Physics

  1. Space

    Newfound gravitational waves may be from the biggest black holes in the universe

    Observations of dead stars hint that ripples in spacetime — ripples light-years long — roll through our universe.

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  2. Plants

    A single particle of light can kick off photosynthesis

    In a new experiment with bacteria, a lone photon sparked the process of turning light to chemical energy.

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  3. Materials Science

    This house is partly made of recycled diapers

    After being washed, dried, sanitized and shredded, used diapers were mixed with other materials to make a strong concrete.

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  4. Space

    Lightning dances through Jupiter’s skies much like it does on Earth 

    Data from NASA’s Juno spacecraft hint that Jupiter’s lightning extends in jagged steps as it does on Earth.

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  5. Physics

    Explainer: What is chaos theory?

    Chaos can help scientists explore subjects from climate change to human brains. Learn about the theory behind this field of science.

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  6. Math

    Scientists Say: Parabola

    A parabola is a U-shaped curve, where every point along that curve is the same distance from another point and a line.

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  7. Math

    Scientists Say: Ellipse

    Ellipse describes the shapes of planetary orbits around their stars and explains the wacky acoustic phenomenon of “whispering chambers.”

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  8. Physics

    Shouting into the wind may seem futile — but it’s really not

    Sending a sound upwind, against the flow of air, actually makes the sound louder — only it doesn’t sound that way to the person making the noise.

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  9. Physics

    Scientists Say: Explosion

    Explosions happen when chemical or nuclear reactions blow out a lot of heat, noise and expanding gas.

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  10. Materials Science

    Analyze This: A new fabric mimics polar bears’ pelts for warmth

    With layers that work like polar bears’ skin and fur, a material absorbs light and keeps it from escaping.

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  11. Physics

    Explainer: Reflection, refraction and the power of lenses

    The inner workings of microscopes, telescopes, eyeglasses and other lens-based devices rely on two important laws of optics.

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  12. Tech

    Nanocrystal ‘painted’ films may someday help relieve summer heat

    The rainbow palette and cooling powers of new plant-based films comes from their microscopic surface patterns of tiny crystals.

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