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2011-03-30 14:49:20

If you're sitting on a bench in New York City's Central Park in winter, you're probably freezing. After all, the average temperature in January is 32 degrees Fahrenheit. But if you were just across the pond in Porto, Portugal, which shares New York's latitude, you'd be much warmer"”the average temperature is a balmy 48 degrees Fahrenheit. Throughout northern Europe, average winter temperatures are at least 10 degrees Fahrenheit warmer than similar latitudes on the northeastern coast of...

2008-12-03 17:09:34

For over two centuries, meteorologists were puzzled by the observation that atmospheric pressure in the tropics peaks at 10 a.m. and 10 p.m. nearly every day. In the late 1960s, a theory was proposed that these surface pressure variations result from waves that are generated by the sun's heating of the upper atmosphere. The waves, called solar tides, propagate to the ground as they travel around the globe. Strong support for this theory has now been presented in a study by a US-Japan team of...

2008-03-24 01:56:49

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. If this balance is upset, say by warming at the surface, the moist air rises, cools and...


Word of the Day
barratry
  • The offense of persistently instigating lawsuits, typically groundless ones.
  • An unlawful breach of duty on the part of a ship's master or crew resulting in injury to the ship's owner.
  • Sale or purchase of positions in church or state.
This word ultimately comes from the Old French word 'barater,' to cheat.
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