News

As was pointed out in my previous communication (see NATURE, Aug. 9, p. 201), when light is scattered by liquids or crystals, there can be observed a splitting of spectral lines which may be ...
BO: For coastal decor it works well to choose lighting with an organic feel, like wood beaded, woven, or rattan fixtures. In more modern spaces, I often pick lights with clean lines, geometric ...
Improving light and heat spectra measurements Date: October 30, 2013 Source: Physikalisch-Technische Bundesanstalt (PTB) Summary: Whether you want to investigate objects in space, characterize the ...
Blasting everything with one bright light won’t do. Here’s how to create a multilayered lighting plan like the pros do. By Tim McKeough When you’re renovating a kitchen, it’s easy to get ...
Spectral lines: O: Blue: 28,000–50,000: Ionized and neutral helium, weak ... if you look at the Sun’s visible-light spectra, the hydrogen lines are weak. The Sun is a relatively cool (5,800 ...