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  • superfluid helium
  • quantum money
  • Enrico Fermi and Richard Garwin
Your search has returned 2302 articles:
  • News

    Superfluid helium behaves like black holes

    NEW ORLEANS — Black holes and superfluids make for strange bedfellows: One is famous for being so dense that light can’t escape, and the other is a bizarre liquid that flows without friction. But new computer simulations confirm that superfluid helium follows an unusual rule known from black holes — one with mysterious significance for physics.

    Scientists demonstrated that entropy, a...

    03/16/2017 - 11:13 Physics, Condensed Matter
  • News

    Quantum counterfeiters might succeed

    Scientists have created an ultrasecure form of money using quantum mechanics — and immediately demonstrated a potential security loophole.

    Under ideal conditions, quantum currency is impossible to counterfeit. But thanks to the messiness of reality, a forger with access to sophisticated equipment could skirt that quantum security if banks don’t take appropriate precautions, scientists...

    03/13/2017 - 07:00 Quantum Physics
  • Reviews & Previews

    Physics greats of the 20th century mixed science and public service

    The 20th century will go down in history — it pretty much already has — as the century of the physicist. Physicists’ revolutionizing of the scientific world view with relativity and quantum mechanics might have been enough to warrant that conclusion. Future historians may emphasize even more, though, the role of physicists in war and government. Two such physicists, one born at the century’s...

    02/23/2017 - 06:00 History of Science, Science & Society, Physics
  • Letters to the Editor

    Readers amazed by Amasia

    Saved by the Bell

    Physicists used light from stars to perform a cosmic Bell test, which verified that quantum particles were indeed “spooky,” Emily Conover reported in “Quantum effect passes space test” (SN: 1/21/17, p. 12).

    Reader George Mitchell took issue with Conover’s description of entangled photons before they are measured as having multiple polarizations at once. “We don’t know...

    02/22/2017 - 12:43 Quantum Physics, Earth, Technology
  • News in Brief

    Smashing gold ions creates most swirly fluid ever

    High-energy ion collisions have produced the swirliest fluid ever discovered, in a state of matter that mimics the early universe.

    To create the überwhirly liquid, scientists slammed gold ions together at velocities approaching the speed of light at Brookhaven National Laboratory in Upton, N.Y. Such collisions, performed in Brookhaven’s Relativistic Heavy Ion Collider, cook up an...

    02/08/2017 - 12:00 Physics
  • News

    Chemists strike gold, solve mystery about precious metal’s properties

    Gold’s glimmer is not the only reason the element is so captivating. For decades, scientists have puzzled over why theoretical predictions of gold’s properties don’t match up with experiments. Now, highly detailed calculations have erased the discrepancy, according to a paper published in the Jan. 13 Physical Review Letters.

    At issue was the energy required to remove an electron from a...

    01/23/2017 - 07:00 Physics, Chemistry
  • January 21, 2017

    01/11/2017 - 12:17
  • Feature

    What’s ahead for science in 2017?

    View the video

    As science journalists look back on the top stories of the year, scientists push on, asking the next questions and chasing fresh data. What big discoveries might they deliver in 2017? Science News writers reveal what they are watching for — and hoping for — in the year ahead. 

    Bruce BowerBehavioral Sciences

    “I look forward to seeing where the reproducibility debate...

    12/20/2016 - 09:00 Science & Society
  • Letters to the Editor

    Readers contemplate corals and more

    Corals in crisis

    Algae that provide nutrients to corals turn toxic and lead the corals to “bleach” and sometimes die when ocean temperatures spike. Researchers are seeding damaged reefs with baby corals and breeding heat-tolerant corals to help these imperiled marine animals, Amy McDermott reported in “Rebuilding reefs” (SN: 10/29/16, p. 18).

    Ronald Swager wondered if researchers could...

    12/14/2016 - 06:00 Oceans, Genetics, Archaeology
  • News

    Vacuum’s quantum effect on light detected

    Observations of the dense remnant of an exploded star have provided the first sign of a quantum effect on light passing through empty space.

    Light from the stellar remnant, a neutron star located about 400 light-years away, is polarized, meaning that its electromagnetic waves are oriented preferentially in a particular direction like light that reflects off the surface of water (SN: 7/8/...

    12/09/2016 - 08:00 Quantum Physics, Astronomy