What Is Déjà Vu?

It’s Okay To Be Smart discusses one of the most mysterious aspects of everyday life.

What Is The Speed of Dark?

What’s faster, light or dark? VSauce breaks it down.

How Far Can Legolas See?

Legolas may be a ridiculously pretty fellow with insane archery skills, but his vision isn’t quite as good as he lets on. MinutePhysics breaks it down.

What Is Gravitational Lensing?

SciShow Space explains how it’s a matter of perspective.

What Is The Resolution Of The Eye?

VSauce shows why your HD television might be overrated.

Distortions

VSauce shows how your eyes are playing tricks on you.