|
Images of ScienceDecember 20 & 27, 1997 | Volume 152 | Number 24 & 25 Cover: These containers hold nanocrystals of cadmium selenide suspended in a liquid. Exposed to ultraviolet light, the crystals fluoresce in different colors, depending on particle size. Such imaging is an important part of an effort to enhance the role of visualization in scientific research. (Photograph © Felice Frankel) |
Features:
TimeLine
Food for Thought
Nations Draft Kyoto Climate Treaty
Negotiators meeting in Japan drafted a treaty that would set binding limits on greenhouse gas emissions for industrial nations.
Electric diode tunes in to plastic
A basic electronic component made partially of plastic can be modified to exhibit a wide range of current-carrying capacities.
New findings erode the credibility of the hypothesis that Earth is bombarded by thousands of house-size snowballs each day.
Having a twin with breast or testicular cancer signals an increase in a person's risk of these diseases.
Deepening insight into solar outbursts
Computer simulations and data from a spacecraft illuminate the magnetic interactions that generate high-speed ejections from the sun's atmosphere.
Let's repeat: Mutation gums up brain cells
Investigators have created mutant mice with an illness similar to Huntington's disease.
Fine-tuned plant response to insect attack
Chewed-up plants send out chemical signals that attract insects of the right type to combat specific pests.
Teenage girls who have a strong need for social contact and peer acceptance are most likely to begin smoking cigarettes.
Small comet theory faces barrage from foes
Even fraternal twins may share cancer risk
Teens show sex-linked pull to cigarettes
Research Notes:
Earth Science
Pollution surge from new Chinese cars
Adding 400 million cars to China's roads would increase pollution across much of the Pacific.
California volcano starts to stir
Earthquakes rattle a volcanic site in eastern California near Mammoth Lakes. Environment
Hanford tanks: Leaks reach groundwater
Radioactive liquids leaking from storage tanks have joined deliberately released wastes in contaminating groundwater at the Hanford Reservation.
Fishy PCBs shorten menstrual cycle
Scientists find signs of a pollutant's subtle hormonelike influence on human reproductive cycles.
Articles:
The Art of Scientific Photography
Bringing an artist's eye to the realm of imaging Enhancing the role of visualization in scientific research provides a powerful approach to learning, teaching, and communicating science. The Internet offers scientific facts and fun Join the Science News guided tour of the World Wide Web. A tale noir of science writing and artificial evil A fictional mystery story explores what happens when a science writer tangles with a power-hungry computer.
Departments:
Letters:
For More Information on this Week's Articles:
Further
Readings 
Sources: People
to Contact
copyright 1997 Science Service
