Was there was some scientific analysis done? I would have assumed that analysis would be fairly simple - there was no vacuum pump attached, no way to drain the milk and that the volume 'consumed' exceeded the volume of the statue, that an SI spoon was used and that the milk was milk. Not exactly all that difficult to check out.
Surely some scientists of repute did check it out. 24 hours or longer in the case of some statues. Why the relative dearth of information. I googled "milk miracle" "scientific investigation (and other such words)" and got a page and a bit.
Did science presume hoax/illusion and not bother?
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