Neuron Network Goes Awry, and Brain Becomes an IPod

Posted on July 12, 2005March 10, 2020 by Lori Jia

The New York Times, July 12, 2005

Seven years ago Reginald King was lying in a hospital bed recovering from bypass surgery when he first heard the music.

It began with a pop tune, and others followed. Mr. King heard everything from cabaret songs to Christmas carols. “I asked the nurses if they could hear the music, and they said no,” said Mr. King, a retired sales manager in Cardiff, Wales.

“I got so frustrated,” he said. “They didn’t know what I was talking about and said it must be something wrong with my head. And it’s been like that ever since.”

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How and Where On Earth Did Life Arise?

Posted on July 1, 2005May 28, 2020 by admin

Science, July 1, 2005

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For the past 50 years, scientists have attacked the question of how life began in a pincer movement. Some approach it from the present, moving backward in time from life today to its simpler ancestors. Others march forward from the formation of Earth 4.55 billion years ago, exploring how lifeless chemicals might have become organized into living matter.

Working backward, paleontologists have found fossils of microbes dating back at least 3.4 billion years. Chemical analysis of even older rocks suggests that photosynthetic organisms were already well established on Earth by 3.7 billion years ago.

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Plain, Simple, Primitive? Not the Jellyfish

Posted on June 21, 2005March 27, 2020 by Lori Jia

The New York Times, June 21, 2005

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Jellyfish have traditionally been considered simple and primitive. When you gaze at one in an aquarium tank, it is not hard to see why.

Like its relatives the sea anemone and coral, the jellyfish looks like a no-frills animal. It has no head, no back or front, no left or right sides, no legs or fins. It has no heart. Its gut is a blind pouch rather than a tube, so its mouth must serve as its anus. Instead of a brain, it has a diffuse net of nerves.

A fish or a shrimp may move quickly in a determined swim; a jellyfish pulses lazily along.

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Life On Mars?

Posted on May 31, 2005April 17, 2020 by admin

Smithsonian, May 31, 2005

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On August 7, 1996, reporters, photographers and television camera operators surged into NASA headquarters in Washington, D.C. The crowd focused not on the row of seated scientists in NASA’s auditorium but on a small, clear plastic box on the table in front of them. Inside the box was a velvet pillow, and nestled on it like a crown jewel was a rock—from Mars. The scientists announced that they’d found signs of life inside the meteorite. NASA administrator Daniel Goldin gleefully said it was an “unbelievable” day. He was more accurate than he knew.

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Testing Darwin

Posted on May 19, 2005April 17, 2020 by admin

Discover, May 19, 2005

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If you want to find alien life-forms, hold off on booking that trip to the moons of Saturn. You may only need to catch a plane to East Lansing, Michigan.

The aliens of East Lansing are not made of carbon and water. They have no DNA. Billions of them are quietly colonizing a cluster of 200 computers in the basement of the Plant and Soil Sciences building at Michigan State University. To peer into their world, however, you have to walk a few blocks west on Wilson Road to the engineering department and visit the Digital Evolution Laboratory. Here you’ll find a crew of computer scientists, biologists, and even a philosopher or two gazing at computer monitors, watching the evolution of bizarre new life-forms.

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