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Domain: americanscientist.org
Stories and comments across the archive that link to americanscientist.org.
Stories · 8
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The Future of Time: UTC and the Leap Second
rlseaman writes "UTC ("Coordinated Universal Time") is very close to being redefined to no longer track Earth rotation. Clocks everywhere — on your wall, wrist, phone or computer — would stop keeping Solar time. 'American Scientist' says: 'Before atomic timekeeping, clocks were set to the skies. But starting in 1972, radio signals began broadcasting atomic seconds and leap seconds have occasionally been added to that stream of atomic seconds to keep the signals synchronized with the actual rotation of Earth. Such adjustments were considered necessary because Earth's rotation is less regular than atomic timekeeping. In January 2012, a United Nations-affiliated organization could permanently break this link by redefining Coordinated Universal Time.'" -
Avoiding a Digital Dark Age
al0ha writes to recommend a worthwhile piece up at American Scientist on the problems of archiving and data preservation in an age where all data are stored digitally. "It seems unavoidable that most of the data in our future will be digital, so it behooves us to understand how to manage and preserve digital data so we can avoid what some have called the 'digital dark age.' This is the idea — or fear! — that if we cannot learn to explicitly save our digital data, we will lose that data and, with it, the record that future generations might use to remember and understand us. ... Unlike the many venerable institutions that have for centuries refined their techniques for preserving analog data on clay, stone, ceramic or paper, we have no corresponding reservoir of historical wisdom to teach us how to save our digital data. That does not mean there is nothing to learn from the past, only that we must work a little harder to find it." -
Sound To Power Space Probes
An anonymous reader writes "The old adage that 'no one can hear you scream in space' seems to have its own variant when Los Alamos scientists announced today their latest designs for the 'traveling wave engine', a derivative of the classic, pistonless Stirling device. Because it uses helium as an oscillating gas in a long tube, the design works kind of like a high-pitched loudspeaker at maximum efficiency. Another description combines a refrigerator and whistle to make an engine." -
A Timeline Of Spam And Antispam
Haak writes "American Scientist has a fine article by Brian Hayes summing up the history of spam and proposed measures to deal with it." A shorter article along the same lines is running at The Economist. -
The Post-OOP Paradigm
Kallahar writes "American Scientist has an article up about Computing Science: The Post-OOP Paradigm. The article has a great overview of how OOP works, and then goes on to a brief outline of the possible successors to OOP such as Aspect, Pattern, and Extreme Programming. Also a pretty picture of OOP Spaghetti." -
The Post-OOP Paradigm
Kallahar writes "American Scientist has an article up about Computing Science: The Post-OOP Paradigm. The article has a great overview of how OOP works, and then goes on to a brief outline of the possible successors to OOP such as Aspect, Pattern, and Extreme Programming. Also a pretty picture of OOP Spaghetti." -
"Killer Flu" Emerging On Both Sides of the Pacific
mallorean writes "The spread of SARS ( Severe Acute Respiratory Syndrome ) worldwide is just about making the headlines. The WHO has issued an advisory. American Scientist had two very timely articles relevant to SARS in the current issue. The first is about the rapidly growing antibiotic resistance in bacterial diseases and the origin and possible sources of this resistance. The second article talks about Type A Influenza and the possibility of a world pandemic similar to the 1918 Global Flu Pandemic. The transmittable nature of SARS, the lack of epidemological information and its severe resistance to antibiotics seems tailor made to fit the scenario outlined in the second article ( it even originated in the far east and is a strain of avian flu )." Read below for a related link.jake-in-a-box points to a New York Times article which says that the illness "has affected hundreds in China and Southeast Asia, and now spread to Vancouver, BC. It does not respond to antibiotics or antivirals and apparently nobody has fully recovered yet. Transmission appears to be via aerosol droplets - coughs, sneezes etc."
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"Killer Flu" Emerging On Both Sides of the Pacific
mallorean writes "The spread of SARS ( Severe Acute Respiratory Syndrome ) worldwide is just about making the headlines. The WHO has issued an advisory. American Scientist had two very timely articles relevant to SARS in the current issue. The first is about the rapidly growing antibiotic resistance in bacterial diseases and the origin and possible sources of this resistance. The second article talks about Type A Influenza and the possibility of a world pandemic similar to the 1918 Global Flu Pandemic. The transmittable nature of SARS, the lack of epidemological information and its severe resistance to antibiotics seems tailor made to fit the scenario outlined in the second article ( it even originated in the far east and is a strain of avian flu )." Read below for a related link.jake-in-a-box points to a New York Times article which says that the illness "has affected hundreds in China and Southeast Asia, and now spread to Vancouver, BC. It does not respond to antibiotics or antivirals and apparently nobody has fully recovered yet. Transmission appears to be via aerosol droplets - coughs, sneezes etc."