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Physics Central: Physics in Action (American Physical Society)
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Physical : (a) of or relating to physics (b) characterized or produced by the forces and operations of physics (c) having material existence : perceptible especially through the senses and subject to the laws of nature — Webster

OneLook, Free Dictionary, Wiktionary, Urban Dictionary

Realm : kingdom, sphere, domain — Webster

OneLook, Free Dictionary, Wiktionary, Urban Dictionary

Physical Realm : kingdom, sphere, or domain of things that have material existence and are perceptible, especially those things perceptible through the senses and subject to the laws of nature — M.E.Hopper

Encyclopedia

Physical universe In religion and esotericism, the term “physical universe” or “material universe” is used to distinguish the physical matter of the universe from a proposed spiritual or supernatural essence. — Wikipedia

Eric Weisstein’s World of Physics (ScienceWorld, Wolfram Research)
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Physical science is a branch of natural science that studies non-living systems, in contrast to life science. It in turn has many branches, each referred to as a “physical science”, together called the “physical sciences”. However, the term physical creates an unintended, somewhat arbitrary distinction, since many branches of physical science also study biological phenomena and branches of chemistry, such as organic chemistry. — Wikipedia

Encyclopædia Britannica

Physics is the natural science that studies matter and its motion and behavior through space and time and that studies the related entities of energy and force. Physics is one of the most fundamental scientific disciplines, and its main goal is to understand how the universe behaves. — Wikipedia

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What if?

What If? Answering your hypothetical questions with physics, every Tuesday.

  • Earth-Moon Fire Pole
    by xkcd on May 21, 2018 at 12:00 am

    <article class="entry"> <a href="//what-if.xkcd.com/157/"><h1>Earth-Moon Fire Pole</h1></a> <p id="question">My son (5y) asked me today: If there were a kind of a fireman&#39;s pole from the Moon down to the Earth, how long would it take to slide all the way from the Moon to the Earth?</p> <p id="attribute">Ramon Schönborn, Germany</p> <p>First, let&#39;s get a few things out of the […]

  • Electrofishing for Whales
    by xkcd on March 9, 2017 at 12:00 am

    <article class="entry"> <a href="//what-if.xkcd.com/156/"><h1>Electrofishing for Whales</h1></a> <p id="question">I used to work on a fisheries crew where we would use an electro-fisher backpack to momentarily stun small fish (30 - 100 mm length) so we could scoop them up with nets to identify and measure them. The larger fish tended to be stunned for slightly longer because of their larger surface area but I don&#39;t […]

  • Toaster vs. Freezer
    by xkcd on February 28, 2017 at 12:00 am

    <article class="entry"> <a href="//what-if.xkcd.com/155/"><h1>Toaster vs. Freezer</h1></a> <p id="question">Would a toaster still work in a freezer?</p> <p id="attribute">—<a href="http://www.maximumfun.org/shows/my-brother-my-brother-and-me">My Brother, My Brother and Me</a>, <a […]

  • Coast-to-Coast Coasting
    by xkcd on February 8, 2017 at 12:00 am

    <article class="entry"> <a href="//what-if.xkcd.com/154/"><h1>Coast-to-Coast Coasting</h1></a> <p id="question">What if the entire continental US was on a decreasing slope from West to East. How steep would the slope have to be to sustain the momentum needed to ride a bicycle the entire distance without pedaling?</p> <p id="attribute">—Brandon Rooks</p> <p>Too steep to actually build, […]

  • Hide the Atmosphere
    by xkcd on January 30, 2016 at 12:00 am

    <article class="entry"> <a href="//what-if.xkcd.com/153/"><h1>Hide the Atmosphere</h1></a> <p id="question">Earth’s atmosphere is really thin compared to the radius of the Earth. How big a hole do I need to dig before people suffocate?</p> <p id="attribute">—Sam Burke</p> <p>The idea here is straightforward: When you dig a hole in the ground, the hole fills up with air.<span […]

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EurekAlert! - Chemistry, Physics and Materials Sciences The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.

  • Rice U. study sheds light on -- and through -- 2D...
    on September 24, 2018 at 4:00 am

    (Rice University) Rice University scientists use a computational method to calculate the optical properties of two-dimensional materials. Their work promises to simplify the process of identifying the right materials for next-generation optoelectronic devices. […]

  • A new way to count qubits
    on September 24, 2018 at 4:00 am

    (Syracuse University) Researchers at Syracuse University, working with collaborators at the University of Wisconsin (UW)-Madison, have developed a new technique for measuring the state of quantum bits, or qubits, in a quantum computer. […]

  • Breakthrough in blending metals
    on September 24, 2018 at 4:00 am

    (Tokyo Institute of Technology) Researchers in Japan have found a way to create innovative materials by blending metals with precision control. Their approach, based on a concept called atom hybridization, opens up an unexplored area of chemistry that could lead to the development of advanced functional materials. […]

  • Illinois team finds Wigner crystal -- not Mott...
    on September 24, 2018 at 4:00 am

    (University of Illinois College of Engineering) Recently, scientists at MIT created a stir in the field of condensed matter physics when they showed that two sheets of graphene twisted at specific angles display two emergent phases of matter. Philip Phillips, professor of Condensed Matter Physics at the University of Illinois, says a careful review of the MIT experimental data revealed that the insulating behavior of the "magic-angle" graphene is not Mott insulation, but something even more […]

  • Dosimetry and toxicity studies of a sulfonamide...
    on September 24, 2018 at 4:00 am

    (Bentham Science Publishers) The SR101 N-(3-[18F]Fluoropropyl) sulfonamide ([18F]SRF101) is a Sulforhodamine 101 derivative that was previously synthesised by our group. The fluorescent dye SR101 has been reported as a marker of astroglia in the neocortex of rodents in vivo. The aim of this study was to perform a toxicological evaluation of [18F]SRF101 and to estimate human radiation dosimetry based on preclinical studies. […]

  • Smaller, faster and more efficient modulator sets...
    on September 24, 2018 at 4:00 am

    (City University of Hong Kong) A research team comprising members from City University of Hong Kong (CityU), Harvard University and renowned information technologies laboratory has successfully fabricated a tiny on-chip lithium niobate modulator, an essential component for the optoelectronic industry. The modulator is smaller, more efficient with faster data transmission and costs less than traditional ones. The technology is set to revolutionise the industry. […]

  • Four extremely young asteroid families identified
    on September 24, 2018 at 4:00 am

    (Fundação de Amparo à Pesquisa do Estado de São Paulo) Brazilian researchers dated the families using a numerical simulation method to process current data to go back in time to the asteroid formation era. […]

  • Berkeley Lab to build an advanced quantum...
    on September 24, 2018 at 4:00 am

    (DOE/Lawrence Berkeley National Laboratory) Lawrence Berkeley National Laboratory (Berkeley Lab) will receive $30 million over five years from the U.S. Department of Energy to build and operate an Advanced Quantum Testbed (AQT). AQT will operate as an open resource for the community, allowing external researchers to explore superconducting quantum processors and evaluate how these emerging quantum devices can advance scientific research and guide future development of commercial products. […]

  • North Korea's 2017 bomb test set off later...
    on September 24, 2018 at 4:00 am

    (The Earth Institute at Columbia University) Using newly refined analysis methods, scientists have discovered that a North Korean nuclear bomb test last fall set off aftershocks over a period of eight months. The shocks, which occurred on a previously unmapped nearby fault, are a window into both the physics of nuclear explosions, and how natural earthquakes can be triggered. […]

  • Guiding light
    on September 24, 2018 at 4:00 am

    (University of California - Santa Barbara) Where would modern life be without the internet as we know it? When the technology became mainstream in the 1990s, demand for high-speed data transmission exploded, and that need was filled with light -- unrivaled for its speed and data capacity. By the end of the 20th century, fiber optic cables and other optical infrastructure had been established around the globe, enabling speed-of-light communications and commerce. Light remains the medium of […]


Physics News - Physics News, Material Sciences, Science News, Physics Physorg.com provides the latest news on physics, materials, nanotech, science and technology. Updated Daily.

  • A new way to count qubits
    on September 24, 2018 at 3:50 pm

    Researchers at Syracuse University, working with collaborators at the University of Wisconsin (UW)-Madison, have developed a new technique for measuring the state of quantum bits, or qubits, in a quantum computer. […]

  • Smaller, faster and more efficient modulator sets...
    on September 24, 2018 at 3:00 pm

    A research team comprising members from City University of Hong Kong (CityU), Harvard University and a renowned information technologies laboratory has successfully fabricated a tiny on-chip lithium niobate modulator, an essential component for the optoelectronic industry. The modulator is smaller, more efficient with faster data transmission, and costs less. The technology is set to revolutionise the industry. […]

  • Explainer: The US push to boost 'quantum...
    on September 24, 2018 at 2:17 pm

    A race by U.S. tech companies to build a new generation of powerful "quantum computers" could get a $1.3 billion boost from Congress, fueled in part by lawmakers' fear of growing competition from China. […]

  • Newly discovered magnetic state could lead to...
    on September 24, 2018 at 12:29 pm

    Magnetic skyrmions are magnetic swirls that may lead to new solutions combining low-energy consumption with high-speed computational power and high-density data storage, revolutionizing information technology. A team from Delft University of Technology, in collaboration with the University of Groningen and Hiroshima University, has discovered a new, unexpected magnetic state, which is related to these skyrmions. The findings open up new ways to create and manipulate complex magnetic structures […]

  • Researchers control the drying patterns formed...
    on September 24, 2018 at 11:50 am

    Researchers from Tokyo Metropolitan University have discovered a new way of controlling the drying patterns formed by re-crystallizing salt. They found that the coffee ring effect can be used to pin the edge of drying droplets, creating a range of geometric patterns. The same principles may be applied to understand and improve the adhesion of printer ink to surfaces and the manufacture of film-based devices. […]

  • On-demand room-temperature single photon...
    on September 21, 2018 at 12:47 pm

    Physicists at The City College of New York have used atomically thin two-dimensional materials to realize an array of quantum emitters operating at room temperature that can be integrated into next generation quantum communication systems. […]

  • Perovskite semiconductors seeing right through...
    on September 21, 2018 at 12:26 pm

    From observing celestial objects to medical imaging, the sensitive detection of X-rays plays a central role in countless applications. However, the methods used to detect them have undergone an interesting evolution of their own. […]

  • New observations to understand the phase...
    on September 21, 2018 at 10:52 am

    The building blocks of matter in our universe were formed in the first 10 microseconds of its existence, according to the currently accepted scientific picture. After the Big Bang about 13.7 billion years ago, matter consisted mainly of quarks and gluons, two types of elementary particles whose interactions are governed by quantum chromodynamics (QCD), the theory of strong interaction. In the early universe, these particles moved nearly freely in a quark-gluon plasma. Then, in a phase […]

  • Neutrons produce first direct 3-D maps of water...
    on September 21, 2018 at 6:33 am

    New 3-D maps of water distribution during cellular membrane fusion are accelerating scientific understanding of cell development, which could lead to new treatments for diseases associated with cell fusion. Using neutron diffraction at the Department of Energy's Oak Ridge National Laboratory, researchers have made the first direct observations of water in lipid bilayers used to model cell membrane fusion. […]

  • Researchers determine absolute duration of...
    on September 20, 2018 at 12:30 pm

    The photoelectric effect provides the basis for solar energy and global communications; Albert Einstein described it over a century ago. For the first time, scientists from the Technical University of Munich (TUM), the Max-Planck Institute of Quantum Optics (MPQ), and the TU Wien have now measured the absolute duration of the light absorption and of the resulting photoelectron released from a solid body. […]


Nature Physics - Issue - nature.com science feeds Nature Physics offers a unique mix of news and reviews alongside top-quality research papers. Published monthly, in print and online, the journal reflects the entire spectrum of physics, pure and applied.

  • Wetting by living tissues
    by Richard G. Morris on September 24, 2018 at 12:00 am

    Wetting by living tissuesWetting by living tissues, Published online: 24 September 2018; doi:10.1038/s41567-018-0316-4An active counterpart to passive wetting is an encouraging sign for tissue physics and, more egenerally, the interface between biology and physics. […]

  • Polygonal motion and adaptable phototaxis via...
    by Alan C. H. Tsang on September 24, 2018 at 12:00 am

    Polygonal motion and adaptable phototaxis via flagellar beat switching in the microswimmer Euglena gracilisPolygonal motion and adaptable phototaxis via flagellar beat switching in the microswimmer <i>Euglena gracilis</i>, Published online: 24 September 2018; doi:10.1038/s41567-018-0277-7A single-celled organism exhibits complex swimming behaviours in response to changes in light intensity. Modelling and experiments suggest that the swimmer exploits phase relations between its […]

  • Peculiar polygonal paths
    by Nicolas Waisbord on September 24, 2018 at 12:00 am

    Peculiar polygonal pathsPeculiar polygonal paths, Published online: 24 September 2018; doi:10.1038/s41567-018-0320-8Many microorganisms use light-sensitive receptors to migrate. A case in point is the microalga Euglena gracilis, which avoids light intensity increases by swimming in polygonal trajectories — providing an elegant solution to navigational challenges. […]

  • Multiple topological states in iron-based...
    by Peng Zhang on September 24, 2018 at 12:00 am

    Multiple topological states in iron-based superconductorsMultiple topological states in iron-based superconductors, Published online: 24 September 2018; doi:10.1038/s41567-018-0280-zMultiple different types of topological states are observed in iron-based high-temperature superconductors. This suggests that these may be a good place to try and engineer high-temperature topological superconductivity. […]

  • Active wetting of epithelial tissues
    by Carlos Pérez-González on September 24, 2018 at 12:00 am

    Active wetting of epithelial tissuesActive wetting of epithelial tissues, Published online: 24 September 2018; doi:10.1038/s41567-018-0279-5An analogy with wetting has proven apt for describing how groups of cells spread on a substrate. But cells are active: they polarize, generate forces and adhere to their surroundings. Experiments now find agreement with an active update to the theory. […]

  • Phase transition lowering in dynamically...
    by E. E. McBride on September 24, 2018 at 12:00 am

    Phase transition lowering in dynamically compressed siliconPhase transition lowering in dynamically compressed silicon, Published online: 24 September 2018; doi:10.1038/s41567-018-0290-xIn spite of its wide technological use, the response of silicon to rapid compression remains poorly understood. By means of an X-ray diffraction method based on a free-electron laser, the process for laser-driven dynamic shock compression is now elucidated in this system. […]

  • Author Correction: Higher-order topology in...
    by Frank Schindler on September 19, 2018 at 12:00 am

    Author Correction: Higher-order topology in bismuthAuthor Correction: Higher-order topology in bismuth, Published online: 19 September 2018; doi:10.1038/s41567-018-0308-4Author Correction: Higher-order topology in bismut […]

  • An inconsistent friend
    by Matthew F. Pusey on September 18, 2018 at 12:00 am

    An inconsistent friendAn inconsistent friend, Published online: 18 September 2018; doi:10.1038/s41567-018-0293-7Are there limits to the applicability of textbook quantum theory? Experiments haven’t found any yet, but a new theoretical analysis shows that treating your colleagues as quantum systems might be a step too far. […]


physicsworld.com: news Latest news from physicsworld.com



    Matter & Energy News -- ScienceDaily Detectors and electronics. Learn about every sort of detector, radar system and more from leading research institutes around the world.

    • New earthquake risk model could better inform...
      on September 24, 2018 at 9:45 pm

      Researchers have developed a new way to model seismic risk, which they hope will better inform disaster risk reduction planning in earthquake-prone areas. […]

    • Wigner crystal -- not Mott insulator -- in...
      on September 24, 2018 at 9:44 pm

      Recently, scientists created a stir in the field of condensed matter physics when they showed that two sheets of graphene twisted at specific angles display two emergent phases of matter. After a careful review of the experimental data researchers say that the insulating behavior of the ''magic-angle'' graphene is not Mott insulation, but something even more profound -- a Wigner crystal. […]

    • Crowd counting through walls with WiFi
      on September 24, 2018 at 7:34 pm

      Researchers have given the first demonstration of crowd counting through walls using only everyday communication signals such as WiFi. The technique, which requires only a wireless transmitter and receiver outside the area of interest, could have a variety of applications, including smart energy management, retail business planning and security. […]

    • How will climate change stress the power grid?...
      on September 24, 2018 at 6:40 pm

      A new study suggests the power industry is underestimating how climate change could affect the long-term demand for electricity in the United States. The research describes the limitations of prediction models used by electricity providers and regulators for medium- and long-term energy forecasting. It outlines a new model that includes key climate predictors that researchers say present a more accurate view of how climate change will alter future electricity demands. […]

    • Shedding light on -- and through -- 2D materials
      on September 24, 2018 at 4:39 pm

      Scientists use a computational method to calculate the optical properties of two-dimensional materials. Their work promises to simplify the process of identifying the right materials for next-generation optoelectronic devices. […]

    • Quantum computing: A new way to count qubits
      on September 24, 2018 at 3:59 pm

      Researchers have developed a new technique for measuring the state of quantum bits, or qubits, in a quantum computer. […]

    • Smaller, faster and more efficient modulator sets...
      on September 24, 2018 at 3:27 pm

      A research team has successfully fabricated a tiny on-chip lithium niobate modulator, an essential component for the optoelectronic industry. The modulator is smaller, more efficient with faster data transmission and costs less than traditional ones. […]

    • Technology and therapy help individuals with...
      on September 24, 2018 at 3:27 pm

      Of four research participants living with traumatic, motor complete spinal cord injury, two are able to walk over ground with epidural stimulation following epidural stimulation paired with daily locomotor training. In addition, all four participants achieved independent standing and trunk stability when using the stimulation and maintaining their mental focus. […]

    • Ready-to-use recipe for turning plant waste into...
      on September 24, 2018 at 3:04 pm

      Bioscience engineers already knew how to make gasoline in the laboratory from plant waste such as sawdust. Now researchers have developed a roadmap, as it were, for industrial cellulose gasoline. […]

    • Breakthrough in blending metals
      on September 24, 2018 at 1:16 pm

      Researchers have found a way to create innovative materials by blending metals with precision control. Their approach, based on a concept called atom hybridization, opens up an unexplored area of chemistry that could lead to the development of advanced functional materials. […]