Physics

  1. Physics

    Sounds of Music

    Interested in the relationship between musical instruments and the physics of sound? This Rice University Web site offers illustrated explanations of physics terms such as pitch, frequency, and standing waves. It also demonstrates tuning systems, intervals, octaves, and more. There’s a quiz at the end of each module. Go to: http://cnx.rice.edu/content/m11060/latest/

    By
  2. Materials Science

    News That’s Fit to Print—and Preserve

    Analyses of newsprint materials suggest that, despite their frail appearance, newspapers can last more than 200 years in storage—a fact that calls into question the merits of microfilming.

    By
  3. Physics

    Topsy Turvy: In neutrons and protons, quarks take wrong turns

    Revved-up particles, namely quarks, spinning inside neutrons in the opposite direction to that of the neutrons themselves, challenge the prevailing model of how quarks behave.

    By
  4. Materials Science

    Crystal Clear: Liquid crystal sensor plays nature’s game

    By fixing the components of a cell membrane to a liquid crystal, researchers devised a sensitive and high-speed sensor for detecting chemical and biowarfare agents.

    By
  5. Materials Science

    Crystal Clear: Liquid crystal sensor plays nature’s game

    By fixing the components of a cell membrane to a liquid crystal, researchers devised a sensitive and high-speed sensor for detecting chemical and biowarfare agents.

    By
  6. Materials Science

    New materials take the heat

    Researchers have devised a way to prevent an innovative solar cell material from degrading under high temperatures and prolonged exposure to light.

    By
  7. Materials Science

    New materials take the heat

    Researchers have devised a way to prevent an innovative solar cell material from degrading under high temperatures and prolonged exposure to light.

    By
  8. Materials Science

    Drug particle delivers insulin on demand

    Injectable polymer nanoparticles could store insulin in the body over several days and release the medication precisely when blood sugar concentrations change.

    By
  9. Materials Science

    Drug particle delivers insulin on demand

    Injectable polymer nanoparticles could store insulin in the body over several days and release the medication precisely when blood sugar concentrations change.

    By
  10. Physics

    Dune leapfrogging is deciphered

    Some wind-propelled sand dunes can pass right through each other if their relative sizes are right, new computer simulations indicate—although the sand grains of one dune don't actually penetrate through the other dune.

    By
  11. Physics

    Dune leapfrogging is deciphered

    Some wind-propelled sand dunes can pass right through each other if their relative sizes are right, new computer simulations indicate—although the sand grains of one dune don't actually penetrate through the other dune.

    By
  12. Physics

    Hints emerge of a four-quark particle

    Previously observed only in twos, threes, and perhaps in fives, quarks and antiquarks in a newfound particle may have glommed together to form a never-before-seen foursome.

    By