Sentences with phrase «through powder samples»
Not exact matches
When they added a few small drops of sunflower oil to the powder samples, they observed the liquid fat moving through pores and tiny spaces in the chocolate very quickly, most likely as a result of capillary action — the movement of a liquid within porous material due to the forces of adhesion, cohesion, and surface tension.
http://www.sciencemag.org/
Through sample analysis, Cahill first discovered that 21 percent of the initial dust cloud contained finely powdered, highly caustic cement — thought to be responsible for the «9/11 cough.»