The math itself doesn’t make much sense, but I like the concept of this formula to calculate the real size of your gadget. One thing is clear: the Apple fanboy constant automatically sets the ...

Be careful not to print out the actual size unless printing size is set to 100% at the time of printing. Cut it out and list it. The left is 38 mm case and the right is 42 mm case.

HELLMAN, B. Actual Distribution of the Number and Volume of the Islets of Langerhans in Different Size Classes in Non-diabetic Humans of Varying Ages. Nature 184 , 1498–1499 (1959). https://doi ...