The problem is that you are reversing the string a few times. The following will do: (defun base8 (n) (let ((t8 (truncate n 8)) (m8 (mod n 8))) (if (= t8 0) (list m8) (append (base8 t8) (list m8))))) EDIT Here's a solution without append, using a helper function.
So, the average weight for a healthy, human kidney is 0.26-0.30 pounds. (approx.) The average weight for a healthy, human kidney is 120-140 grams. 1 pound= 453.59237 grams. So, the average weight for a healthy, human kidney is 0.26-0.30 pounds. (approx.) The average weight for a healthy, human kidney is 120-140 grams. 1 pound= 453.59237 grams. So, the average weight for a healthy, human kidney is 0.26-0.30 pounds.
People are born with two kidneys. Each is about the size of a fist, and they're on both sides of your spine at the bottom of your rib cage. Together they weigh about 10 to 12 ounces. When your body uses the food you eat and the liquids you drink, there are waste products that your kidneys filter out as urine.