News tagged with particle radiation

Earth is getting dustier, model suggests

(PhysOrg.com) -- If the house seems dustier than it used to be, it may not be a reflection on your housekeeping skills. The amount of dust in the Earth's atmosphere has doubled over the last century, according ...

Jan 05, 2011
4.5 / 5 (11) 6 | with audio podcast

Magnetic fields on O-Class stars

The primary method by which astronomers can measure magnetic field strength on stars is the Zeeman effect. This effect is the splitting of spectral lines into two due to the magnetic field's effect on the ...

Dec 20, 2010
5 / 5 (2) 0

NPL builds long range alpha detector

The UK's National Physical Laboratory (NPL) has developed a new portable radiation detector that can assess the safety of potentially contaminated areas far quicker than current methods. The prototype was ...

Nov 01, 2010
5 / 5 (2) 0

A 'magnetic' solution to identify and kill tumors

Though a valuable weapon against cancerous tumors, radiation therapy often harms healthy tissue as it tries to kill malignant cells. Now, Prof. Israel Gannot of Tel Aviv University's Department of Biomedical Engineering is ...

Aug 09, 2010
4.9 / 5 (14) 12 | with audio podcast

Exploring the secrets of dark matter

Even the biggest Star Trek fan would probably have trouble understanding the technical details of the research done by Queen's University Particle Astrophysics Professor Wolfgang Rau of Kingston, Canada.

Feb 18, 2010
3.8 / 5 (9) 7 | with audio podcast

Flipping a photonic shock wave

A team of physicists has directly observed a reverse shock wave of light in a specially tailored structure known as a left-handed metamaterial. Although it was first predicted over forty years ago, this is ...

Nov 02, 2009
4.2 / 5 (5) 1

Do dust particles curb climate change?

(PhysOrg.com) -- A knowledge gap exists in the area of climate research: for decades, scientists have been asking themselves whether, and to what extent man-made aerosols, that is, dust particles suspended ...

Oct 06, 2009
4.6 / 5 (5) 4