News tagged with grains

Why cement tends to thicken

Researchers at the ETH Zurich have unraveled the microscopic mechanism behind shear thickening: the increase in viscosity with speed observed for dense particle suspensions under flow. The study has a direct ...

Oct 01, 2013
4 / 5 (4) 5 | with audio podcast

Pulsating dust cloud dynamics modeled

The birth of stars is an event that eludes intuitive understanding. It is the collapse of dense molecular clouds under their own weight that offers the best sites of star formation. Now, Pralay Kumar Karmakar from the Department ...

Sep 12, 2013
5 / 5 (2) 0 | with audio podcast

Tiny dust particles in the solar system

(Phys.org) —In our solar system, dust particles are abundant, created by asteroid collisions and by the evaporation of comets. These particles are the source of the zodiacal light, a diffuse glow in the ...

Sep 09, 2013
5 / 5 (6) 4 | with audio podcast

Global first as Witsies split pollen

Wits researchers have become the first to cut sections through pollen grains and make it possible to view a three dimensional image of the internal wall. This positions them to determine how the characteristics ...

Sep 06, 2013
5 / 5 (3) 1

German grain harvest higher despite floods

Germany, Europe's second-biggest grain producer after France, reported a 3.0-percent increase in its harvest this year, despite the bad weather and flooding, data showed on Thursday.

Aug 22, 2013
5 / 5 (1) 0