A Moment of Science
Tidal waves actually have nothing to do with tides, and nothing to do with ordinary ocean waves. Find out what causes them on this Moment of Science.
Whether you find chirping musical or annoying, males need it to attract female mates. Male crickets on the Hawaiian island Kauai, have a problem.
On this Moment of Science, learn about the town that fought a volcano, and won!
Is Hawaii due for a new volcano? Learn about Hawaii's growing island on this Moment of Science.
Ordinary ocean waves are caused by the action of wind, like ripples on a wind-blown pond. Even the impressive surf of the Pacific got its start as wind blowing across the open water. The height of such waves depends on how fast the wind is blowing, and how much open water the wind travels across.
For some time now, scientists have understood that the earth’s crust is divided into plates that move about at the rate of a few inches a year. Over time, this movement will form mountain ranges and volcanoes. They have also known that the earth’s mantle, the layer between the earth’s crust and core, was the [...]
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