WHAT'S INSIDE: PHYSICAL SCIENCE

Physical science is the study of the physical world around you. Learn about everything from electricity to magnetism in this section.
  • Acoustics
  • Chemistry
  • Electricity
  • Forensic Science
  • History of Physical Science
  • Magnetism
  • Matter
  • Mechanics
  • Nuclear Science
  • Optics

FEATURED: PHYSICAL SCIENCE

Microwaves, extremely short radio waves. The term is usually used to refer to radio waves with a wavelength between 30 centimeters and 3 millimeters—that is, with a frequency between 1 gigahertz (billion hertz) and 100 gigahertz.

More To Explore

You Might Also Like

How Holograms Work

If you want to see a hologram, you don't have to look much farther than your wallet. But the most impressive holograms are large scale and illuminated with lasers or displayed in a darkened room with carefully directed lighting. Learn how a hologram, light and your brain work together make clear, 3-D images.

How Body Farms Work

Imagine walking through a field and stumbling upon scads of corpses, all in various states of decomposition. It's not the setting for your next nightmare, but rather a very real discipline of forensic anthropology.

  • Most Popular

  • Most Watched

Don't Miss