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Friday, March 19, 2010
Friday, February 12, 2010
Friday, January 22, 2010

What's In That Fish Stick? Give It A DNA Test

January 22, 2010 Brenda Tan and Matt Cost, high school seniors from Trinity School in New York City, used a technique called DNA barcoding to find out what species were present in over 200 animal products. Their results suggest buyers should beware!

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Friday, January 08, 2010

Stashing Carbon Dioxide In Rocks

January 8, 2010 Basalt formations off the East Coast of the U.S. could suck up a billion tons of carbon dioxide, according to a new study. Paleontologist Paul Olsen, of Columbia University's Lamont-Doherty Earth Observatory, explains how to get the CO2 into the rocks, and why scientists believe it won't leak out.

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Friday, January 01, 2010

Forget Sledding, Try A Snowflake Safari

January 1, 2010 Winter weather means more than skiing and snowmen. Bullet rosettes, stellar plates and capped columns are just a few of the crystal varieties commonly found in snowstorms. Science Friday asked Kenneth Libbrecht, physicist at Caltech and snowflake expert, for guidance on snowflake hunting.

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Friday, December 18, 2009

Eggnog: Spike And Let It Sit, For Safety

Eggnog sample

December 18, 2009 A perennial holiday dilemma: Will alcohol kill bacteria like salmonella in homemade eggnog? Microbiologists Vince Fischetti and Raymond Schuch, from The Rockefeller University, ran an experiment in the lab to see whether salmonella can survive in a vat of spiked eggnog.

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Friday, December 04, 2009

Paralyzing Worms With Light

December 4, 2009 Feed nematode worms a particular light-sensitive chemical and after the meal, the worms become paralyzed when exposed to UV light. Remarkably, the effects can be reversed under visible light, Neil Branda and colleagues report in the Journal of the American Chemical Society.

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Friday, November 20, 2009

Talking Turkey About Holiday Stress

November 20, 2009 The holiday season is here and for many that can mean a surge in stress. But what is stress exactly? Science Friday hit the streets of New York City to gauge stress levels and consulted with experts on the effects of stress and strategies for how to cope.

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Friday, November 13, 2009

Clone That Smile, Digitally

Cloned expressions

November 13, 2009 Researchers have figured out how to track the facial expressions of one person and map those movements onto a digital image of another person's face in real time. The result is something like a digital video puppet, which psychologists say may reveal something about human nature.

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Friday, October 23, 2009

Seeing Through The Eyes Of An Armadillo

Armadillo

October 23, 2009 Sam Easterson has refined the art of the critter cam. He is the curator of the Museum of Animal Perspectives — an online repository of "remotely sensed wildlife imagery." All the footage comes from cameras implanted in the landscape or strapped to the backs of animals.

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Friday, October 16, 2009

A Bird In Hand To Save Those In The Bush

Golden-crowned kinglet

October 16, 2009 Braddock Bay, on the southern shore of Lake Ontario, is a prime pit stop for migrating birds. In a converted hot dog stand near the Bay, ornithologists and volunteers capture, study and release about 10,000 passing birds each year.

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Friday, October 02, 2009

Cooking Up A River In The Lab

Mini river

October 2, 2009 For almost 100 years, scientists have been trying to create a meandering river in the laboratory. Christian Braudrick and Bill Dietrich of University of California, Berkeley, finally found a recipe and published it in the Proceedings of the National Academy of Sciences this week.

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Friday, September 25, 2009

Saving Turtles From The Wrong Side Of The Tracks

Wood turtle.

September 25, 2009 Michael Musnick is a citizen scientist who studies wood turtles in the Great Swamp — a stretch of wetland 60 miles north of New York City. He found turtles dying in the railroad tracks and proposed a solution to the Metropolitan Transportation Authority: tiny turtle bridges.

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Friday, September 11, 2009

Video Pick: Why Do Squid Light Up?

September 11, 2009 Squid (the kind served as calamari) can make their skin pulse different colors. Biologist Casey Dunn and his student Sophia Tintori were interested in how this light show works, so they asked their colleagues at the University of California, Santa Barbara for an explanation.

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Friday, September 04, 2009

Golfing In Space, Astronaut Included

September 4, 2009 The New York Hall of Science in Queens opened an unusual mini golf park this summer. Every hole illustrates a different scientific principle. Charles Camarda, a NASA engineer and former astronaut, agreed to play a round and explain some basic space science as he putted.

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