CCD, or charge coupling devices

Over the years, photography tools have changed. You can see a timeline here.  Photos of the universe began to be taken with giant telescopes, and it wasn't until 1975 that the first CCD camera was created.  Now, instead of photographs that were 3' x 4', we had the ability to digitally store images.

Today, we are going to look at that process.  Go to here and we'll explore the mechanism behind it all--the photoelectric effect of Albert Einstein.