(I wonder if this ultraporous stuff could be used to make a emergency mask. It s...

		pvaldes on March 24, 2020 \| parent \| context \| favorite \| on: Picking up glowing hot space shuttle tiles with ba... (I wonder if this ultraporous stuff could be used to make a emergency mask. It seems clear that is not easy to work with, but... Looks like a giant filter for a machine)