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 ...

Circular wave reflection from various barriers, 80-234, approx 2 minutes and 45 seconds From the notes: "The film first shows that the wave velocity decreases as the wave crosses a boundary from deep ...

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 ...