Dr Karl on triplej

ABC Science

Science & Medicine

Join Dr Karl Kruszelnicki, Zan Rowe and their scientific guests, with a bunch of curious triplej listeners for a weekly injection of science, myth-bashing and answers! Thursdays from 11am EST.


Hairy poos, space junk, scar tissue fingerprints

November 25th, 2015

Episode 118 of 162 episodes

Why is my poo hairy and black when I take vitamins? Do fingerprints grow through scar tissue? How big does space junk need to be for it to make land contact?