Recent content by hemi426

I am trying to find a gas or liquid that likes to absorb the lower portion of the IR sperctrum (700–1400nm) but let's visible light pass (380-750nm). It can be a liquid or gas because it is going in a sealed container. I know that water absorbs infrared to a certain extent and that's why the...

Can anybody point me in the right direction?

Hi, Its my first time so forgive me if I miss something. I know a bit about physics. Protons +1, electrons -1, and neutrons have a charge of 0. Opposite charges attract and similar charges repel. Van der waals force deals with electrostatic interactions between molecules. We all know that...