Mechanical Pencil facts
While investigating facts about Mechanical Pencils and Mechanical Pencil Lead, I found out little known, but curios details like:
Electronics corporation Sharp invented the modern mechanical pencil, and even got its name from its "Ever-Ready Sharp" pencil.
how mechanical pencils work?
The "Space Pen" developed for NASA was substantially cheaper than the mechanical pencils previously used ($2.39/per vs $128.89/per)
What mechanical pencil is best for drawing?
In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what mechanical pencils are number 2. Here are 5 of the best facts about Mechanical Pencil Lead Sizes and Mechanical Pencils Walmart I managed to collect.
what mechanical pencils are #2?
-
Mechanical pencils date back to the 18th century, with some designs being patented in the 19th and 20th centuries.
-
The earliest example of a mechanical pencil was found aboard the wreckage of HMS Pandora, which sank in 1791
-
Rhat in 1965, NASA bought 34 mechanical pencils for a total of 4,382.50$
