• New Podcast: Cosmic Beginnings & Quantum Domination

    Updated: 2012-06-01 01:53:36
    Questioning the Foundations FQXi's 2012 Essay Contest Is Now Open Search FQXi show search help You can use the terms and or in your search or phrases are resolved first , then the and phrases . For example , searching for black hole and galaxy or universe will find articles that have the phrase black hole in them and also have either galaxy or universe in them . Please note that other search syntax like quote marks , hyphens , etc . are not currently supported . When you view web pages with matches to your search , the terms you searched for will be highlighted in yellow . hide search help Forum Home Introduction Terms of Use Order posts : by chronological order most recent first Posts by the blogger are highlighted in orange posts by FQXi Members are highlighted in . blue By using the

  • Me not falling through the ground and Pauli's Exclusion Principle

    Updated: 2012-05-31 23:02:10
    I explained to myself that I don't fall through the ground due to electrons repelling. Using classical electrostatic repulsion. Once in a while I hear it explained through Pauli's exclusion...

  • predicate logic translation

    Updated: 2012-05-31 22:56:32
    Use the predicates A(x; y) : x admires y B(x; y) : x attended y W(x; y) : x is the wife of y P(x) : x is a professor S(x) : x is a student L(x) : x is a lecture and the nullary function...

  • predicate logic translation, help

    Updated: 2012-05-31 22:54:36
    Use the predicates A(x; y) : x admires y B(x; y) : x attended y W(x; y) : x is the wife of y P(x) : x is a professor S(x) : x is a student L(x) : x is a lecture and the nullary function...

  • Question Regarding Operational Amps

    Updated: 2012-05-31 22:22:11
    Hello , i would to ask if it is possible for an INVERTING summing amplifier of three input voltages ( V1,V2,V3) to have some of them negative and some positive i.e V10 and V2

  • Questions involving a set under the usual real metric

    Updated: 2012-05-31 22:02:33
    *1. The problem statement, all variables and given/known data* Let S={1/k : k=1, 2, 3, ...} and furnish S with the usual real metric. Answer the following questions about this metric space: ...

  • Spanish Relativity Meeting in Portugal, ERE2012 (3rd circ.)

    Updated: 2012-05-31 21:59:09
    THIRD ANNOUNCEMENT SPANISH RELATIVITY MEETING IN PORTUGAL ERE2012 “Progress in Mathematical Relativity, Gravitation and Cosmology” 3-7 September 2012, Guimarães, Portugal. w3.math.uminho.pt/~ERE2012 The Spanish Relativity Meeting (ERE) is an international conference devoted to Relativity and Gravitation and it is supported by the Spanish Society of Gravitation and Relativity (SEGRE) http://www.segre.es/en/congresos.shtml. Invited speakers – Alan Rendall (Albert Einstein [...]

  • 25 Years of Topological Quantum Field Theory

    Updated: 2012-05-31 21:27:07
    It occurred to me today that right about now is the time someone should have chosen as the date for a celebration of the 25th anniversary of the birth of the idea of “Topological Quantum Field Theory”, as well as … Continue reading →

  • The Casimir Effect - The Ultimate Free Ride ... into Space?

    Updated: 2012-05-31 01:04:21
    Science has at times sought to reach further than it can actually deliver, such as in the case of attempts to build a perpetual motion machine. Some recent reports seem to be dancing dangerously close to this line, as they've reported on the invention of a new propulsion method for spacecraft, based on the work of a teenage Egyptian student named Aisha Mustafa:...Read Full Post

  • Ask a Physicist: Strings & Sounds (May 30, 2012 podcast)

    Updated: 2012-05-30 05:00:00
    *You* ask string theorist Joe Polchinski why extra dimensions should be interpreted as "real" & Nobel Laureate particle physicist Frank Wilczek about underwater sounds.

  • Algebro-geometric methods in fundamental physics, Bad Honnef, Germany

    Updated: 2012-05-29 19:51:32
    The issue of this WEH Seminar goes back to the very early period where physical problems started to trigger the development of mathematical methods. That means, it started with astronomical problems of describing the motion of celestial bodies. A first essential milestone in that history was the invention of elliptic functions. This then has been [...]

  • Living Reviews in Relativity: “Stationary Black Holes” (major update) and “Dynamical Boson Stars”

    Updated: 2012-05-29 18:01:53
    This month, Living Reviews in Relativity has published two new articles, a major update of the review “Stationary Black Holes: Uniqueness and Beyond” by Piotr T. Chrusciel, Joao Lopes Costa, and Markus Heusler and a new article on “Dynamical Boson Stars” by Steven L. Liebling and Carlos Palenzuela. Please find the abstracts and further details below. —————— PUB.NO. [...]

  • Experimental Search for Quantum Gravity – the hard facts, Perimeter Institute

    Updated: 2012-05-29 14:38:35
    Quantum Gravity tries to answer some of the most fundamental questions about the quantum nature of spacetime. To make progress in this area it is mandatory to establish a contact to observations and experiments and to learn what the “hard facts” on quantum gravity are, that nature provides us with. Quantum Gravity is a field where [...]

  • DOE awards $2.5 million to Fermilab’s Brendan Casey

    Updated: 2012-05-29 14:00:38
    This month, the Department of Energy’s Office of Science named Fermilab's Brendan Casey a recipient of the 2012 DOE Early Career Research Award. It will support his research on the detector technology for the Muon g-2 experiment with a total of $2.5 million over five years.

  • Exploring New Horizons with Gravitational Waves, Hannover

    Updated: 2012-05-29 10:48:10
    “Exploring New Horizons with Gravitational Waves”: a one-day intensive workshop on testing General Relativity on Black Hole Horizons with Gravitational Waves. Albert Einstein Institute, Max Planck Institute for Gravitational Physics, Hannover and Leibniz Universität, Hannover, Germany Friday, June 8, 2012 The scientific objective of the workshop is to bring together researchers in gravitational theory, numerical relativity and relativistic [...]

  • MG13, Parallel sessions SG1 – SG2: “GR around the Earth and the Sun”, Stockholm

    Updated: 2012-05-25 11:25:44
    Parallel sessions SG1 – SG2, “GR around the Earth and the Sun” Chair: Roberto Peron – Istituto di Astrofisica e Planetologia Spaziali (IAPS-INAF), Roma, Italy Neil Ashby – Department of Physics, University of Colorado, Boulder, CO, USA; NIST Affiliate The session deals with the recent advances in testing general relativity and alternative theories of gravitation around Earth and [...]

  • V Black Holes Workshop in Lisbon

    Updated: 2012-05-24 16:13:55
    We are pleased to announce the fifth Black Holes Workshop, taking place on 17-18 December 2012 in Lisbon, Portugal. The focus of the meeting will be on gravitational physics, with special emphasis on black hole physics. From astrophysics to high-energy physics, from information theory to quantum gravity, black holes have acquired an ever increasing role in [...]

  • Physicists, start your searches: INSPIRE database now online

    Updated: 2012-05-24 16:00:27
    The next generation of the iconic SPIRES particle-physics database, called INSPIRE, is now online and operational, ready to serve scientists around the globe.

  • From Quantum to Cosmos 5 – 5th International workshop on space-based research in fundamental physics and astronomy

    Updated: 2012-05-23 11:55:56
    The purpose of the Quantum-to-Cosmos workshop series is to highlight the field of fundamental physics, astronomy, and cosmology with experiments and observations on ground and in space in order to gain improved insight into the fundamental laws of nature. The workshop offers a fruitful space to discuss current and future fundamental physics and astronomy missions [...]

  • Driving the next magnet revolution

    Updated: 2012-05-22 15:20:43
    The Department of Energy recently presented an Early Career Award to Tengming Shen, an engineer working to spur the next magnet revolution.

  • Talks now on Slideshare

    Updated: 2012-05-22 01:10:41
    I’ve uploaded a number of my more recent talks to Slideshare.  Physics, with occasionally a wee bit of speculation admixed: Thought experiments – talk done 1st April 2012 for the Ben Franklin Thinking Society.  Role of thought experiments in history, use by Galileo & by noted violinist, how they can turn into real experiments. Not [...]

  • New Hope for Space War

    Updated: 2012-05-21 17:09:16
      I’m on the Space War panel at Balticon, how & why.  Fun topic though in all candor, a bit implausible. The main problem is that travel in space is likely to be slow, expensive, & a bit dangerous.  Given this, it is likely that space travel itself will be reserved for moving stuff that [...]

  • 10 Big Idea Books

    Updated: 2012-05-21 15:18:22
    In a recent conversation Brad Denenberg of seedphilly.com was lamenting that the pressures of being in a startup had kept him from reading anything non-work related for months.  We got to talking about what a list of big idea books might be.  Herewith a list of ten of my favorites, chosen because they are Readable [...]

  • My Schedule at Balticon

    Updated: 2012-05-21 14:56:43
    Thanks to Jonette Butler for this: Quantum Mechanics, Reality and You: Why Is Quantum Mechanics Mysterious But True? Saturday at 2:00 pm in Salon A Recent experiments on the foundations, what the implications are for how we think about reality, with interaction to Science GOH Bill Phillip’s work. A Conversation with Physicist Bill Phillips Interviewers [...]

  • Big Bang Theory - Season 5 Round-Up

    Updated: 2012-05-18 15:15:36
    With the conclusion of season 5 of The Big Bang Theory, we've got our reviews of the last couple of episodes up on the site now, along with links to the science-related subjects that get mentioned in the course of the geek-related comedy....Read Full Post

  • Scientists celebrate completion of underground physics laboratory

    Updated: 2012-05-17 14:00:18
    The elevator that sinks into the Vale Creighton Mine near Sudbury, Ontario, is a gateway to two different worlds. One is Canada’s largest nickel mine, opened at the turn of the last century and still in operation. The other is SNOLAB, a large underground particle physics laboratory, the grand opening of which will take place today.

  • Gravity Research Foundation, Awards for the Essays 2012

    Updated: 2012-05-16 16:47:15
    GRAVITY RESEARCH FOUNDATION PO BOX 81389 WELLESLEY HILLS MA 02481-0004 USA Roger W. Babson, Founder George M. Rideout, Jr., President The trustees are pleased to announce the Awards for Essays for 2012. 1. $4,000 – Can Effects of Quantum Gravity Be Observed in the Cosmic Microwave Background? by Claus Kiefer and Manuel Kraemer, Institute for Theoretical Physics, University of Cologne, Zuelpicher [...]

  • Postdoc in gravitational physics at the University of Vienna

    Updated: 2012-05-16 10:59:13
    The Gravitational Physics group of the Department of Physics of University of Vienna (see http://gravity.univie.ac.at/) is seeking to fill a post-doctoral position (Universitaetsassistent/in) in the field of mathematical general relativity and/or numerical general relativity; in the latter case candidates with strong interest in rigorous aspects of numerical analysis will be sought. The appointment will be [...]

  • Researchers developing underwater neutrino experiment make oceanographic discovery

    Updated: 2012-05-15 22:45:53
    Researchers deciding where to place the planned Neutrino Mediterranean Observatory, or NEMO, were measuring water currents and temperatures when they stumbled upon unexpected patterns in the water.

  • 2012 IOP Gravitational Physics Group Thesis Prize (sponsored by CQG)

    Updated: 2012-05-14 16:24:28
    The 2012 Institute of Physics Gravitational Physics Group Thesis Prize, sponsored by Classical and Quantum Gravity (CQG), will be made for excellence in postgraduate research and communication skills in gravitational physics. All members of the IOP Gravitational Physics Group who passed their PhD viva voce exam between 30 September 2010 and 31 December 2012 are [...]

  • Vacuum Energy and Virtual Particles

    Updated: 2012-05-14 07:36:40
    Education Physics Search Physics Basic Concepts Theories Experiments Share Free Physics Newsletter Sign Up Discuss in my forum Vacuum Energy and Virtual Particles By Andrew Zimmerman Jones About.com Guide May 14, 2012 My Bio Headlines Forum RSS Follow me : on Facebook Twitter One of the weirdest facts about quantum physics is that particles are constantly springing into and out of existence all around us . Even within empty space , which seems like it should contain no energy at all , there are virtual particle pairs that manifest for a moment before annihilating each . other This means that energy is contained even in the empty vacuum of space itself , a fact which yields all sort of strange behavior . This vacuum energy may explain the dark energy that cosmologists observe , but the

  • 2012 VESF fellowships for theoretical research on Gravitational Wave Detection

    Updated: 2012-05-13 20:58:40
    2012 Call for VESF Fellowships for theoretical research on Gravitational Wave Detection The Virgo EGO Scientific Forum (VESF) is glad to announce the following call for fellowship applications to work on theoretical research relevant to the physics of the Virgo experiment. Mostly contemplated topics will be: potentially detectable gravitational wave sources, emitted waveforms, rates, data analysis [...]

  • John Miller awarded 2011 IOP Gravitational Physics Group thesis prize co-sponsored by CQG

    Updated: 2012-05-11 09:31:43
    I am delighted to announce that the 2011 IOP Gravitational Physics Group’s thesis prize, co-sponsored by Classical and Quantum Gravity, has been awarded to Dr John Miller, currently at Australian National University (ANU), for his excellent work on non-Gaussian beams and optomechanical parametric instabilities in gravitational wave detectors and their impact on designing future gravitational [...]

  • New accelerator to study steps on the path to fusion

    Updated: 2012-05-09 15:30:27
    Berkeley Lab scientists and engineers announced in a press release today that they have completed a machine tailor-made to examine an approach to fusion power.

  • Fermilab scientists revise plans for construction of new accelerator project

    Updated: 2012-05-07 22:16:21
    With their eyes on the tight federal budget, scientists plan to divide Project X, the accelerator project that will power Fermilab's future experiments, into phases in order to lessen the initial costs.

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