99922201
submission
al0ha writes:
This study seems to say that exposure to LED light temp higher than 3000K suppresses melatonin because it contains increased blue light, and at least one city has gone to the expense of removing higher temp LED lights and replacing them with 3K lights. I'm confused — as a photographer I know sun light is ~ 5500K — 6500K depending on viewing standard.
17479596
submission
al0ha writes:
In this week's issue of the journal Nature, a research team led by scientists at the California Institute of Technology (Caltech) has taken an important step toward understanding just how this kickoff occurs by beginning to dissect the neural circuitry of fear. In their paper, these scientists—led by David J. Anderson, the Benzer Professor of Biology at Caltech and a Howard Hughes Medical Institute investigator—describe a microcircuit in the amygdala that controls, or "gates," the outflow of fear from that region of the brain.
Read the Paper if you have No Fear; of real science. :-)
9880024
submission
al0ha writes:
This is an excellent piece well worth the read for all /.ers
"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." — Kurt D. Bollacker PhD
7857642
submission
al0ha writes:
Techniques recently invented by researchers at the California Institute of Technology (Caltech)—which allow the real-time, real-space visualization of fleeting changes in the structure of nanoscale matter—have been used to image the evanescent electrical fields produced by the interaction of electrons and photons, and to track changes in atomic-scale structures.
Further info by viewing the story link, also covered in the Dec 17 issue of Nature.
7307126
submission
al0ha writes:
In the first video showing the auroras above the northern latitudes of Saturn, Cassini has spotted the tallest known "northern lights" in the solar system, flickering in shape and brightness high above the ringed planet.
The new video reveals changes in Saturn's aurora every few minutes, in high resolution, with three dimensions. The images show a previously unseen vertical profile to the auroras, which ripple in the video like tall curtains. These curtains reach more than 1,200 kilometers (750 miles) above the edge of the planet's northern hemisphere.
