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RE: DTube #5: You Can’t Touch Anything!
The human sense of touch is just amazing. Feeling the difference in height between two surfaces that are different by less than .004 inches/0.10mm. A mother can sense a temperature difference of only half a degree on her child's forehead.
It really is, the delicacy of the human body and its receptors are down to unimaginable precision! Thank you for your comment :)