“Access to safe water is not a technical problem—it’s a matter of will,” says Rhett Butler, the Chairman of SkyJuice Foundation. This belief drives SkyJuice’s efforts not only to deliver ...

Razor wire tops the fence around the Altoona Water Authority Lake Altoona pump station along Veterans Memorial Highway in Logan Township. Mirror photo by Patrick Waksmunski Late last year ...

The tubes were linked to speakers that piped low-pitched humming sounds that caused the water surface within the ring to ripple with waves. The scientists placed a small floating polyethylene foam ...

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

A ripple tank allows you to study transverse waves in water. Ripple tanks vary a lot in how they look, but usually have these features: a motor, which is used to dip the block into the water ...

Particulate deposition increases as water velocity slows in pools. Riffle macroinvertebrate communities are typically more diverse than communities in pools. The pattern in fish communities is ...