Why we have kneecaps Unknown 10:45 The demonstration shows how kneecaps provide leverage. I'm happy the Flying Spaghetti Monster built us this way. Share: Email ThisBlogThis!Share to XShare to Facebook Related Posts:This "Weird Units Calculator" can convert watts into T-Rex bites and lightsabersMind-blowing facts about gourdsStudents don't organize files anymoreWatch the new trailer for the new MUPPETS Haunted Mansion Halloween SpecialWoman loses ability to feel hunger after a stroke