How to Build Your Own Quantum Entanglement Experiment (2013)
This is really fascinating. It would be cool if we had an online group or forum that attempted to brainstorm the simplest&#x2F;cheapest&#x2F;(safest?) ways of performing interesting  experiments like this that you wouldn’t think you could do at home. I’ve read about a few experiments for determine the speed of light using a microwave that I thought were pretty cool.