Physics

More Stories in Physics

  1. Animals

    Analyze This: Shimmering colors may help beetles hide

    Delve into data showing how brilliant colors that shift as a viewer — or predator — moves may help iridescent insects blend in.

    By
  2. Physics

    How to temporarily ‘fossilize’ a soap bubble

    Here’s how to freeze a soap bubble in midair. Warning: The environment needs to be frosty, and even then it can take a certain amount of trial and error.

    By
  3. Health & Medicine

    Experts rethink need for X-ray shielding of patients

    For close to 70 years, workers who perform X-ray scans of the body have been advised to shield sensitive tissues with lead 'aprons.' That may soon stop.

    By
  4. Materials Science

    New twist can hush — even cloak — some sounds

    Swiss engineers developed clear, spiral structures to make a new sound-dampening system. Those twists block some vibrations and lets others through.

    By
  5. Animals

    Drones might one day capture a dolphin’s breath in midair

    High-speed footage of dolphin spray reveals that droplets blast upward at speeds close to 100 kilometers per hour.

    By
  6. Physics

    Scientists Say: Decibel

    A decibel is a unit of measurement that describes a sound’s volume. It’s used for sounds that are in the range of human hearing.

    By
  7. Math

    Color-changing fibers help unravel a knotty problem

    Experiments with colorful fibers helped scientists discover a few simple rules on why the strength of various types of knots differs.

    By
  8. Materials Science

    Here’s how to hide some objects from heat-sensing cameras

    A special coating that conceals temperature information from heat-detecting cameras might someday be used as a privacy shield.

    By
  9. Materials Science

    Self-powered surface may evaluate table-tennis play

    Scientists at the Georgia Institute of Technology built a 'smart' surface on which to play table tennis. It can track the location, speed and direction of the ball.

    By