Latest Undular bore Stories
Atmospheric waves that ripple through clouds could spin up tornadoes when a thunderstorm gets in the way, new research shows. Tornadoes generally form in the late spring when warming temperatures make the air unstable (though they've been known to pop up at other times of the year). The classic tornado-forming scenario features a layer of warm, moist air trapped under a layer of cold, dry air.
Pop quiz: define undular bore. If your answer included words such as dull or tiresome, i.e., boring, think again. Or better yet, click on the image to see an undular bore in action.
- A ceramic container used inside a fuel-fired kiln to protect pots from the flame.