Dark Energy is causing the expansion of the universe to speed up – and not to slow down as everyone expected. This discovery overturns astronomers’ ideas about the history and the fate of the universe. Professor Brian Schmidt describes the discovery that won him the Nobel Prize in Physics last year.
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Tagged with “physics”
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Allison-Levick Memorial Lecture: The accelerating universe
Tagged with science dark energy dark matter universe cosmology supernova physics astronomy
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Big Ideas: The Importance of the Higgs Boson
The recent discovery of a new subatomic particle, believed to be the long-sought Higgs boson, was hailed as one of the biggest announcements in physics for a century - as a human achievement which will be known 300 years from now. The Higgs Boson is the final missing ingredient in the Standard Model of particle physics. This model describes the fundamental particles from which every visible thing in the universe is made, and the forces acting between them. Listen to the scientists at the level of the experiments which led to this discovery.
http://www.abc.net.au/radionational/programs/bigideas/higgs-boson/4246954
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Big Picture Science: Nano Nano
Think small to solve big problems. That, in a nutshell, is the promise of nanotechnology. In this barely visible world, batteries charge 100 times faster and drugs go straight to their targets in the body. Discover some of these nano breakthroughs and how what you can’t see can help you…
…or hurt you? What if tiny machines turn out to be nothing but trouble? We’ll look at the health and safety risks of nanotech.
Plus, scaling up in science fiction: why a Godzilla-sized insect is fun, but just doesn’t fly.
http://radio.seti.org/blog/2012/07/big-picture-science-nano-nano/
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Cosmos: It’s Big, It’s Weird
It’s all about you. And you, and you, and you and you… that is, if we live in parallel universes. Imagine you doing exactly what you’re doing now, but in an infinite number of universes.
Discover the multiverse theory and why repeats aren’t limited to summer television.
Plus, the physics of riding on a light beam, and the creative analogies a New York Times science writer uses to avoid using the word “weird” to describe dark energy and other weird physics.
Also, people who concoct their own theories (some would say fringe) of the universe: is all matter made up of tiny coiled springs?
Guests:
Brian Greene – Physicist and mathematician, Columbia University, and author of The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos Dennis Overbye – Reporter, New York Times Simon Steel – Science educator at University College London Margaret Wertheim – Science writer, author of Physics on the Fringe: Smoke Rings, Circlons, and Alternative Theories of Everything
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Shifting the morals of quantum measurement
Aephraim Steinberg explains how his team tracked photons in a double-slit experiment and what the result means for quantum mechanics.
Tagged with physics light quantum mechanics
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‘Physics Of The Future’: How We’ll Live In 2100? : NPR
Theoretical physicist Michio Kaku describes some of the inventions he thinks will appear in the coming century — including Internet-ready contact lenses, space elevators and driverless cars — in his book Physics of the Future.
http://www.npr.org/2011/11/29/142717081/physics-of-the-future-how-well-live-in-2100
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Lisa Randall: Physics, Science, And The Universe
If you care about the big questions of the physical world, then Lisa Randall would be great company at a dinner party. Over drinks, the Harvard physicist could tell you what we know and don’t know about particle physics and cosmology.
During dinner she’d use poetry to describe the Large Hadron Collider – the biggest machine ever built – and the mysteries it could soon reveal. And with dessert — a passionate argument for the value of scientific thinking and what we lose when we put faith over logic.
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Leonard Susskind on The World As Hologram
Leonard Susskind of the Stanford Institute for Theoretical Physics discusses the indestructability of information and the nature of black holes in a lecture entitled The World As Hologram.
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Deepak Chopra and physicist Leonard Mlodinow: Science And The Spirit
Deepak Chopra and physicist Leonard Mlodinow join us to talk science and spirit.
America was built on science. America was rooted in religion. For 200 years, both thrived. In the last quarter-century, they’ve clashed. And the clash has been costly.
Can we settle this? Maybe. We’ve got two big figures with us today who have taken on the war of worldviews.
Man of spirit, Deepak Chopra. Man of science, Leonard Mlodinow. One a giant in the realm of spiritual guidance. One a Stephen Hawking-scale master of physics and the scientific way.
Both ready to hash it out.
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David Deutsch And The Beginning of Infinity
Quantum computing genius and Oxford don David Deutsch is a thinker of such scale and audaciousness he can take your breath away. His bottom line is simple and breathtaking all at once.
It’s this: human beings are the most important entities in the universe. Or as Deutsch might have it, in the “multiverse.” For eons, little changed on this planet, he says. Progress was a joke. But once we got the Enlightenment and the scientific revolution, our powers of inquiry and discovery became infinite. Without limit.
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