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 ...

NZTA says their programme for the remainder of the summer was ambitious.

Partly cloudy. Slight chance of a shower, most likely this evening. Light winds becoming northerly 15 to 20 km/h in the early afternoon. Partly cloudy. Medium chance of showers. The chance of a ...

Mostly sunny morning. The chance of fog inland in the early morning. Medium chance of showers, most likely in the late afternoon and evening. The chance of a thunderstorm inland in the afternoon and ...