You have seen this button on your keyboard before. On my Microsoft keyboard that wavy line is in the upper left corner, right next to the number one key.
You probably do not give this wavy, squiggle of a line much thought but it actually has a purpose. This line is called a tilde and, believe it or not, it actually has multiple functions that span a couple of different disciplines. It is actually, sorta, interesting stuff!
I wrote an article that answers the question what does the wavy line on the PC keyboard do? I have it linked below. Check it out if you'd like.

Sometimes I find the perfect image that I wish to use for my project. But unfortunately, my desired photo is embedded in a PDF file and it seems impossible to simply copy and paste into my document.

This article will provide alternatives that may help you capture your desired images.
Read more: http://hubpages.com/hub/How_to_Capture_Images_From_Adobe_PDF_Files

These are metal, water and scratch-resistant and ideal for key rings because they look like actual keys! Fast transfer rates (up to 30MB/s read and 20MB/s write) at affordable prices. 4GB to 32GB starting at $20.