A lot.
a lot
The printed paper would be treated as blank paper by the laser. Otherwise, preprinted forms, etc, couldn't be used - which they can!
I've always though it was printed on thin paper so that it wouldn't be so cumbersome. My hubby's KJV Bible is well over 1,000 pages, and if it were printed on normal paper I'd suppose it would be 4-5 times thicker.
This can depend on the printer, but normally the printed side is face up, you insert it printed side that you can see.
A print source is a source printed on paper. EX: a book.
Several hundred thousand, at the bare minimum. As of this writing, the English section of Wikipedia alone has 3.2 million pages. Some of these are small enough that you could fit 10 on a page, but many more of them would take two to three pages each.
You would have to use photographic paper that is sensitive to light.
There are many competing companies that will offer stationary supplies customized for your small business. For general letterhead paper a local hardware store may contain those items cheapest. For customized business letterhead printed paper it would be easiest and cheapest to pursue an online vendor.
The history of space exploration would come in several volumes. Not one book, but a number of them. Wikipedia has an article that will help you get started. A link is provided. Begin by looking at the table of contents of that Wikipedia article.
Phenolic paper has multiple purpose. However, its main use is to make printed paper circuits which can assist in producing new electronic parts as well as new circuit boards.
The perimeter of the printed part of the page would be 29 inches.
The Bank of England does not publicise that sort of information since it would make things a little easier for counterfeiters however, it is made from a mixture of paper and linen.