- If I want to use a piece of plate (float) glass to lap a piece of steel, would it make sense to cover the glass with contact paper, or something similar, prior to applying the lapping compound, in order to prevent abrasion of the glass?
- What is hardness? Strength of the molecular attraction? Inherent property of an individual molecule?. What is it? Seems like this is something I should have learned in 6th grade.
- Silicon carbide (or flint, garnet, AL2O3, etc.) sandpaper only lasts a short time when sanding relatively soft wood (or metal, for that matter). Aside from any mineral content in the wood, why? Is it only a function of the abrasive paper's bonding material? The abrasive particle's tendency to fracture? Will an infinite amount of soft material always wear down a limited amount of a harder material? Could a heavenly cotton candy machine produce enough coton candy to wear down the Hope Diamond?
I've an inquiring mind, but, contrary to their slogan, the National Enquirer is _not_ answering these pressing questions. At least _they're_ responding to my emails. CNN, MSNBC, et. al., aren't replying at all - I'm not sure if it's some sort of conspiracy, or that they're ashamed to admit that they don't know the answer.
R, Tom Q.