HS-PS4-1

Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.

  1. Physics

    Nuclear clocks are nearly here

    More precise clocks could improve technologies such as GPS and help scientists test major ideas in science.

    By
  2. Space

    Stars made of antimatter could lurk in our galaxy

    Fourteen sources of gamma rays in our galaxy look like they could be antistars — celestial bodies made of antimatter.

    By
  3. Planets

    Signs of a hidden Planet Nine in our solar system may be an illusion

    Hints of the remote planet, also called Planet X, relied on clumped up orbits of bodies beyond Neptune. A new study suggests that clumping doesn’t exist.

    By
  4. Physics

    Scientists Say: Radiation

    Radiation is the motion of energy through space as waves or particles.

    By
  5. Physics

    Let’s learn about light

    Light is a form of energy that moves in waves. Some light comes in waves we can see. Other waves are invisible to us — but still affect our world.

    By
  6. Earth

    Fin whales could help scientists map what lies below the seafloor

    Fin-whale calls are loud enough to penetrate into Earth’s crust, offering scientists a new way to study the properties of the ocean floor.

    By
  7. Physics

    Physicists have clocked the shortest time span ever

    The experiment revealed how long it takes light to cross a hydrogen molecule: just a couple hundred zeptoseconds.

    By
  8. Physics

    What did you say? Fabric masks can really muffle voices

    Some types of face masks muffle speech more than others — something that teachers should take into account.

    By
  9. Space

    Our feverish universe is getting hotter every day

    For the first time, astronomers have taken the temperature of the cosmos at different times in its history. Galaxy clusters are cranking up the heat.

    By
  10. Animals

    Here’s what bats ‘see’ when they explore the world with sound

    High-speed cameras, fancy microphones and slick software are helping scientists get the best look yet at what bats perceive through echolocation.

    By
  11. Tech

    ‘Frozen smoke’ could protect electronics from annoying static

    A fluffy material made from cellulose nanofibers and silver nanowires can protect electronic devices by blocking more than 99.99 percent of disrupting interference, a new study reveals.

    By
  12. Humans

    Changing climates can take cooling tips from warm regions

    When summer heat waves hit northern cities, people might look to keep cool using tropical building strategies — and forgotten architectural wisdom.

    By