Posted by: undularbore | August 6, 2010

What IS an Undular Bore, you may ask…

Undular bores are a type of “gravity wave”—so called because gravity acts as the restoring force essential to wave motion. Analogy: “We’re all familiar with gravity waves caused by boats in water,” points out Coleman. “When a boat goes tearing across a lake, water in front of the boat is pushed upward. Gravity pulls the water back down again and this sets up a wave.”

This description comes from this NASA article that also has a nifty video. Go read it now!

http://science.nasa.gov/science-news/science-at-nasa/2007/11oct_undularbore/

Maybe one day I’ll get to see one! Have you seen one?

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