What is does Angstrom mean?

Hi There!

I've read through your posts. Some of them are pretty funny with the back and forth stuff. Anyway, also glad you're here because all of you are very knowledgeable!

I came across some thing that was interesting:
"Take one tablespoon of copper in the mornings, and in the afternoon you will take one tablespoon of zinc and one tablespoon of silver. These minerals must be angstrom sized, in liquid form, or it wont be effective."

Are they referring to colloidal forms of copper and silver, or is angstrom something else? Please help me to understand.

Thanks!