and Dava Newman, designer of an innovative spacewalking suit, about what it’s like to soar upward and leave our home, planet Earth, behind. Journalist Miles O’Brien moderates. Sigue leyendo →

World Science Festival 2010 / Food 2.0: Feeding a Hungry World

[Visto: 1073 veces]

About This Video

By 2050, one of every four people on Earth will go hungry unless food production more than doubles. Science-based agriculture has proposed unconventional new tools—earthworms, bacteria, and even genes from sunny daffodils—to meet this towering challenge. But will such innovative ideas be enough? And can we bridge the ideological divide over genetically modified foods that separates scientists and environmentalists? What role does eating and farming locally play in the next green revolution? Pamela Ronald, Louise Fresco, and Monty Jones—influential voices from a wide variety of perspectives—engage in a spirited discussion and debate on issues vital to our future.

Made possible with the support of the John Templeton Foundation, as part of the Big Ideas Series Sigue leyendo →

World Science Festival 2009: Avian Einsteins, Part 1 of 5

[Visto: 973 veces]

World Science Festival 2009: Avian Einsteins, Part 1 of 5 from World Science Festival on Vimeo.

Filmed on:
June 13, 2009

How do we learn to speak? What is the connection between language and movement? Join a broad and distinguished panel on an exploration of how striking parallels between bird and human brains are providing sharp new insights into how we acquire language and the links between hearing and movement.

This event was moderated by Faith Salie and features author Jonathan Rosen; neurobiologist Erich Jarvis; scientist and noted bird researcher Irene Pepperberg; professor of comparative cognition at Cambridge University, Nicola Clayton; Head of the Laboratory of Animal Behavior at CUNY, Ofer Tchernichovski; and David Rothenberg, professor of philosophy and music at the New Jersey Institute of Technology.

“Avian Einsteins” also features a special appearance by Snowball, the world famous dancing cockatoo, and owner, Irena Schulz. Sigue leyendo →