News tagged with x-ray diffraction

Nano-ruler sets some very small marks

The National Institute of Standards and Technology has issued a new ruler, and even for an organization that routinely deals in superlatives, it sets some records. Designed to be the most accurate commercially available "meter ...

Sep 22, 2009 not rated yet 0

Earthquake waves: How do they spread?

Propagation of earthquake waves within the Earth is not uniform. Experiments indicate that the velocity of shear waves (s-waves) in Earth’s lower mantle between 660 and 2900 km depth is strongly dependent on the orientation ...

Apr 13, 2009 3.7 / 5 (3) 0
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