For many, Quantum Entanglement just frustrates people who try to understand it. Even Albert Einstein was skeptical about this property in quantum mechanics. However, this video from University of New South Wales (UNSW) eLearning Quantum Around You series explains the subject in beautiful simplicity. Professor Andrea Morello with the School of Engineering gives a clear explanation of the phenomenon.
In a nutshell, quantum entanglement suggests that a particle in one spot can instantly influence a particle very far away. The concept can be oversimplified into theoretical teleportation.