Understanding Quantum Mechanics #6: It’s not just a theory for small things

To check out the physics courses that I mentioned (many of which are free!) and to support this channel, go to and create your Brilliant account. The first 200 will get 20% off the annual premium subscription. In this video I explain that quantum mechanics is not merely a theory for short distances, as it is often portrayed. Quantum mechanics applies to all objects, regardless of size. Indeed, quantum effects are necessary to explain many rather mundane observations: the sun s