PhysicsCentral: Do You See What Eye See? - Sep 16, 2010

Laser surgery of the eye, more popularly known as LASIK, is an important use of lasers in medicine. See PhysicsCentral: Do You See What Eye See? to learn how it's done.

Four Color Theorem Intro - Sep 1, 2010

Have you ever wondered how many colors are necessary to make a map? Four Color Theorem Intro can help you figure it out!

- To learn more see this page by Ivars Peterson.

Physicists determine air gives liquids their splash - Aug 16, 2010

What happens when a droplet of liquid lands on a solid surface? What determines the way it splashes? How does what happens depends on the kind of gas and the pressure?

- To find out see Physicists determine air gives liquids their splash.
- And to learn how a raindrop splashes before it hits the ground, visit this New Scientist page.

Tsunami - Aug 1, 2010

Remember the 2004 Sumatra tsunami? Take a look at this Wikipedia photo.

- Visit Tsunami to learn the basic science of these waves, how they are produced, and what role NOAA plays in predicting them and minimizing their damage.
- To learn more, see this NOAA video on its method to forecast tsunamis.

soapbubbledk - Jul 16, 2010

Visit the colorful and well-illustrated soapbubbledk to learn about soap bubbles and films.

- You'll find out why bubbles don't grow bigger and bigger, how bubbles can float, and how to attract a soapbubble with a balloon.
- Photos show the interesting soap films you can make on a wire frame, or even inside a bubble.

Sand Dunes: A Phenomenon Of Wind - Jul 1, 2010

Sand dunes are formed by wind in dry regions with a lot of sand on the surface. To learn more, see Sand Dunes: A Phenomenon Of Wind.

- To find out how dunes are classified, see pattern indicators and also sand dunes.

Faster than Sound - Jun 16, 2010

Visit Nova's Faster than Sound to find out how Chuck Yeager broke the sound barrier in 1947 in the Bell X-1. You'll find recollection from the X-1's pilots and one of the X-1's designers, and learn about the historical background as well. In the Speed Machines section, you can find out about speed records in the air, on land, and on water.

Death Star: A Bad Day In the Milky Way - Jun 1, 2010

Another possible fate for especially massive stars is to explode in a hypernova, causing a gamma-ray burst. To learn about the effect a gamma-ray burst would have on Earth, check out Death Star: A Bad Day In the Milky Way.

Amazing Plasmas - May 16, 2010

Plasmas aren't common on Earth (besides fire, lightning, and the aurora borealis), but plasma makes up most of the matter in the universe. Read about space plasmas at Amazing Plasmas. For just a few images of plasma in space, see this space plasma photo gallery and these APOD images of our Sun and the Cat's Eye Nebula.

Hess proposes sea-floor spreading - May 1, 2010

See Hess proposes sea-floor spreading for the story of how Harry Hess proposed seafloor spreading. In addition, you can visit the USGS' Understanding Plate Motions to see how the mid-Atlantic ridge goes right through Iceland.