We've heard it again and again from the 'truthers':
"Common sense tells us......"
You know the drill: Present them with facts which are contrary to their view of the world and they start on about common sense being just as good as expertise.
So I started to wonder, what other examples of the real world can we present which are counter intuitive to common sense?
My favourites would be:
1. Speed of light
How can something have a constant speed regardless of how fast I am moving in relation to it? Surely common sense tells us that if I am travelling 'very fast' while carrying a torch, then the speed of the light coming out of that torch will be c + 'very fast', right? Just common sense.
2. Flying objects
http://www.centennialofflight.gov/essay/Evolution_of_Technology/lifting_bodies/Tech29G1.htm
How can these 'planes' fly when the wings are so short? Surely common sense tells us that the wings would have to be bigger to provide lift?
3. Strange Creatures
http://www.ocean.udel.edu/kiosk/bsmoker.html
How can creatures live in complete darkness and temperatures of 400 deg centigrade? Common sense tells us this is impossible, right?
Have at it