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The Razor-sharp Surgeonfish

As any diver can tell you, the waters under the sea can be beautiful and dangerous. The oceans are full of venemous fish, sharks, stinging jellies, manta rays and an assortment of spiny urchins and anenomeas. But who would imagine that one of the most attractive and colorful group of fish on the coral reef has its own surgical tool built right ...

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RazorsharpSurgeonfish
Astronomy

The Wilkinson Microwave Anisotropy Probe (WMAP)

The cosmic microwave background (CMB) radiation is the radiant heat left over from the Big Bang. It was first observed in 1965 by Arno Penzias and Robert Wilson at the Bell Telephone Laboratories in ... Continue reading

WilkinsonMicrowaveAnisotropyProbe
Geology

Why Don't We Try To Destroy Tropical Cyclones?

There have been numerous techniques that we have considered over the years to modify hurricanes: seeding clouds with dry ice or Silver Iodide, cooling the ocean with cryogenic material or icebergs, ... Continue reading

TropicalCyclones
Geology

Igneous Rocks, Born of Fire

Rocks are naturally occurring solid mixtures of substances primarily made of minerals. There are three kinds of rock on earth - igneous, sedimentary, and metamorphic rock. Sedimentary rock forms from ... Continue reading

IgneousRocksBornofFire
Medicine

Fighting Viruses

Viral diseases can be very difficult to treat because viruses live inside the body's cells where they are protected from medicines in the blood stream. Researchers developed the first antiviral drug ... Continue reading

FightingViruses

What's In A Name?

HurricaneElenaHurricane Elena as seen from the space shuttle. Have you ever wondered how hurricanes get their names? For several hundred years many hurricanes in the West Indies were named after the particular saint's day on which the hurricane occurred. Experience shows that the use of short, distinctive given names in written as well as spoken communications is quicker and less subject to error than the older more cumbersome latitude-longitude identification methods. These advantages are especially important in exchanging detailed storm information between hundreds of widely scattered stations, coastal bases, and ships at sea.

The use of easily remembered names greatly reduces confusion when two or more tropical storms occur at the same time. For example, one hurricane can be moving slowly westward in the Gulf of Mexico, while at exactly the same time another hurricane can be moving rapidly Northward along the Atlantic coast. In the past, confusion and false rumors have arisen when storm advisories broadcast from radio stations were mistaken for warnings concerning an entirely different storm located hundreds of miles away. Since 1953, Atlantic tropical storms have been named from lists originated by the National Hurricane Center and now maintained and updated by an international committee of the World Meteorological Organization. The lists featured only women's names until 1979, when men's and women's names were alternated.

Six lists are used in rotation. Thus, the 2001 list will be used again in 2007. The only time that there is a change in the list is if a storm is so deadly or costly that the future use of its name on a different storm would be inappropriate for reasons of sensitivity. If that occurs, then at an annual meeting by the WMO committee (called primarily to discuss many other issues) the offending name is stricken from the list and another name is selected to replace it. The name lists have an international flavor because hurricanes affect many nations and are tracked by the public and weather services of countries other than the United States. Names for these lists are selected from library sources and agreed upon by nations involved during international meetings of the World Meteorological Organization.