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Science (non-SETI) :
Interesting Physics
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![]() ![]() Volunteer tester Send message Joined: 20 Jun 99 Posts: 6285 Credit: 109,191,755 RAC: 44 ![]() |
I found another interesting article on my smart phone that I thought was worth sharing. This new phone has been the source of a remarkable amount of information. This thread can be for anything interesting in physics that may not warrant a separate thread. http://www.nature.com/news/quantum-spookiness-passes-toughest-test-yet-1.18255 Steve Warning, addicted to SETI crunching! Crunching as a member of GPU Users Group. GPUUG Website |
![]() Volunteer moderator Volunteer tester ![]() Send message Joined: 28 Oct 09 Posts: 33582 Credit: 13,665,976 RAC: 8,395 ![]() ![]() |
I have some interesting Berkeley news here: Experiment attempts to snare a dark energy ‘chameleon’ rOZZ Music Pictures |
![]() ![]() Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 ![]() |
The MAX-IV laboratory will host the first two 'fourth-generation' light sources. Electrons have begun circulating in a synchrotron in Lund, Sweden, in what researchers hope marks the start of a new era for X-ray science. http://www.nature.com/news/next-generation-x-ray-source-fires-up-1.18253 Our universe. ![]() |
Nick: ID 666 ![]() Volunteer tester Send message Joined: 18 May 99 Posts: 11700 Credit: 31,897,669 RAC: 2,611 ![]() ![]() |
For those with access to the BBC's iPlayer, there is a series presented by Jim Al-Khalili dealing with the spooky entanglement available at the moment. The Secrets of Quantum Physics, Let there be Life Physicist Jim Al-Khalili routinely deals with the strangest subject in all of science - quantum physics, the astonishing and perplexing theory of sub-atomic particles. But now he's turning his attention to the world of nature. Can quantum mechanics explain the greatest mysteries in biology? |
![]() ![]() Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 ![]() |
For those with access to the BBC's iPlayer, there is a series presented by Jim Al-Khalili dealing with the spooky entanglement available at the moment. And let there be light. ![]() Hopefully Jim Al-Khalili will let Swedish Television show that documentry. Many of his other series has been broadcasted here. |
![]() ![]() Volunteer moderator Volunteer tester Send message Joined: 9 Apr 04 Posts: 6591 Credit: 1,918,682 RAC: 1,859 ![]() ![]() |
I was at Trieste Area Science Park while the Elettra Synchrotron Radiation Source was being built. This in the Nineties. Once a Slovak woman who was a physicist working on the Elettra came to my office and asked me for advice. Some mechanical parts which were parts of the magnets focussing the beams had been built with an error of one millimeter from the blueprints by an Italian firm which I will not name. She told me that if they sent back the parts it would impose a delay of about six months on the building schedule. Do you think we should install them and pray? she asked me. I said yes. Since Elettra started working on schedule and has now been coupled to a free electron laser, I think my judgment was right. But I received no recognition. Tullio. |
![]() ![]() Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 ![]() |
About building schedule, Tullio. They at MAX IV will build eight experimental stations, or beamlines, around the synchrotron, which they plan to open on 21 June 2016, a date chosen for the symbolism of the summer solstice. I hope our mechanical parts are right. |
![]() ![]() Volunteer moderator Volunteer tester Send message Joined: 9 Apr 04 Posts: 6591 Credit: 1,918,682 RAC: 1,859 ![]() ![]() |
Elettra has 12 beamlines. One of them was devoted to scanning for mammary cancer. Elettra is used also by scientists from Eastern Europe since is nearer to them than Grenoble or Hamburg.I believe your mechanical parts will be perfect. Italian firms are rather sloppy sometimes. Tullio |
![]() ![]() ![]() Volunteer tester ![]() Send message Joined: 19 Nov 00 Posts: 40475 Credit: 41,350,878 RAC: 1,897 ![]() ![]() |
With only 8 posts and 3 from the usual spammer, I decline to join in. |
Sirius B ![]() Volunteer tester ![]() Send message Joined: 26 Dec 00 Posts: 17871 Credit: 2,457,852 RAC: 1,557 ![]() ![]() |
With only 8 posts and 3 from the usual spammer, I decline to join in. So not very intelligent then to state the above. Usual post count boost is it? Unless you have something constructive to say on a science thread, stop spamming it with your usual twaddle. |
Darth Beaver ![]() ![]() Send message Joined: 20 Aug 99 Posts: 6700 Credit: 20,697,806 RAC: 252 ![]() |
Very Interesting Science man . soon as they can get phones to do it I'm in the shop to get one . And the N.S.A , C.I.A , F.B.I , A.F.P , K.G.B, blah blah balh Can't spy on me ![]() |
![]() ![]() Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 ![]() |
For those with access to the BBC's iPlayer, there is a series presented by Jim Al-Khalili dealing with the spooky entanglement available at the moment. For non british here is Jim Al-Khalili. Evening Discourse at the Royal Institution, Professor Jim Al-Khalili explores how the mysteries of quantum theory might be observable at the biological level Jim Al-Khalili - Quantum Life: How Physics Can Revolutionise Biology https://www.youtube.com/watch?v=wwgQVZju1ZM Jack Tuszynski Biology on the Threshold of Quantum Revolution https://www.youtube.com/watch?v=Gxqxb3xnntQ |
![]() ![]() Volunteer moderator Volunteer tester Send message Joined: 9 Apr 04 Posts: 6591 Credit: 1,918,682 RAC: 1,859 ![]() ![]() |
Watched them both. Not much new, after reading Schroedinger's "What is life?" and Penrose's "The emperor's new mind" and "Shadows of the mind". I had an exchange of letters with Penrose on this subject in 1995. That is twenty years ago. Tullio |
![]() ![]() Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 ![]() |
Watched them both. Not much new, after reading Schroedinger's "What is life?" and Penrose's "The emperor's new mind" and "Shadows of the mind". I had an exchange of letters with Penrose on this subject in 1995. That is twenty years ago. To us commoners it's very new Tullio:) It was "only" 70 years ago Schrödinger when he come up with the idea that genes contained some kind of "code". We now call it DNA. http://www.theguardian.com/science/blog/2013/feb/07/wonders-life-physicist-revolution-biology |
![]() ![]() Volunteer moderator Volunteer tester Send message Joined: 9 Apr 04 Posts: 6591 Credit: 1,918,682 RAC: 1,859 ![]() ![]() |
The only new thing I learned is that a DNA mutation can derive from a quantum tunneling effect in a Hydrogen bond. I also learned that European robin birds rely on entanglement in a crystal in their beaks to navigate in the Earth's magnetic field. Bravi robin! Tullio |
![]() Volunteer moderator Volunteer tester ![]() Send message Joined: 28 Oct 09 Posts: 33582 Credit: 13,665,976 RAC: 8,395 ![]() ![]() |
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![]() ![]() ![]() Volunteer tester ![]() Send message Joined: 19 Nov 00 Posts: 40475 Credit: 41,350,878 RAC: 1,897 ![]() ![]() |
What a load of rubbish!!!!!!! None of this helps in the long run. Suppose the universe is somehow entirely predetermined, the flutter of every photon carved in stone since time immemorial. In that case, no one would ever have a choice about anything. “The freedom of choice loophole will never be closed fully,” says Kofler. As such, it’s not really worth experimentalists worrying about – if the universe is predetermined, the complete lack of free will means we’ve got bigger fish to fry. For the layman, we simply don't know, we think we might know, we may never know. We are hedging out bets, and having a bad hair day. So what would Einstein have made of this new result? Unfortunately he died before Bell proposed his inequality, so we don’t know if subsequent developments would have changed his mind, but he’d likely be enamoured with the lengths people have gone to prove him wrong. “I would give a lot to know what his reaction would be,” says Zeilinger. “I think he would be very impressed.” I think Einstein would sit down with a clean sheet of paper and start again. I am disappointed with the New Scientist, a publication I have respected for many years. Probably trying to compete with the Huff in a difficult world. |
![]() ![]() Volunteer moderator Volunteer tester Send message Joined: 9 Apr 04 Posts: 6591 Credit: 1,918,682 RAC: 1,859 ![]() ![]() |
Frankly I don't understand. The two electrons in A and B are not entangled. If each of them sends out a photon with which it is entangled and if the photons arrive at the same instant in C then the electrons in A and B become entangled. This is what I get from the New Scientist article, but maybe the article is not clear enough and I should read the full article. Tullio |
KLiK Volunteer tester Send message Joined: 31 Mar 14 Posts: 1296 Credit: 11,116,844 RAC: 8,314 ![]() ![]() |
What a load of rubbish!!!!!!! I agree with u...even if experiment is OK & proves that some things r predetermined 2 happen...that doesn't mean I don't have a choice how 2 respond 2 it! if a war happens, u have choices: 2 fight, 2 hide & 2 run... if a comet strikes, u have choices: 2 make love, 2 run 4 ur life, 2 escape 2 Moon & back, 2 hide underground, 2 hide under d sea... d experiment only says: "Whatever happens, will happen. But if u don't have choices & free will, like electrons don't, then u'll change also!" ;) ![]() non-profit org. Play4Life in Zagreb, Croatia, EU |
![]() ![]() Send message Joined: 14 Oct 09 Posts: 14106 Credit: 655,366 RAC: 0 ![]() |
Frankly I don't understand. The two electrons in A and B are not entangled. If each of them sends out a photon with which it is entangled and if the photons arrive at the same instant in C then the electrons in A and B become entangled. This is what I get from the New Scientist article, but maybe the article is not clear enough and I should read the full article. Some more on loopholes. https://en.wikipedia.org/wiki/Loopholes_in_Bell_test_experiments http://arxiv.org/abs/1508.05949 http://michelvanbaal.weblog.tudelft.nl/2014/04/22/the-loophole-free-what/?TUD-USE-COOKIES=yes http://michelvanbaal.weblog.tudelft.nl/2015/02/02/the-loophole-free-what-part-2/ Welcome to the Hanson lab at Delft University of Technology! http://hansonlab.tudelft.nl/ |
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