Category: Chemistry
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...
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...
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....
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,...
7 April 1998
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ScienceNOW(Science - AAAS)
Nobel Bondage
One of the most fruitful decades of chemical research began on 6 April 1931, with a landmark paper by Linus Pauling on the relationship between chemical bonds and the magnetic...
30 March 1998
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ScienceNOW(Science - AAAS)
PET Scan Personalizes Cancer Treatment
DALLAS--Radioactive tracers can reveal whether a breast tumor is shrinking in response to the drug tamoxifen, according to results from a pilot trial announced here yesterday at a national meeting...
17 March 1998
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ScienceNOW(Science - AAAS)
The Path of Life
A watershed in biochemistry--Melvin Calvin's scientific paper detailing the complete biochemical pathway through which plants convert carbon dioxide from the atmosphere into carbohydrates--was published 36 years ago, in the 16...
11 March 1998
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ScienceNOW(Science - AAAS)
Biosensing Within the Cell
A microscopic sensor can size up the inner workings of a living cell. The sensor, unveiled last week in New Orleans at the Pittsburgh Conference on Analytical Chemistry and Applied...
23 February 1998
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ScienceNOW(Science - AAAS)
Dyes, Planets, and Peas
Editor's Note: Today we revisit three ScienceThens, first posted last year. A Discovery to Dye For Tuesday, 24 February: Today is the birthday of Carl Graebe, a German organic chemist...
18 February 1998
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ScienceNOW(Science - AAAS)
Custom Molecule Enhances Radiation Therapy
PHILADELPHIA--A molecule known for its Texas-sized girth now appears to be a promising new weapon against cancer. A pilot trial of the new heavy metal-bearing compound, described here Saturday at...
6 February 1998
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ScienceNOW(Science - AAAS)
New Biosensor Does Molecular Flash Dance
Scientists have developed a molecular flashbulb that's timed to go off when two molecules embrace. The finding, reported in today's issue of Science, could someday lead to ultrasensitive methods for...
3 February 1998
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ScienceNOW(Science - AAAS)
The Noble Light of Bubbles
Tiny air bubbles blasted with sound waves may act as crucibles for chemical reactions. Scientists have known for more than 60 years that as these bubbles rhythmically collapse and expand,...
22 January 1998
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ScienceNOW(Science - AAAS)
Chemists Create Enzyme Mimic
Scientists have created a molecule that mimics the look and behavior of a natural enzyme, a workhorse protein that speeds up chemical reactions in living things. The achievement, described in...
12 December 1997
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ScienceNOW(Science - AAAS)
The Chemistry of Champagne Fizz
Raise a toast to William Henry, the British chemist. Born on this day in 1774, Henry is best known for his studies of the solubility of gases in liquids. In...
24 November 1997
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ScienceNOW(Science - AAAS)
The Attraction of Gases
Yesterday was the 160th anniversary of the birth of Johannes van der Waals, a Dutch physical chemist known for his theories about gases and interatomic forces. Van der Waals described...
24 October 1997
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ScienceNOW(Science - AAAS)
Swell Gel Sensors
Scientists have invented plastic gels that, like high-tech litmus paper, change color after encountering a target chemical. The versatile gels, described in this week's issue of Nature, could lead to...
17 October 1997
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ScienceNOW(Science - AAAS)
The Smell of a Hard Shower
Tomorrow is the birthday of Christian Schoenbein, a German chemist born in 1799 who named ozone and invented the first synthetic explosive. Schoenbein's work on ozone was considered a classic...
15 October 1997
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ScienceNOW(Science - AAAS)
ATP Enzyme Researchers Awarded Chemistry Nobel
This year's Nobel Prize in Chemistry will be awarded to three researchers for "pioneering work" on enzymes that play key roles in the way our cells synthesize and burn fuel....
10 October 1997
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ScienceNOW(Science - AAAS)
Compound Discoveries
Today is the birthday of physicist Henry Cavendish, born in 1731 and known for his discoveries about the composition of air, water, and earth. In 1766 Cavendish demonstrated the existence...
7 October 1997
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ScienceNOW(Science - AAAS)
Fuel Catalyst Designer Wins Big
The world's most lucrative engineering award today went to Vladimir Haensel, 83, a chemical engineer who invented a catalyst that led to high-quality gasoline. The prestigious Charles Stark Draper Prize,...
6 October 1997
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ScienceNOW(Science - AAAS)
Head-On Collisions Break Water Bonds
Violently colliding water jets can create tiny implosions capable of driving chemical reactions, according to a paper in this week's Journal of the American Chemical Society. The process is a...
1 October 1997
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ScienceNOW(Science - AAAS)
Catalyst Keeps Polymers Short and Sweet
The plastics industry depends on catalysts to link tens of thousands of identical chemical groups into the polymer chains that are the basis of plastics. Now chemists have created a...
22 September 1997
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ScienceNOW(Science - AAAS)
King Faraday
On this day in 1791, Michael Faraday, a renowned English physical chemist and popularizer of science, was born. Faraday is considered the most brilliant experimentalist of the 1800s for his...
11 September 1997
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ScienceNOW(Science - AAAS)
Tea for Tumors?
LAS VEGAS--Health conscious drinkers who sip red wine for its beneficial antioxidants may want switch their beverage of choice to a piping cup of green tea. New work presented here...
9 September 1997
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ScienceNOW(Science - AAAS)
Cancer Link to Second-Hand Smoke Tightened
LAS VEGAS--Epidemiological studies have suggested for years that second-hand smoke can as much as double the risk of cancer in nonsmokers. New findings presented here today at the semi-annual meeting...
8 September 1997
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ScienceNOW(Science - AAAS)
King of Carbon Bondage
Yesterday was the birthday of Friedrich Kekulé, a German chemist born in 1829 who laid the foundations of structural organic chemistry. In 1858 Kekulé, who initially studied architecture, set out...
27 August 1997
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ScienceNOW(Science - AAAS)
A Fertile Chemist
Today is the birthday of Karl Bosch, a German chemist born in 1874 whose research led to industrial production of chemical fertilizers and explosives. Building on the work of chemist...
4 August 1997
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ScienceNOW(Science - AAAS)
Unraveling Insulin
Yesterday was the 79th birthday of Frederick Sanger, an English biochemist who was the first to take apart a protein molecule, chemically removing one amino acid at a time. Researchers...
25 July 1997
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ScienceNOW(Science - AAAS)
Molecular Eruptions in Water's Weird Cousin
The crystalline ice of snowflakes and winter ponds is a rare commodity in the universe. In the cold reaches of interstellar space, most water probably exists in a strange frozen...
21 July 1997
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ScienceNOW(Science - AAAS)
His Discoveries Made a Splash
Today is the birthday of Thomas Charles Hope, a Scottish chemist born in 1766. Although he considered himself a teacher, Hope is remembered for two original contributions to chemistry. Hope...
25 June 1997
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ScienceNOW(Science - AAAS)
Chemical Agents in Bug Warfare
NOW wishes a happy birthday to Thomas Eisner, 68, considered the founder of chemical ecology. An entomologist at Cornell University, Eisner has earned renown for discovering many of the intricate...
19 June 1997
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ScienceNOW(Science - AAAS)
High-Powered Chemist
Sir Cyril Norman Hinshelwood, a British physical chemist who shed light on how chemicals react, was born 100 years ago on this day. Hinshelwood, a professor at Oxford University, studied...
11 June 1997
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ScienceNOW(Science - AAAS)
Mercury Poisoning Kills Lab Chemist
In a tragic end to a story that began last summer, an internationally known research chemist at Dartmouth College, Karen Wetterhahn, died on Sunday of poisoning from a few drops...
11 June 1997
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ScienceNOW(Science - AAAS)
Is Women's Intuition in the Genes?
LONDON--Women with a single copy of the X chromosome from their mothers are more likely than those with a copy from their fathers to have problems coping with social situations,...
9 June 1997
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ScienceNOW(Science - AAAS)
The Man Behind the Mole
On this day in 1776, Amedeo Avogadro, an Italian scientist known as one of the founders of physical chemistry, was born. Avogadro studied the properties of electricity and liquids, but...
15 May 1997
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ScienceNOW(Science - AAAS)
Building Blocks From the Primordial Soup
Forty-four years ago today, American chemist Stanley Miller gave a jolt to the debate on the origins of life with the publication in Science of his famous paper, "A Production...
9 May 1997
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ScienceNOW(Science - AAAS)
Getting Molecules to Shape Up
Dorothy Crowfoot Hodgkin, a British x-ray crystallographer who won the 1964 Nobel Prize in chemistry for her cutting-edge work determining the molecular structures of complex organic molecules, was born on...
9 May 1997
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ScienceNOW(Science - AAAS)
You Spit, You Die. Here's Why
Spitting in Singapore may get you thrown in jail, but in nature there are far more lethal results. When a caterpillar drools on a corn leaf, the offended vegetable releases...
1 May 1997
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ScienceNOW(Science - AAAS)
A Baker's Dozen Win Top Science Prizes
WASHINGTON, D.C.--National Science Foundation director Neal Lane announced here yesterday the 1997 recipients of the National Medal of Science, the nation's highest scientific honor. Also announced were winners of the...
1 May 1997
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ScienceNOW(Science - AAAS)
Fatal Contraction
Researchers have found that a high-salt diet triggers subtle biochemical changes that can fatally throw off the heart's rhythm in rats with high blood pressure. The findings, reported in tomorrow's...
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