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Universe Astronomical Instrument
Galaxy Milky Way, Andromeda
Planetary System Star, Brown Dwarf, Planet, Moon

Solar System Sun
Terrestrial Planet Mercury, Venus, Earth (Moon), Mars
Asteroid Belt Ceres, Vesta
Jovian Planet Jupiter, Saturn, Uranus, Neptune
Trans-Neptunian Object
Kuiper Belt Pluto, Haumea, Makemake
Scattered Disc Eris, Sedna, Planet X
Oort Cloud Etc. Scholz’s Star
Small Body Comet, Centaur, Asteroid

“Fundamentals”
Physical Laws (Constants) Relativity
Matter Molecule, Atom (Periodic Table), Particle
Force Gravity, Electromagnetism (Light, Color)

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These are organized by a classification scheme developed exclusively for Cosma. More…

General

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Physics Central: Physics in Action (American Physical Society)
Physical Sciences Subject Guide (Library of Congress)
Introductory Physics Science Tracer Bullet (Library of Congress)
Physics Resources (Library of Congress)
Physics Internet Resources (Library of Congress)

Physical Science Subject Primer (National Network of Libraries of Medicine)
Physics Subject Primer (National Network of Libraries of Medicine)

Physics World
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Physics Center (Martindale’s Reference Desk)
Physics Databases & Periodic Tables (Martindale’s Reference Desk)
CRC Handbook of Chemistry and Physics Online (99th Edition)

Natural and Physical Sciences Portal (Wikipedia)
Physical Sciences Portal (Wikipedia)
Physics Portal (Wikipedia)

Dictionary

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)
Encyclopædia Britannica

Outline

Outline of Physical Science (Wikipedia)
Outline of Physics (Wikipedia)

Search

Physics (Wolfram Alpha)

Philosophy

Philosophical research online: Philosophy of Physical Science (PhilPapers)

Science

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

Encyclopædia Britannica

Physics Center (Martindale’s Reference Desk)
Encyclopedia of Physics

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SciShow Physics (YouTube Channel)

Center for History of Physics (American Institute of Physics)
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Crash Course Kids (YouTube Channel)

The Cheerios effect (TED Ed)
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Crash Course Physics (YouTube Channel)

How Things Work: An Introduction to Physics (Coursera)
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Einstein, Oppenheimer, Feynman: Physics in the 20th Century (MIT Opencourseware)
OER Commons: Open Educational Resources

Community

Occupation

Careers in Physical Sciences (Physics World)
Careers in Physics (Physics.org)
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Organization

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AAAS EurekaAlert, Nature
Phys.org, Physics World
Science News, Science Daily

Book

ISBNdb

Expression

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Humor

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.

  • An antibody-drug combo to combat cancer
    on April 16, 2021 at 4:00 am

    (Tokyo Medical and Dental University) Researchers at Tokyo Medical and Dental University (TMDU) have developed an ingenious therapeutic strategy against chronic myelomonocytic leukemia that links a cytotoxic drug payload to an antibody vector that targets the CD64 marker highly expressed by monocytes and monocytic progenitors. This selective antibody-drug conjugate spares other blood cell lineages thus avoiding the side-effects of conventional anti-cancer drugs such as anemia, infection or […]

  • Experiments cast doubts on the existence of...
    on April 16, 2021 at 4:00 am

    (Universitaet Stuttgart) A quantum spin liquid is a state of matter in which interacting quantum spins do not align even at lowest temperatures, but remain disordered. Research on this state has been going on for almost 50 years, but whether it really exists has never been proven beyond doubt. An international team led by physicist Prof. Martin Dressel at the University of Stuttgart has now put an end to the dream of a quantum spin liquid for the time being. Nevertheless, the matter remains […]

  • New tech builds ultralow-loss integrated photonic...
    on April 16, 2021 at 4:00 am

    (Ecole Polytechnique Fédérale de Lausanne) EPFL scientists have developed ultralow-loss silicon nitride integrated circuits that are central for many photonic devices, such as chip-scale frequency combs, narrow-linewidth lasers, coherent LiDAR, and neuromorphic computing.

  • Scientists may detect signs of extraterrestrial...
    on April 16, 2021 at 4:00 am

    (American Physical Society) Research shows that a new telescope could detect a potential signature of life on other planets in as little as 60 hours.

  • Triangular-shaped spikes key to coronavirus...
    on April 16, 2021 at 4:00 am

    (Okinawa Institute of Science and Technology (OIST) Graduate University) Scientists have modeled the spikes of the coronavirus particle to unravel how their shape and number may influence the transmissibility of the virus.

  • New nanoscale device for spin technology
    on April 16, 2021 at 4:00 am

    (Aalto University) Spin waves could unlock the next generation of computer technology, a new component allows physicists to control them.

  • New CRISPR technology offers unrivaled control of...
    on April 16, 2021 at 4:00 am

    (University of California - San Francisco) Scientists have figured out how to modify CRISPR's basic architecture to extend its reach beyond the genome and into what's known as the epigenome -- proteins and small molecules that latch onto DNA and control when and where genes are switched on or off.

  • Scientists report remarkable enhancement of...
    on April 16, 2021 at 4:00 am

    (Chinese Academy of Sciences Headquarters) A study led by scientists at the Institute of Modern Physics (IMP) has reported the observation of 214U, a new uranium (U) isotope, and has revealed for the first time the abnormal enhancement of α-particle clustering in uranium isotopes.

  • On the pulse of pulsars and polar light
    on April 16, 2021 at 4:00 am

    (American Physical Society) Faced with the tragic loss of the Arecibo observatory in Puerto Rico and the often prohibitive cost of satellite missions, astronomers are searching for savvy alternatives to continue answering fundamental questions in physics.

  • How tangled proteins kill brain cells, promote...
    on April 16, 2021 at 4:00 am

    (University of Colorado at Boulder) More than 70% of neurological diseases, including Alzheimer's disease and the concussion-related disorder CTE, are believed to be fueled by protein clusters called tau aggregates. A new study sheds light on how they damage brain cells and could ultimately lead to new therapies for such "tauopathies."


Physics News - Physics News, Material Sciences, Science News, Physics The latest news in physics, materials science, quantum physics, optics and photonics, superconductivity science and technology. Updated Daily.

  • Experiments cast doubts on the existence of...
    on April 16, 2021 at 2:50 pm

    A quantum spin liquid is a state of matter in which interacting quantum spins do not align even at lowest temperatures, but remain disordered. Research on this state has been going on for almost 50 years, but whether it really exists has never been proven beyond doubt. An international team led by physicist Prof. Martin Dressel at the University of Stuttgart has now put an end to the dream of a quantum spin liquid for the time being. Nevertheless, the matter remains exciting.

  • Study sheds light on stellar origin of iron...
    on April 16, 2021 at 2:45 pm

    Researchers from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences and their collaborators have recently made great progress in the study of the stellar beta-decay rate of 59Fe, which constitutes an important step towards understanding 60Fe nucleosynthesis in massive stars. The results were published in Physical Review Letters on April 12.

  • Scientists create mechanism to precisely control...
    on April 16, 2021 at 2:43 pm

    University of Oregon physicists have developed a new method to manipulate sound—stop it, reverse it, store it and even use it later—in synthetic composite structures known as metamaterials.

  • Scientists reject restrictive heat flux models...
    on April 16, 2021 at 12:46 pm

    A team of scientists has conducted an analysis of directly driven gold sphere experiments to test heat transport models used in inertial confinement fusion (ICF) and high energy density (HED) modeling. It was found that overly restricting the heat flux caused disagreement with measurement.

  • New tech builds ultralow-loss integrated photonic...
    on April 16, 2021 at 12:41 pm

    Encoding information into light, and transmitting it through optical fibers lies at the core of optical communications. With an incredibly low loss of 0.2 dB/km, optical fibers made from silica have laid the foundations of today's global telecommunication networks and our information society.

  • Engineers improve performance of high-temperature...
    on April 15, 2021 at 7:31 pm

    Florida State University researchers have discovered a novel way to improve the performance of electrical wires used as high-temperature superconductors (HTS), findings that have the potential to power a new generation of particle accelerators.

  • Researchers establish the first...
    on April 15, 2021 at 6:00 pm

    A team of researchers from QuTech in the Netherlands reports realization of the first multi-node quantum network, connecting three quantum processors. In addition, they achieved a proof-of-principle demonstration of key quantum network protocols. Their findings mark an important milestone toward the future quantum internet and have now been published in Science.

  • Physicists develop theoretical model for neural...
    on April 15, 2021 at 4:57 pm

    The dynamics of the neural activity of a mouse brain behave in a peculiar, unexpected way that can be theoretically modeled without any fine tuning, suggests a new paper by physicists at Emory University. Physical Review Letters published the research, which adds to the evidence that theoretical physics frameworks may aid in the understanding of large-scale brain activity.

  • Uncovering the secrets of some of the world's...
    on April 15, 2021 at 1:38 pm

    EPFL researchers have shed new light on one of the earliest color photography techniques, G. Lippmann's Nobel Prize–winning multispectral imaging method.

  • Using sound waves to make patterns that never...
    on April 14, 2021 at 5:48 pm

    Mathematicians and engineers at the University of Utah have teamed up to show how ultrasound waves can organize carbon particles in water into a sort of pattern that never repeats. The results, they say, could result in materials called "quasicrystals" with custom magnetic or electrical properties.


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.

  • Two-fold symmetric superconductivity in few-layer...
    by Alex Hamill on April 15, 2021 at 12:00 am

    Nature Physics, Published online: 15 April 2021; doi:10.1038/s41567-021-01219-xA two-fold rotational symmetry is observed in the superconducting state of NbSe2. This is strikingly different from the three-fold symmetry of the lattice, and suggests that a mixed conventional and unconventional order parameter exists in this material.

  • One-dimensional Kronig–Penney superlattices at...
    by Megan Briggeman on April 15, 2021 at 12:00 am

    Nature Physics, Published online: 15 April 2021; doi:10.1038/s41567-021-01217-zThe two-dimensional electron gas at an oxide interface is patterned to form a channel with a periodic potential imposed on top. This replicates the textbook Kronig–Penney model and leads to fractionalization of electron bands in the channel.

  • Unusual high-field metal in a Kondo insulator
    by Ziji Xiang on April 12, 2021 at 12:00 am

    Nature Physics, Published online: 12 April 2021; doi:10.1038/s41567-021-01216-0Transport and thermodynamic measurements on strongly correlated Kondo metal YbB12 reveal the coexistence of charged and charge-neutral fermions in the material and the crucial role played by the latter in the quantum oscillations of resistivity.

  • Embryonic tissues as active foams
    by Sangwoo Kim on April 12, 2021 at 12:00 am

    Nature Physics, Published online: 12 April 2021; doi:10.1038/s41567-021-01215-1A computational framework draws analogy with foams to offer a comprehensive picture of how cell behaviours influence fluidization in embryonic tissues, highlighting the role of tension fluctuations in regulating tissue rigidity.

  • Measurement of the proton spin structure at long...
    by X. Zheng on April 12, 2021 at 12:00 am

    Nature Physics, Published online: 12 April 2021; doi:10.1038/s41567-021-01198-zMeasurements of the proton’s spin structure in experiments scattering a polarized electron beam off polarized protons in regions of low momentum transfer squared test predictions from chiral effective field theory of the strong interaction.

  • Selective prosecution of scientists must stop
    on April 9, 2021 at 12:00 am

    Nature Physics, Published online: 09 April 2021; doi:10.1038/s41567-021-01231-1The US Department of Justice’s ‘China Initiative’ is unfairly targeting Chinese American academics for their alleged ties with the Chinese government. A more proportionate approach is urgently needed.

  • Nerve rays on the brain
    by Abigail Klopper on April 9, 2021 at 12:00 am

    Nature Physics, Published online: 09 April 2021; doi:10.1038/s41567-021-01228-wNerve rays on the brain

  • A signal from the ice
    by Stefanie Reichert on April 9, 2021 at 12:00 am

    Nature Physics, Published online: 09 April 2021; doi:10.1038/s41567-021-01227-xA signal from the ice


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

  • Simulations reveal how dominant SARS-CoV-2 strain...
    on April 16, 2021 at 11:49 pm

    The dominant G-form spike protein 'puts its head up' more frequently to latch on to receptors, but that makes it more vulnerable to neutralization.

  • Wearable sensors that detect gas leaks
    on April 16, 2021 at 7:50 pm

    A research team has developed wearable gas sensors that display an instantaneous visual holographic alarm.

  • The future of particle accelerators is here
    on April 16, 2021 at 7:50 pm

    A new accelerator and detector will serve as a kind of camera, taking 3D images and movies of electrons colliding with polarized protons and ions. Like a CT scanner for atoms, the EIC will let scientists see how force-carrying gluon particles hold together quarks, the internal components of protons and neutrons. It will also offer insights into the spin of fundamental particles. Cutting-edge accelerators could collide with both energy consumption and our assumptions about the nature of matter.

  • New CRISPR technology offers unrivaled control of...
    on April 16, 2021 at 5:19 pm

    Scientists have figured out how to modify CRISPR's basic architecture to extend its reach beyond the genome and into what's known as the epigenome -- proteins and small molecules that latch onto DNA and control when and where genes are switched on or off.

  • Sunlight to solve the world's clean water crisis
    on April 16, 2021 at 4:01 pm

    Researchers have developed technology that could eliminate water stress for millions of people, including those living in many of the planet's most vulnerable and disadvantaged communities.

  • Thermoelectric material discovery sets stage for...
    on April 16, 2021 at 4:00 pm

    Researchers have created a new and potentially paradigm-shifting high-performance thermoelectric compound. The team created a new hybrid compound in which the crystalline and amorphous sublattices are intertwined into a one-of-a-kind crystal-amorphic duality.

  • Experiments cast doubts on the existence of...
    on April 16, 2021 at 4:00 pm

    A quantum spin liquid is a state of matter in which interacting quantum spins do not align even at lowest temperatures, but remain disordered. Research on this state has been going on for almost 50 years, but whether it really exists has never been proven beyond doubt. An international team has now put an end to the dream of a quantum spin liquid for the time being. Nevertheless, the matter remains exciting.

  • Triangular-shaped spikes key to coronavirus...
    on April 16, 2021 at 1:10 pm

    Scientists have modeled the spikes of the coronavirus particle to unravel how their shape and number may influence the transmissibility of the virus.

  • New nanoscale device for spin technology
    on April 16, 2021 at 1:10 pm

    Spin waves could unlock the next generation of computer technology, a new component allows physicists to control them.

  • Engineers improve performance of high-temperature...
    on April 15, 2021 at 9:07 pm

    Researchers have discovered a novel way to improve the performance of electrical wires used as high-temperature superconductors (HTS), findings that have the potential to power a new generation of particle accelerators.