pretender glasses are glasses that do not have a prescription in them. its just simply a plastic lens. Many people where pretender glasses because they like the way they look with glasses.
As far as anyone can tell... yes. There has not yet been found an example of glass that is not glass.I say nay, glass is melted sand, so glass is sand.
Look for a "bug" ... a small logo that's placed in the corner of safety glass to let you know that it really is safety glass (you can see a sample one by looking at the front windshield, which is...
A glass ceiling in an organisation is an unofficially bar to the promotion of certain types of staff, normally women. It is called glass because its not obviously there, but it is in fact.
A glass...
a glass ceiling refers to a barrier between what one wants to acheive and oneself, usually created by society's expectations of what one can or can't do as part of a particular group, race of gender....