News tagged with surface area

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Zeolite synthesis made easy

Zeolites are porous materials with perfectly regular pores and high surface area that can act as molecular sieves. This property has led to important applications including the purification of air or water such as the contaminated ...

Dec 12, 2011
3.4 / 5 (5) 0 | with audio podcast

How to count nanoparticles

Nanoparticles of a substance can be counted and the size distribution can be determined by dispersing the nanoparticles into a gas. But some nanoparticles tend to aggregate when the surrounding conditions change. Scientists ...

Oct 11, 2011
4 / 5 (1) 0

Earth from space: Irene's eye

This week we look at two images taken simultaneously with different Envisat sensors of Hurricane Irene, which struck the US east coast last week.

Sep 02, 2011
not rated yet 0

Efficacy of cool roofs varies from city to city

(PhysOrg.com) -- While cool roofs and pavements have been found to cool the planet by preventing energy from being radiated back into the atmosphere, previous studies have not accounted for atmospheric feedbacks ...

Jul 27, 2011
4.3 / 5 (4) 5 | with audio podcast