| An aerogel is a porous network of silica strands with diameters of a few nanometres. |
| The local iron ore gives the teapot a porous molecular structure thus allowing the aeration of the tea inside. |
| One easy thing homeowners can do is disconnect their downspouts, redirecting rainwater from roofs out onto porous ground. |
| It's not recommended to roll paint on an acoustic ceiling, as it is very porous. |
| By waterproofing the porous concrete, he eliminates the wet surface conditions that cause mildew. |
| These aluminosilicates form porous structures whose cavities can act as storage for ions and molecules. |
