Quantum mechanics news, blogs, and links. According to Wikipedia: Quantum mechanics is a fundamental branch of theoretical physics that replaces classical mechanics and classical electromagnetism at the atomic and subatomic levels. It is...
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Quantum mechanics news, blogs, and links. According to Wikipedia: Quantum mechanics is a fundamental branch of theoretical physics that replaces classical mechanics and classical electromagnetism at the atomic and subatomic levels. It is the underlying mathematical framework of many fields of physics and chemistry, including condensed matter physics, atomic physics, molecular physics, computational chemistry, quantum chemistry, particle physics, and nuclear physics. Along with general relativity, quantum mechanics is one of the pillars of modern physics.
January 4th marks the passing of Erwin Schrödinger. Schrödinger was an Austrian physicist who was one of the founders of quantum mechanics. He described the quantum state of a particle by its wavefunction. His equation is one of the basic equation of quantum mechanics.
He is also famous for a thought experiment that has become known as Schrödinger's cat. The Heisenberg principle states the position and the velocity of a particle cannot be...
One YouTuber claims it does and this highly informed video both presents and refutes his claims most educationally and, in the last half, hilariously:
Your Thoughts?
Posted in Atheism, Atheist Videos, New Atheism, Physics, Science, Videos
From Wikipedia:
In quantum mechanics, the Heisenberg uncertainty principle states that certain pairs of physical properties, like position and momentum, cannot both be known to arbitrary precision. That is, the more precisely one property is known, the less precisely the other can be known… The measurement of position necessarily disturbs a particle’s momentum, and vice versa.
Stated a little more simply, the sheer act of measuring a particle...
December 5th is Werner Heisenberg's birthday. Heisenberg was a German physicist who is best known for the uncertainty principle of quantum mechanics.
The uncertainty principle is one of the main differences between the study of classical mechanics and quantum mechanics. In classical mechanics, a physical quantity can be simultaneously assigned to any particle. In quantum mechanics, the uncertainty principle states the more closely you measure...
While I'm thrilled to see How to Teach Physics to Your Dog listed on Amazon, I am distressed to see it offered as a pair with something called The Intention Experiment by Lynne McTaggart. I'm not linking to the Amazon page for that book, because it's a giant pile of crap, and I wouldn't want anyone to accidentally one-click-order it after following a link from my page.
If you should choose to look it up, you can read bits and pieces of it via...
What I find most interesting is that even when the Corinthians are engaging in the craziest, most un-Christlike behavior, Paul doesn't deny their faith. He never calls them not Christian. I find this to be very good news. Christianity is not like Quantum Mechanics. In Quantum Mechanics, there is no question of entanglement. The states are so obviously entangled that the false conclusion may lead us to reject the initial hypothesis entirely...
I agree with the statement that most people throw the cat paradox around without really understanding it -- mainly because they don't fully grasp the weirdness of quantum mechanics. Please allow me....
So you know that model of the atom we all know and love? Electron is a little tiny ball orbiting around a nucleus that's a bunch of other bigger balls representing protons and electrons (aka Bohr's atomic model)? Well, that's a pretty...
Physicists have demonstrated the first "universal" programmable quantum information processor able to run any program allowed by quantum mechanics -- the rules governing the submicroscopic world -- using two quantum bits (qubits) of information. The processor could be a module in a future quantum computer, which theoretically could solve some important problems that are intractable today.
One of the things I forgot to mention in yesterday's post about why I like AMO physics is that AMO systems have proven to be outstanding tools for solving problems from other fields of physics. In particular, ultra-cold atoms have proven to be a fantastic venue for studying problems from condensed matter physics. There's a comprehensive review of the subject in this Reviews of Modern Physics paper, which is also freely available on the arxiv...
Shrinking cells snares charges in less than one-trillionth of a secondBoston College researchers have observed the "hot electron" effect in a solar cell for the first time and successfully harvested the elusive charges using ultra-thin solar cells, opening a potential avenue to improved solar power efficiency, the authors report in the current online edition of Applied Physics Letters.When light is captured in solar cells, it generates free...
New J. Phys.11, 113057 (2009)The ampere is the standard unit of electrical current, but its definition is arbitrary. Physicists would like to redefine the ampere in terms of the motion of a small number of electrons, so that the standard is based