Stamp effect means that when the research topic can be related to some specific things, activities and emotions, the accuracy of inference results will be greatly improved, the reasoning materials are specific, and the reasoning will be easier; Reasoning is more difficult when the material of reasoning is abstract.
According to the definition of appeal, which of the followings doesn't belong to stamp effects:
Archimedes found that the more his body sank, the more water overflowed from the basin. He discovered the law of buoyancy