May 25, 2011 |
As residents of Joplin, Mo., continued digging out from Sunday's deadly tornado, researchers prepared to visit the stricken city to assess the storm's intensity. Coming only three weeks after an unprecedented series of twisters wrought destruction across the Southeast, many were wondering whether the events were related and whether more severe storms were in store. Here are answers to some questions about the science of tornadoes. Was there a connection between Sunday's tornado and the ones in April?
CALIFORNIA | LOCAL
December 27, 2013 |
As 2013 draws to a close, it is headed for the record books as the driest year in downtown Los Angeles since 1877, when official measurements began. Only 3.60 inches have fallen at the National Weather Service station at USC since Jan. 1, about half an inch less than was recorded in 1953 and 1947, which until now had tied for the lowest rainfall. With sun, sun and more sun in the forecast for the remaining few days of the year, meteorologists say there is virtually no chance of wet weather to undo the new record.
August 19, 2012
Re "Oh, sweet mystery," Opinion, Aug. 16 I had the pleasure of reading evolutionary biologist David P. Barash's Op-Ed article. As a scientist myself, and one who dabbled energetically in the history of science before devoting myself fully to scientific research, it is rare that I find something in the paper regarding policy or the teaching of science with which I agree wholeheartedly. There is another powerful force to draw in students: We can try to impart a sense of the possibility to do good works in the world; not in the sense of personal glory but in the great tradition of service to humankind.
CALIFORNIA | LOCAL
May 1, 2013 |
While Jennifer Clay was at home taking an online exam for her business law class, a proctor a few hundred miles away was watching her every move. Using a webcam mounted in Clay's Los Angeles apartment, the monitor in Phoenix tracked how frequently her eyes shifted from the computer screen and listened for the telltale sounds of a possible helper in the room. Her computer browser was locked - remotely - to prevent Internet searches, and her typing pattern was analyzed to make sure she was who she said she was: Did she enter her password with the same rhythm as she had in the past?
August 16, 2012 |
I have been teaching and doing research at the university level for more than 40 years, which means that for more than four decades, I have been participating in a deception - benevolent and well intentioned, to be sure, but a deception nonetheless. As a scientist, I do science, and as a teacher and writer, I communicate it. That's where the deception comes in. When scientists speak to the public or to students, we talk about what we know, what science has discovered. Nothing wrong with this.
June 8, 2012 |
Researchers have figured out how a tiny tropical crustacean packs an outsized punch. And they are using that knowledge to engineer super-durable materials that could protect troops in the line of fire, among other useful applications. The peacock mantis shrimp, scientific name Odontodactylus scyllarus , isn't actually a peacock, a mantis or a shrimp. It's a stomatopod, a member of a group of aggressive ocean-dwellers that use outsized appendages to smash, slash or spear their heavily shelled prey.
February 11, 2014 |
Yearly mammography screenings for women ages 40 to 59 do not reduce breast cancer deaths, even though they make a diagnosis of illness more likely, according to a long-term study of nearly 90,000 Canadian women. The research , published Tuesday in the British Medical Journal, is the latest in a series of studies that question the value of annual breast X-rays for pre-menopausal women and whether too many women are being "overdiagnosed" by the popular test. "We found absolutely no benefit in terms of reduction of deaths from the use of mammography," said study leader Dr. Anthony Miller, an epidemiologist at the University of Toronto's Dalla Lana School of Public Health.