Chipworks: Silicon Art
Chipworks is a "company that analyzes the circuitry and physical composition of semiconductors, photonics and electronic systems." During the company's work, some chips were found to have microscopic artwork hidden in the silicon. Although these features do not change a chip's performance, they simply express the creativity of the designers. Three large galleries of images are presented on this Web site, some with magnifications up to 500 times. Each picture is accompanied by a short description
International Design Contest 2002
The 2002 International Design Contest, held at the Massachusetts Institute of Technology, concluded on August 16. All information pertaining to the robot building competition is posted on this Web site. A standard component kit was given to each team to design their robots. An inventory of this kit, CAD models of the parts, and an overview of the control systems are given online. Many video clips can be viewed, including one that shows "the entire contest from beginning to end." Other material n
Final Report of the Commission on the Future of the U.S. Aerospace Industry
Since its first meeting in November 2001, the Commission on the Future of the US Aerospace Industry has worked to prepare this final report on the industry, its position in the global economy, and its application to national security. The report was released on November 18, 2002, and can be viewed in its entirety at this Web site, along with a fifteen minute video presentation from the commission's chairman. The 300+ page report is divided into nine chapters, each with a central theme and series
What is Climate Change?
This site is offered by Canada's Natural Resources Department. The main page describes the basics of the phenomenon, while the links tell about the impact of climate change on health and safety, communities, land resources, water resources, and coastal regions. Although specific to Canadian regions, the site will give visitors from all over a good introduction to the potential problems of global warming.
Learning Technologies Project
The NASA Learning Technologies Project (LTP) showcases many initiatives that "incorporate NASA content with revolutionary technologies or innovative use of entrenched technologies to enhance education in the areas of math and science." The Education Resources section features three software titles that can be freely downloaded, mainly consisting of three-dimensional visualization activities for planets and the solar system. Extensive information about current projects under development is given,
Alaska Fisheries Science Center: Understanding Fish Bycatch Discard and Escapee Mortality
The Alaska Fisheries Science Center's (AFSC) latest Quarterly Research Report features research on fish bycatch discard and escapee mortality conducted by the AFSC. Readers will find a summary article for the report on the main Web page. The entire 9-page report details "systematic bycatch research conducted over the past 10 years in the laboratory of the AFSC's Fisheries Behavioral Ecology Group," and may be downloaded as a PDF document. The Web site also contains links to detailed reports from
Public Education Acid Rain Lesson Plan
Offered by The National Park Service Air Resources Division, this Web site includes a series of five 1-2 hour educational activities related to understanding acid rain and air quality for children grades six through eight. The very simply designed site includes lessons on: The pH scale; Understanding the difference between an acid and a base; Understanding what gases contribute to acid rain; How acid rain is measured and monitored in the US; and Understanding weather maps and the importance of s
National Marine Mammal Laboratory: Aerial and Land-based Surveys of Stellar Sea Lions
The National Marine Mammal Laboratory (NMML) conducts research on marine mammals for the National Marine Fisheries Service and the National Oceanic and Atmospheric Administration, with a particular focus on marine mammals in the Pacific Northwest and Alaska. This Web site contains a report on Stellar sea lion survey research -- part of NMML's Alaska Ecosystem Program. The report may be viewed online or downloaded as a PDF file. The site also includes links to other NMML Web pages for more inform
Parkinson Disease - Cranial Nerves Exam - Trigeminal (CN V) Nerves Sub-exam - Patient 4
This 76-year-old man developed tremor of his right arm and leg 15 years ago. It has increased in severity over the years. A shaking right hand affects his writing, dressing and drinking. Occasional drooling, difficulty rolling over in bed and a soft voice at times are also issues. The tremor has affected his writing and he has mild difficulty with buttons and zippers. He spills when he uses his right hand to drink. He has occasional drooling and slight difficulty rolling over in bed. His voice
IPv6: The Next Generation Internet!
Internet Protocol Version 6 (IPv6) is a new standard that will gradually replace the aging IPv4. Spurred by problems with the previous version, its development has the advantage of assigning each device connected to the Internet with its own unique address, as well as several other features. This site is an information page with plenty of resources and links for people to learn about the new protocol and how the transition between IPv4 and IPv6 will occur. A list of applications already using IP
Site Libre Savoirs: Mécanique des milieux continus
Domaine: Science des matériaux, mécanique, génie mécanique
L\'enseignement présente les concepts fondamentaux de la Mécanique des milieux continus qui sont mis en oeuvre sur des exemples simples en Mécanique des fluides et en Mécanique des solides. La démarche se concentre sur les milieux continus tridimensionnels et sur les notions de contraintes et de déformations, présentées en quatre étapes :
The New York Botanical Garden: International Plant Science Center
In "combining modern technologies with a century of field and laboratory research," the New York Botanical Garden's International Plant Science Center "is one of the few institutions worldwide with the resources, collections, and expertise to develop the information needed to understand and manage plant diversity." This website grants considerable access to resources from the Center, including numerous plant databases, digitized rare botanical books, online access to the herbarium collections, a
The Dana Centre
London's Science Museum and its partners have recently opened the Dana Centre, a "dynamic events space [that] will bring the hottest themes in modern science to adults-only audiences through a programme of bold and innovative events." The Dana Centre website allows virtual visitors (over the age of 18) to "take part in exciting, informative and innovative debates about contemporary science, technology and culture."Live webcasts and online discussions cover a constantly changing menu of topics, f
British Society of Scientific Glassblowers
In this website, the British Society of Scientific Glassblowers (BSSG) describes its work to organize meetings, present papers, and encourage the enhancement of knowledge about glass and the related equipment. Visitors can read council reports, learn the rules of the society, and find out how to become certified in the science of glassblowing. The site features past and future symposiums held at one of the Society Sections, which includes various places in the United Kingdom as well as overseas.
National Environmental Data Index
The National Environmental Data Index is maintained by the National Atmospheric and Oceanic Administration Environmental Information Service. The service provides a full text search of information from twelve governmental agencies including the US Department of Agriculture, Department of Energy, Department of Interior, Environmental Protection Agency, and NASA. Users can choose to search from all or individual agencies, by type of information, and by several specific subjects. Results display th
The NASA Sci Files
The NASA Sci Files website "is designed to enhance and enrich the teaching of mathematics, science, geography, and technology in grades three through five." Educators can find the television broadcast schedule, past episodes for free, and innumerable in-class and at-home activities. Students can solve NASA problems, find animations and videos, discover experiments they can do at home, and much more. Parents can find out why and how they can become involved in exciting their children about scienc
NPR: Titanic Baby
This Web site contains an audio file of a story broadcast on National Public Radio earlier this month. The broadcast relates the poignant story of a four-year effort to identify the exhumed body of a 13-month-old child who died in the Titanic disaster. A metal medallion buried with the body serendipitously preserved a bit of the wrist bone, from which forensic scientists could extract mitochondrial DNA and eventually find the child's living relatives.
The following websites provide a quick review of prion research in the news. Prions, short for "proteinaceous infectious particles," are responsible for Creutzfeldt-Jakob Disease (CJD), mad cow disease, scrapie disease, chronic wasting disease, and other deadly brain diseases. The first website, a Science Update from the journal _Nature_, reports on an intriguing study published earlier this year that found genes in some human populations offer protection from prion diseases, possibly in respons
IBM: Electrochemical Technology in Microelectronics
The current issue of the bimonthly IBM Journal of Research and Development features articles on electrochemical technology in microelectronics. Most of the articles address some of the issues that have arisen in this rapidly expanding field, especially as the dimensions of the features of microelectronic components have decreased. Other articles discuss cache prefetching, logic-based embedded DRAM (eDRAM), and register-renaming mappers for IBM POWER4 processors. Members of the IBM technical comm
Dedicated Outdoor Air Systems
Engineers at Pennsylvania State University have devised an air conditioning system that is more efficient than current standards and is highly resistant to dangerous airborne microbes such as anthrax. Because the Dedicated Outdoor Air System (DOAS) does not use recirculated air, a letter contaminated with anthrax would not spread throughout the building. A detailed technical overview of the concept is given on the DOAS home page, as well as an assessment of its benefits over traditional air cond