2
votes
1answer
30 views

Having nano-scale holes in metal, possible today?

I am considering to design a gas filtering system that is based on the size of gas molecules. Basic idea is to flow mixed gas in a long pipe, and to allow CO2 to get of pipe through nano-size holes ...
0
votes
1answer
2k views

what's the size of carbon dioxide [closed]

First of all, I'm not good at English, so if you guys can use simple English it will help. My question is very simple. How big is a carbon dioxide ($\mathrm{CO}_2$) molecule, i.e. the width, length ...