April 1998 Archives
30 April 1998
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ScienceNOW(Science - AAAS)
The Great Acid Lakes
Ancient lakes across a huge portion of the western United States may have been so acidic their waters would have dissolved a person's skin. The discovery, reported in the 30...
30 April 1998
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ScienceNOW(Science - AAAS)
New Clue to How Anthrax Kills
The deadly disease anthrax has been much in the news lately--thanks largely to fears that rogue leaders or terrorists will attempt to wage germ warfare with the anthrax bacillus. But...
30 April 1998
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ScienceNOW(Science - AAAS)
Cosmic Peep Show Still Censored
For Einstein's theory of gravity to hold water, it must be impossible to glimpse the heart of a black hole--a point where the force of gravity is infinite, called a...
29 April 1998
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ScienceNOW(Science - AAAS)
Fishing for Space Dust in Antarctic Well
A robotic vacuum has retrieved thousands of particles that journeyed from the chill of outer space to the frigid depths of a water well at the South Pole. The tiny...
29 April 1998
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ScienceNOW(Science - AAAS)
Early Planet Theory: Not Standing on Solid Ground
Forest Ray Moulton, an American astronomer known for a dominant early theory on how planets form, was born on this day in 1872. Moulton and Thomas Chrowder Chamberlin proposed in...
29 April 1998
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ScienceNOW(Science - AAAS)
Academy Elects Members
WASHINGTON, D.C.--The National Academy of Sciences (NAS) yesterday announced the election of 60 new members and 15 foreign associates, including British mathematician Roger Penrose. Membership is considered one of the...
29 April 1998
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ScienceNOW(Science - AAAS)
A Fast Start for Mammals?
Mammals were already a diverse bunch during the age of dinosaurs, according to a molecular clock based on genes from hundreds of vertebrate species. The researchers argue in tomorrow's issue...
28 April 1998
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ScienceNOW(Science - AAAS)
Out of Prison, Nobelist Heads for Europe
Scientists in half a dozen countries have been vying to work with Nobel laureate D. Carleton Gajdusek, who was released from prison this week after serving a year on charges...
28 April 1998
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ScienceNOW(Science - AAAS)
Virtual Tour of Deep Neutrino Detector
Armchair scientists can venture 2 kilometers underground Tuesday morning to tour the newly completed Solar Neutrino Observatory (SNO). A live webcast will whisk virtual visitors down a mine shaft near...
28 April 1998
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ScienceNOW(Science - AAAS)
Solar Tornadoes
Vast tornadoes ravage the sun at speeds up to 200,000 kilometers per hour, astronomers reported today at a meeting at Rutherford Appleton Laboratory (RAL) near Oxford, U.K., celebrating the extension...
28 April 1998
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ScienceNOW(Science - AAAS)
Mutation Scars Hearts
Scientists have found a mutation that leads to an inherited form of heart failure. The defective gene, reported in the 1 May issue of Science, may help researchers understand what...
27 April 1998
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ScienceNOW(Science - AAAS)
Bird Watcher's Birthday
Naturalist John James Audubon, renowned for his intricate paintings of North American birds, was born on 26 April 1785 in what is now Haiti. Audubon grew up in France and...
27 April 1998
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ScienceNOW(Science - AAAS)
Swirl the Wine
Many wine lovers uncork a bottle of their favorite red and set it aside for a few minutes to let it breathe. But that won't happen through a bottle's narrow...
27 April 1998
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ScienceNOW(Science - AAAS)
Teflon Heart
A nagging problem with artificial hearts and other medical implants is that blood proteins stick to them, gumming them up and sometimes leading to dangerous blood clots. Now scientists have...
27 April 1998
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ScienceNOW(Science - AAAS)
Plants Battle Cavity Creeps
After polishing your teeth, the dentist of tomorrow may well have you swish a mouthful of plant vaccine. Researchers have shown that antibodies from genetically engineered plants can ward off...
24 April 1998
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ScienceNOW(Science - AAAS)
How You Make Me Laugh
Although laughing gas was discovered nearly 200 years ago, how it works in the brain has been an enduring mystery. But in this month's Nature Medicine, researchers report that nitrous...
24 April 1998
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ScienceNOW(Science - AAAS)
Hard-Rolling Hurricanes
Working amidst gale-force winds and torrential rains, a team of researchers has discovered that hurricanes whip up highly localized "rolls" of wind that bring stormy air from high in the...
24 April 1998
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ScienceNOW(Science - AAAS)
Cholera's Gregarious Genes
Bacteria are legendary for their ability to swap genes for antibiotic resistance. Now researchers have evidence of how one bug at least--Vibrio cholerae, which causes cholera--may have captured other kinds...
23 April 1998
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ScienceNOW(Science - AAAS)
Report Cites Massive Station Overruns
WASHINGTON, D.C.--An independent report released here today by NASA's Advisory Council paints a sobering picture of the agency's space station program. After a major overhaul 5 years ago, the planned...
23 April 1998
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ScienceNOW(Science - AAAS)
Gamma Blast From the Past
COLUMBUS, OHIO--A blast of gamma rays picked up by satellites last December originated 10 billion years ago at the very edge of the visible universe, observers reported here last Sunday....
23 April 1998
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ScienceNOW(Science - AAAS)
Catalyst Captures Natural Gas
When natural gas is discovered at remote oil drilling sites, it is typically burned off or pumped back into the ground, because shipping the gas costs more than it's worth....
23 April 1998
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ScienceNOW(Science - AAAS)
Drought Struck First Colonists
Bad weather may have plagued the first English settlements in America. According to a new analysis of tree-ring climate data, the "Lost Colony" of Roanoke Island in North Carolina and...
22 April 1998
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ScienceNOW(Science - AAAS)
The Price of Peak Performance
SAN FRANCISCO--Elite athletes sometimes push themselves so hard while training that their performance begins to suffer. Now a physiologist has measured the toll this overtraining can take on athletic ability,...
22 April 1998
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ScienceNOW(Science - AAAS)
More Signs of a Toasty Greenhouse
The Northern Hemisphere's three warmest years in the last 6 centuries were 1990, 1995, and 1997, according to a new climate analysis in tomorrow's issue of Nature. Researchers compiled records...
22 April 1998
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ScienceNOW(Science - AAAS)
Faster Clotting From Factor VII
Scientists have tweaked the structure of a protein so that it gets blood to clot 50 times faster than it normally does. The advance, described in the current issue of...
22 April 1998
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ScienceNOW(Science - AAAS)
Grandmother Theory Takes a Hit
Last February, the idea that it's advantageous for human females to live long after menopause so they can help feed their grandchildren--a notion taken from studies of African hunter-gatherers--captured public...
21 April 1998
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ScienceNOW(Science - AAAS)
Finding Biodiversity Hotspots
Reading the lay of the land can lead biologists to biodiversity hotspots. Landscapes with great variation in slope, soil, and other characteristics tend to shelter more species than do featureless...
21 April 1998
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ScienceNOW(Science - AAAS)
U.S. Blacklists Russian Institutes
WASHINGTON, D.C.--The U.S. State Department has compiled a secret list of 20 Russian research institutes suspected of helping Iran's missile program and is restricting the flow of U.S. research funds...
21 April 1998
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ScienceNOW(Science - AAAS)
Space Warped by Neutron Star
X-rays from a distant neutron star have shown that its massive gravity is warping the motions of nearby objects just as Einstein's theory of relativity predicts. Since the early 1940's,...
21 April 1998
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ScienceNOW(Science - AAAS)
Spying on Solar Systems in the Making
Astronomers today unveiled unprecedented views of swirling disks of dust around young stars, apparently the nurseries of planets like our own. The new images, made with sensitive new midinfrared and...
20 April 1998
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ScienceNOW(Science - AAAS)
New Life for Australian Research Centers
MELBOURNE--A major network of research partnerships has been spared the budgetary ax. Last week the Australian government announced it would extend the life of its Cooperative Research Centers (CRCs) program...
20 April 1998
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ScienceNOW(Science - AAAS)
Castle Walls Trace Killer Quake
In the ruins of a castle destroyed during the Crusades, researchers have for the first time found geologic evidence of a major earthquake that shook the Middle East almost 800...
20 April 1998
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ScienceNOW(Science - AAAS)
Exercise Doesn't Raise HIV Levels
SAN FRANCISCO--Although AIDS patients have been told to avoid strenuous exercise, results of a study announced here yesterday at the Experimental Biology '98 meeting show that they can undertake a...
17 April 1998
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ScienceNOW(Science - AAAS)
Antarctic Ice Shelf Suffers Loss
A chunk of ice twice the size of Manhattan broke away from the northernmost part of the Antarctic peninsula in February, and scientists are blaming rising temperatures. The stability of...
17 April 1998
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ScienceNOW(Science - AAAS)
Fast Reactions From Tiny Mixer
Scientists will soon be able to get a peek at exactly what proteins do in the first few microseconds of folding. A report in an upcoming issue of Physical Review...
17 April 1998
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ScienceNOW(Science - AAAS)
Gene Therapy for Arthritis
Scientists have used gene therapy to sharply reduce joint swelling from arthritis in rabbits. The finding, reported in this week's Proceedings of the National Academy of Sciences, could someday lead...
17 April 1998
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ScienceNOW(Science - AAAS)
The Guts of HIV?
Researchers know well the terrible progression from HIV infection to AIDS, but they're less clued in to how the virus gets a toehold in the body. The virus--which attacks immune...
16 April 1998
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ScienceNOW(Science - AAAS)
The Moon Through The Trees
The diameter of tree seedlings may fluctuate with the tides, according to a paper in tomorrow's Nature. The changes are barely perceptible--only a few hundredths of a millimeter--but scientists say...
16 April 1998
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ScienceNOW(Science - AAAS)
New Solar Chips Pull Fuel from Water
Solar power enthusiasts have long dreamed of replacing fossil fuels with clean-burning hydrogen gas. Although solar cells can be harnessed to rip apart the hydrogen and oxygen in water molecules,...
16 April 1998
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ScienceNOW(Science - AAAS)
The RAP on Staph Infections
The dangerous pathogen Staphylococcus aureus causes infections ranging from skin abscesses to toxic shock syndrome. Roughly one-third of the strains currently isolated from patients who acquire S. aureus infections while...
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