News tagged with light wavelength

Interstellar dust and the sun

(Phys.org)—The space between stars is not empty. It contains copious but diffuse amounts of gas and dust; in fact about 5-10% of the total mass of our Milky Way galaxy is in interstellar gas. About 1% of ...

Nov 12, 2012 5 / 5 (3) 17 | with audio podcast

Why are so many fairy-wrens blue?

(Phys.org)—Researchers have long tried to explain the enormous diversity in colour of birds, and a new study is giving insights into why the humble fairy-wren, a colourful Australian bird, is radiantly ...

Nov 01, 2012 4.7 / 5 (3) 0 | with audio podcast

Scientists engineer novel DNA barcode

Much like the checkout clerk uses a machine that scans the barcodes on packages to identify what customers bought at the store, scientists use powerful microscopes and their own kinds of barcodes to help ...

Sep 24, 2012 5 / 5 (3) 0 | with audio podcast

Researchers develop printable lasers

(Phys.org)—A way of printing lasers using everyday inkjet technology has been created by scientists. The development has a wide range of possible applications, ranging from biomedical testing to laser arrays ...

Sep 19, 2012 4.9 / 5 (9) 1 | with audio podcast