Have you ever walked into a room and immediately forgotten the reason you're there? Why is the sky blue? Why is it dark at night? Why does lunacy erupt under a full moon? What's the truth about Spinach and Popeye? Dr Karl applies his trademark straight-talkin'-no-high-falutin' scientific sense to a brand new range of Big Questions that you never knew you even wanted to ask, but now desperately need to know the answers to.
