I am wondering why microwaves don't escape through the door?
The most common answer seems to be that the wavelength of microwave ovens is about 10-15cm which is much larger than the 1-2mm holes in the grille. But isn't the wavelength of light really just within a vector space of mathematics describing its motion not a description of the actual particle which remains point like? (Well - point like if you could find it in the probability density). We are not really looking at waves in reality as the have no amplitude - making a light wave from front view always look like a dot - and dots would fit through the holes in microwave...wouldn't they?