PowerPoint is a platform used for making a presentation. Persons will create their presentations with pictures, shapes, and PowerPoint built-in ideas that can make your presentation look stylish and ...

Visual motion is an important source of information for separating objects from their backgrounds. A spider camouflaged against a branch, for instance, immediately loses its invisibility once it ...

If you want your friend to see you in a crowd, you wave your arms to stand out. As University of Rochester researchers found, one reason why this works is that the brain suppresses the background, ...