The usage of physics terminology outside of technically minded people seems limited. That's why I am curious about the phrase being on the same wavelength which as far as I understand is generally understood (and also exists in at least the German language, that's why I ask here and not at English language stackexchange).
What is the origin of this phrase?
Does it refer originally to interference or resonance or...?
What other physics/maths/engineering terms have made it into everyday English language?