In science, the word medium is often used to describe a material through which waves can pass. For example, sound waves travel at different speeds through air, wood, and water, each of which is a different medium.
OH - Dayton / Wright-Patterson Air Force Base
- Broken clouds
- Temperature: 66.2 °F / 19 °C
- Wind: Northeast, 3.5 mph
- Pressure: 1012 hPa
- Rel. Humidity: 88 %
- Visibility: 16.1 km
Sun, 08/01/2010 - 03:58