April 4, 2014
Mohenjo
Technical
accelerating universe, amazon, big world of the accelerating universe, business, Business News, Hotels, human-rights, medicine, mental-health, Michio Kaku, neuroscience, physicist, Physicist Michio Kaku, physics of the future, physics of the impossible, research, Science, Science News, scientific frontiers, String Theory, super-subatomic world of string theory, technology, Technology News, The Future of the Mind, the Mind, travel, vacation
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Physicist Michio Kaku isn’t afraid of scientific frontiers, whether it’s the super-subatomic world of string theory or the mind-bogglingly big world of the accelerating universe. In books and on TV, he’s delved into the physics of the impossible and the physics of the future.
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Kaku’s latest focus is a real stretch: It’s the scientific frontier that sits between your temples. In his latest book, “The Future of the Mind,” Kaku surveys the burgeoning field of neuroscience. You might think the subject is out of a string theorist’s usual comfort zone, but his breezy, science-fictiony style wins the day. “The Future of the Mind” has been on The New York Times’ best-seller list for the past month.
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July 9, 2013
Mohenjo
Science
amazon, “theory of everything, ”, business, climate, Einstein’s general relativity, fundamental particles, General Relativity, Hotels, imperial college london, mindbendingly large, particle accelerators, Physical Review Letters, quantum entanglement, quantum mechanics, research, Science, Science News, Stanford University, String Theory, technology, Technology News, theoretical physicist, travel, uantum mechanics, vacation, vanishingly small, vibrating strings, wired
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The theory has long been touted as the best hope for a unified “theory of everything,” bringing together the physics of the vanishingly small and the mindbendingly large. But it has also been criticized and even ridiculed for failing to make any predictions that could be checked experimentally. It’s not just that we don’t have big enough particle accelerators or powerful enough computers; string theory’s most vocal critics charge that no experiment could even be imagined that would prove it right or wrong, making the whole theory effectively useless.
Now, physicists at Imperial College London and Stanford University have found a way to make string theory useful, not for a theory of everything, but for quantum entanglement.
“We can use string theory to solve problems in a different area of physics,” said theoretical physicist Michael Duff of Imperial College London. “In that context it’s actually useful: We can make statements which you could in principle check by experiment.” Duff and his colleagues describe their findings in a paper in Physical Review Letters September 2.
String theory suggests that matter can be broken down beyond electrons and quarks into tiny loops of vibrating strings. Those strings move and vibrate at different frequencies, giving particles distinctive properties like mass and charge. This strange idea could unite all the fundamental forces, explain the origins of fundamental particles and connect Einstein’s general relativity to quantum mechanics. But to do so, the theory requires six extra dimensions of space and time curled up inside the four that we’re used to.
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http://www.wired.com/wiredscience/2010/09/stringy-quantum/
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James' World 2 