Quote:
Picture a comb made out of playdough..... If you push on the playdough with your thumb... it would push out on one side of the comb and in at the corresponding other side of the comb.
That is the idea behind a thumbprint. ... I think the terms would be more like concave and convex (sorry, just the math nerd in me
showing itself
)
Picture a comb made out of playdough..... If you push on the playdough with your thumb... it would push out on one side of the comb and in at the corresponding other side of the comb.
That is the idea behind a thumbprint. ... I think the terms would be more like concave and convex (sorry, just the math nerd in me


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