News tagged with light spectra

Scattered light could reveal alien atmospheres

The light scattered off distant worlds could help reveal details about their atmospheres that no other method could uncover, scientists find.

Space & Earth / Astronomy

created Feb 20, 2012 | popularity 4.8 / 5 (13) | comments 0 | with audio podcast

Blue light irradiation promotes growth, increases antioxidants in lettuce seedlings

The quality of agricultural seedlings is important to crop growth and yield after transplantation. Good quality seedlings exhibit characteristics such as thick stems, thick leaves, dark green leaves, and large white roots. ...

Biology / Other

created Dec 12, 2011 | popularity 5 / 5 (1) | comments 2

Researchers unravel the mystery of quantum dot blinking

(PhysOrg.com) -- Research by Los Alamos scientists published today in the journal Nature documents significant progress in understanding the phenomenon of quantum-dot blinking. Their findings should enhanc ...

Nanotechnology / Nanophysics

created Nov 09, 2011 | popularity 5 / 5 (12) | comments 1 | with audio podcast

Scientists develop the most advanced computer model to-date of the scattering of polarized light from chiral molecules

(PhysOrg.com) -- An international research team has described the first calculations of Raman optical activity (ROA) spectra using coupled-cluster theory – one of the most reliable quantum chemical methods ...

Chemistry / Analytical Chemistry

created Oct 04, 2011 | popularity not rated yet | comments 0

Energizing the Filaments of NGC 1275

When examining clusters of galaxies, astronomers often find massive elliptical galaxies lurking at the centers. In some of these, long filaments of gas and dust extend outwards from the core. One of the best ...

Space & Earth / Astronomy

created May 11, 2011 | popularity 4.2 / 5 (5) | comments 17

Using 'dark channel' fluorescence, scientists explain how biochemical substances carry out their function

Spectroscopic techniques are among the most important methods by which scientists can look inside materials. They exploit the interaction of light waves with a given sample.

Chemistry / Analytical Chemistry

created Aug 08, 2010 | popularity 5 / 5 (3) | comments 0

Cosmic archaeology: Astrophysicists use new spectrographs to look far back into the history of the universe

(PhysOrg.com) -- The distant past of the universe is moving closer. Astronomers are using special spectrographs to investigate galaxies in the depths of the universe as part of the Sloan Digital Sky Survey ...

Space & Earth / Astronomy

created Oct 13, 2009 | popularity 3.9 / 5 (11) | comments 2