Everyday Optical Illusion

Human beings are used to being on the ground, standing right side up. So when you view the world from a different perspective, such as from aerial photographs, things often don't look quite right. Minute Physics explains a common optical illusion used to make maps easier to read:

Thanks to Skillshare for supporting this video: http://skl.sh/MinutePhysics for 2 free months! This video is about a multistable perceptual illusion, similar to the hollow face illusion, whereby maps or aerial or satellite photos look upside down/inside out, ie, concave (valley) parts look convex and convex (mountainous) parts look concave.

Teleportation Explained

For those curious as to the explanations of the many tools at the disposal of the magician for accomplishing miracles, this is not one of them. But very interesting nonetheless. 

Support me on Patreon: http://www.patreon.com/minutephysics Previous video on No Cloning: https://youtu.be/owPC60Ue0BE How to teleport Schrödinger's cat: this video presents the full quantum teleportation procedure, in which an arbitrary qubit (spin, etc) is teleported from Alice to Bob by way of a pair of particles entangled in a bell (EPR) state and the transmission of information via a classical channel.