Emergency crews on Saturday found a third body in a 330-foot-deep sinkhole that had swallowed a dozen homes and forced the evacuation of nearly 1,000 people in a crowded Guatemala City neighborhood.

The body of Domingo Soyos, 53, was carried out of the enormous fissure and identified by family members, medical crews said.

Soyos was the father of teenagers Irma and David Soyos, whose bodies were found floating in a river of sewage soon after the sinkhole opened on Friday.

Residents said there were other people unaccounted for, but emergency crews could not confirm that.

Officials blamed recent rains and an underground sewage flow from a ruptured main for the tragedy. The pit emitted foul odors, loud noises and tremors, shaking the surrounding ground. A rush of water could be heard from its depths, and authorities feared it could widen or other sinkholes could open up.

With radiating waves, a skull and crossbones and a running person, a new ionizing radiation warning symbol is being introduced to supplement the traditional international symbol for radiation, the three cornered trefoil.

The new symbol is being launched today by the IAEA and the International Organization for Standardization (ISO) to help reduce needless deaths and serious injuries from accidental exposure to large radioactive sources. It will serve as a supplementary warning to the trefoil, which has no intuitive meaning and little recognition beyond those educated in its significance.

"I believe the international recognition of the specific expertise of both organizations will ensure that the new standard will be accepted and applied by governments and industry to improve the safety of nuclear applications, protection of people and the environment," said Ms. Eliana Amaral, Director, Division of Radiation, Transport and Waste Safety, IAEA.

The new symbol is aimed at alerting anyone, anywhere to the potential dangers of being close to a large source of ionizing radiation, the result of a five-year project conducted in 11 countries around the world. The symbol was tested with different population groups - mixed ages, varying educational backgrounds, male and female - to ensure that its message of "danger - stay away" was crystal clear and understood by all.

Researchers at Manchester University say while beauty is in the eye of the beer-holder, the amount of alcohol consumed is not the only factor.

Additional factors include the level of light in the pub or club, the drinker's own eyesight and the room's smokiness.

The distance between two people is also a factor.

They all add up to make the aesthetically-challenged more attractive, according to the formula.

The formula can work out a final score, ranging from less than one - where there is no beer goggle effect - to more than 100.

An = number of units of alcohol consumed
S = smokiness of the room (graded from 0-10, where 0 clear air; 10 extremely smoky)
L = luminance of 'person of interest' (candelas per square metre; typically 1 pitch black; 150 as seen in normal room lighting)
Vo = Snellen visual acuity (6/6 normal; 6/12 just meets driving standard)
d = distance from 'person of interest' (metres; 0.5 to 3 metres)

rown University's library boasts an anatomy book that combines form and function in macabre fashion. Its cover--tanned and polished to a smooth golden brown, like fine leather--is made of human skin.

In fact, a number of the nation's finest libraries, including Harvard's, have such books in their collections. The practice of binding books in human skin was not uncommon in centuries past, even if it was not always discussed in polite society.

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Brown's John Hay Library has three books bound in human skin--the 1568 anatomy text by the Belgian surgeon Andreas Vesalius, and two 19th-century editions of "The Dance of Death," a medieval morality tale.

One copy of "The Dance of Death" was rebound in 1893 by Joseph Zaehnsdorf, a master binder in London. A note to his client reports that he did not have enough skin and had to split it. The front cover, bound in the outer layer of skin, has a slightly bumpy texture, like soft sandpaper. The spine and back cover, made from the inner layer, feel like suede.

The Exhibition will utilize approximately 20,000-square-foot of exhibit space, showcasing the eye-opening effects of obesity on the human body through authentic human bodies of those who damaged their organs due to over- eating and lack of exercise. The exhibition also features a healthy lung and a black lung ravaged by smoking side by side in a vivid comparison that is undeniably more powerful than any textbook image. In addition to providing an up-close look inside our skeletal, muscular, respiratory and circulatory systems, the exhibition encourages healthy lifestyle choices by serving as a wake-up call demonstrating how our own choices directly affect our health. The exhibition will change the way people see themselves. It is designed to enlighten, empower, fascinate and inspire.

The human body specimens in the exhibition are preserved through a revolutionary technique called polymer preservation. In this process, human tissue is permanently preserved using liquid silicone rubber that is treated and hardened. The end result is a rubberized specimen, preserved to the cellular level, showcasing the complexity of the body's many bones, muscles, nerves, blood vessels and organs. The full-body specimens can take more than a year to prepare. After undergoing the polymer preservation process, they become impervious to decomposition.

Private space museum tours, celebrity lunches, a desert field trip with planetary scientists, autographed books and more will be offered in The Planetary Society's on-line auction, November 2-12, 2005, on eBay. Tours and memorabilia connected with Buzz Aldrin, Star Trek's Robert Picardo, Bill Nye the Science Guy, Neil deGrasse Tyson, David Brin, and more. The last hour of the auction coincides with Society's 25th anniversary dinner, honoring James Cameron and Ray Bradbury.

To model the consequences of imitation, the researchers turned to the physics of magnets. An applied magnetic field will coerce the spins of atoms in a magnetic material to point in a certain direction. And often an atom's spin direction pushes the spins of neighbouring atoms to point in a similar direction. And even if an applied field changes direction slowly, the spins sometimes flip all together and quite abruptly.

The physicists modified the model such that the atoms represented people and the direction of the spin indicated a person's behaviour, and used it to predict shifts in public opinion.

In the case of cellphones, for example, it is clear that as more people realised how useful they were, and as their price dropped, more people would buy them. But how quickly the trend took off depended on how strongly people influenced each other. The magnetic model predicts that when people have a strong tendency to imitate others, shifts in behaviour will be faster, and there may even be discontinuous jumps, with many people adopting cellphones virtually overnight.

In retrospect, this magazine's coverage of so-called evolution has been hideously one-sided. For decades, we published articles in every issue that endorsed the ideas of Charles Darwin and his cronies. True, the theory of common descent through natural selection has been called the unifying concept for all of biology and one of the greatest scientific ideas of all time, but that was no excuse to be fanatics about it. Where were the answering articles presenting the powerful case for scientific creationism? Why were we so unwilling to suggest that dinosaurs lived 6,000 years ago or that a cataclysmic flood carved the Grand Canyon? Blame the scientists. They dazzled us with their fancy fossils, their radiocarbon dating and their tens of thousands of peer-reviewed journal articles.

Get ready for a new Scientific American. No more discussions of how science should inform policy. If the government commits blindly to building an anti-ICBM defense system that can't work as promised, that will waste tens of billions of taxpayers' dollars and imperil national security, you won't hear about it from us. If studies suggest that the administration's antipollution measures would actually increase the dangerous particulates that people breathe during the next two decades, that's not our concern. No more discussions of how policies affect science either -- so what if the budget for the National Science Foundation is slashed? This magazine will be dedicated purely to science, fair and balanced science, and not just the science that scientists say is science. And it will start on April Fools' Day.