Uncategorized

  1. Materials Science

    A new spin on guiding sound waves along a one-way route

    A proposed acoustic topological insulator made of an array of spinning metal rods would channel sound waves in one direction along its edge, preventing any sound from bouncing away.

    By Andrew Grant
  2. Materials Science

    Suds turn silver nanoparticles in clothes into duds

    Bleach-containing detergents destroy antibacterial silver nanoparticles that coat clothes.

    By Beth Mole
  3. Astronomy

    Enigmatic 17th century nova wasn’t a nova at all

    A nova observed in 1670 was actually two stars colliding, new evidence suggests.

    By Helen Thompson
  4. Genetics

    Ebola virus not mutating as quickly as thought

    The virus causing the current Ebola epidemic in West Africa is not evolving as quickly as some scientists had suggested.