Wednesday, 3 January 2007

Hurricane Katrina simulation


Click on image to view movie.

Orange represents ocean temperatures at 82 degrees Fahrenheit or higher. This is the temperature required for hurricanes to form. The bottom left window shows wind analysis model data from NASA's Modeling, Analysis, and Prediction (MAP '05) program. The top right window shows rainfall accumulation for Hurricane Katrina from the TRMM spacecraft. The bottom right window shows energy-releasing deep convective clouds (as high as 16 km) in the eyewall of Hurricane Katrina. These clouds, called hot towers, formed on August 28 while the storm was intensifying to a category 5 hurricane.
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Contents of the day

Article of the Day

Radiocarbon Dating

Radiocarbon dating is a method for determining the age of carbonaceous materials—especially ancient archaeological specimens—that relies on the presence of a naturally occurring isotope called carbon-14. After an organism dies, the amount of carbon-14 in its remains gradually decreases through radioactive beta decay. Measuring the amount of carbon-14 in an organism's remains thus allows scientists to determine how long it has been dead. How do atomic bombs affect atmospheric carbon-14 levels? More... Discuss

This Day in History

United Negro College Fund Established (1944)

Founded in 1944 by Frederick D. Patterson and Mary McLeod Bethune, the United Negro College Fund (UNCF) provides college tuition for African-American students and scholarship funds for its approximately 40 member colleges. Many of its beneficiaries are the first in their families to attend college, and it counts many distinguished individuals among its alumni, including Martin Luther King, Jr. The UNCF motto is one of the most well known slogans in the history of advertising. What is it? More... Discuss

Today's Birthday

Karel Appel (1921)

Appel was a Dutch painter and sculptor and co-founder of the abstract expressionist group COBRA, whose members hailed from Copenhagen, Brussels, and Amsterdam. Active from 1948 to 1951, the group created work featuring primary colors and spontaneous brushwork. Appel's own style was characterized by violent color and crude, reductive figures. Later in life, he turned to creating figurative sculptures in wood and metal. What was done to censor Appel's controversial fresco in Amsterdam City Hall? More... Discuss

In the News

stoicism discuss

Definition:(noun) An indifference to pleasure or pain.
Synonyms:stolidness
Usage:With the stoicism of the brutes who had raised him he endured his suffering quietly.

Quote of the Day
The gambling known as business looks with austere disfavor upon the business known as gambling.
Ambrose Bierce
(1842-1914) Discuss