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The Sound of Quantum Drums |
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Newton's third law of motion postulates that any force acting upon a body will produce an opposing force of the same strength acting against the first one. This seems not to be entirely true, as quantum mechanics presents an interesting phenomenon called the Aharonov-Bohm effect.Also known as the Ehrenberg-Siday... |
5 December 2007
06:30 GMT |
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All matter in the universe is characterized by a number called entropy, which measures the disorder inside an object. Probabilistic calculations reveal that all the stars in the universe might contribute with about 1E 79 units of entropy, or 1 followed by 79 zeros, if you want. However, a recently published study sho... |
19 January 2008
04:46 GMT |
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Most of the problems related to lasers nowadays is the so-called photon noise, which determines fluctuations in the laser beam intensity, due to random quantum mechanics interactions, that ultimately reduces the sensitivity of the device. Physicists from the Planck Institute for Gravitational Physics (known as the Al... |
26 January 2008
05:23 GMT |
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Quantum tunneling represents a quantum mechanics phenomenon, which allows a given particle to violate certain classical mechanics principles. For example, in order to extract an electron from the atom, one must contribute with an input of energy equal to or higher than that of the respective electron. However, quantu... |
26 January 2008
06:35 GMT |
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Quantum suicide basically states one thing: it is possible that our lives may be depending on the state of a single subatomic particle. Quantum suicide represents a thought experiment proposed by a couple of physicists in the late 1980s in order to make a distinction between the quantum mechanics and the Everett many... |
28 January 2008
08:46 GMT |
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Some may say that such actions are close to impossible, but researchers at the Relativistic Heavy Ion Collider, RHIC for short, have already achieved the performance of correcting the trajectory of particles traveling at 99,995 percent of the speed of light, by measuring fluctuations of particle beams as they speed t... |
7 February 2008
08:50 GMT |
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Two different drums should in fact produce two different sound spectrums, which pretty much means that if one were to identify one of the two, then he/she could do it just by listening for the unique sound it gives off. It may not seem like a very important property for most of us, but the truth is that we rely on to... |
11 February 2008
08:44 GMT |
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