Remember about five years ago, when the new hotness in interaction design was to have flashy layers in your website scroll at different speeds, creating a faux-3D effect? The effect was called ...

Very simply, parallax is an apparent motion of an object due to a change in observation position. Let me start with an example. Here are two photos. I took a picture of the cabinet in the background ...

Parallax is a simple concept to understand, but as it relates to riflescopes it’s difficult to explain. According to Merriam-Webster, parallax is the apparent displacement or the difference in ...