Letters to the Editor
Options for treating addictionAddiction is often seen as a chronic disease, but some long-term studies suggest it can be viewed as a temporary coping problem instead. Bruce Bower presented this alternative view in “The addiction paradox” (SN: 3/22/14, p. 16). “A nice job by Bruce Bower, as usual...
04/19/2014 - 14:00
Climate, Health, Animals
Reviews & Previews
These days, it can be almost impossible to get lost. The creation of affordable smartphones has put personal homing beacons into over a billion pockets and pocketbooks, enabling even the most directionally challenged to locate the nearest Starbucks or find their way around a traffic accident. Yet the technology that enables easy navigation was centuries — even millennia — in the making. ...
04/19/2014 - 09:00
A nerve cell's long, slender tentacle isn’t evenly coated with an insulating sheath as scientists had thought.Instead, many nerve cells in the brains of mice have stretches of these tentacles, called axons, that are naked, researchers report April 18 in Science. The unsheathed feeler can be as long as 80 micrometers....
04/18/2014 - 18:42
Second of two parts (read part 1)When the Robert Redford film Sneakers hit theaters in 1992, most moviegoers had never heard of the Internet. They’d have guessed “World Wide Web...
04/18/2014 - 18:13
Quantum Physics, History of Science
News in Brief
Human cloning to produce stem cells works even with cells from middle-aged or elderly people, scientists report in the June 5 Cell Stem Cell, which appeared online April 17.Last year, scientists described a cloning technique for reprogramming human cells to make stem cells. That technique, known as somatic cell nuclear transfer,...
04/18/2014 - 15:32
In the newsroom, any story about a new scientific method faces an uphill battle. Editors are likely to reject such a story; writers themselves often downplay these stories because they’ve learned that the answer is usually “no.” To those of us who follow science, how scientists do what they do becomes important, and thus worth writing about, only once a new method reveals a novel truth about...
04/18/2014 - 15:30
50 Years Ago
A 17-minute animated movie has been produced, using a cathode ray tube and a movie camera, both controlled automatically by an electronic computer…. The film took two months of research and programming, four hours of computer time, and 2,000 hours of film processing, [at] a cost of about $600 per minute…. The picture is formed on a grid … 184 spots long by 252 spots high. Each spot can be any of...
04/18/2014 - 15:30
Penicillin attacks with a calculated strike, splitting open cell walls. Kanamycin sends a bacterium’s protein assembly line into mayhem. Ciprofloxacin dices a microbe’s DNA into a genetic hash. Like trained snipers, each of these common antibiotics seems to dispatch bacteria with a simple tactic: Target a high-profile molecule crucial to survival and, with a single, clean shot, defeat the whole...
04/18/2014 - 15:00
Guest post by Christopher CrockettNASA’s Lunar Atmosphere and Dust Environment Explorer, or LADEE, mission just ended with a literal bang. Having run out of fuel to safely maintain its orbit, LADEE was purposely steered into a slow, steady nosedive toward the...
04/18/2014 - 14:43
Planetary Science, Astronomy
To a visitor walking down, down, down the white cinder block stairwell and through metal doors into the basement, Building 010A takes on the hushed, mile-long-beige-corridor feel of some secret government installation in a blockbuster movie.It’s not open to sightseers, but it’s far from secret. No jut-jawed military escort leads the way; biologist Shannon Dominick wears a striped sweater as she...
04/18/2014 - 13:55