The supposed thrust of the EmDrive is very small. But the device has a lot of wires with current that can be equivalent to an electromagnet, and very hot parts that can create air currents, and ...<p>If you have not done few physics labs, it&#x27;s easy to underestimate the measurement problems and the level of noise in experiments.<p>Most of the Physics community thinks that this is an experimental error. One symptom is that at lunch in a Physics department nobody talks about this. If this were real it would be a groundbreaking result because it breaks some of the most fundamental Physics laws.