Physics

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We summarize the week's scientific breakthroughs every Thursday.

  1. Genetics

    Feedback

    Readers ask about Neandertal genes and electricity-generating spores and react to a fusion milestone.

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  2. Quantum Physics

    U.S. marches to tick of new clock

    The atomic clock NIST-F2 has launched as the country’s official civilian time and frequency standard.

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  3. Materials Science

    Oyster shells could inspire improved armor

    Making tiny indentations in windowpane oyster shells has revealed some processes that could inspire better armor.

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  4. Materials Science

    Light filter lets rays through from only one direction

    Angle-sensitive light filter could improve photography, telescopes and solar energy harvesting.

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  5. Materials Science

    Pearl coating inspires tougher ceramics

    A material called mother of pearl, or nacre, has inspired the design of more durable, less brittle ceramics.

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  6. Physics

    A tractor beam reels in objects with sound

    A tractor beam of focused sound waves has pulled on an object as large as a Toblerone chocolate bar.

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  7. Materials Science

    World’s thinnest material stretches, bends, twists

    Graphene, the thinnest known material at one carbon atom thick, can be manipulated under the microscope using tricks from a variety of paper-cutting origami called kirigami.

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  8. Chemistry

    Milk protein a potential flame retardant

    Protein found in milk offers a nontoxic way to extinguish fabric fires.

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  9. Physics

    Shifting grains may explain earthquake lightning

    Mysterious lightning before or during earthquakes could get its spark from underground shifting.

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  10. Materials Science

    Phosphorene introduced as graphene alternative

    Sheets of ultrathin phosphorus could lead to faster semiconductor electronics.

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  11. Physics

    Material’s magnetism tuned by temperature

    Layered substance may lead to more reliable hard drives in the future.

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  12. Materials Science

    Silk bone screws may mend better than metal ones

    The silk-made screw and plates are less stiff than metal ones and dissolve in the body, making them a safer, less invasive alternative for setting broken bones.

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