A ripple tank can be used to measure and calculate frequency, wavelength and the speed of waves on the water's surface. A ripple tank is a transparent shallow tray of water with a light shining ...

Winter water supplies for cattle are often a challenge in cold climates. Shondah and Randall Otwell are ranchers in northeastern Wyoming who recently patented a new way to keep water from freezing ...

The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, with no ice covering the surface ...