Matt Whiting wrote:
Why is it that Christians who accept things they aren't 100% sure of
(they call it faith) are called nutcases or worse, yet when it is
scientists who accepts things they aren't 100% sure of it is somehow
different?

I thought Christians were, by definition, 100% sure their belief in god is
correct?

Anyway, scientists are never 100% sure (by definition).

There are even a couple (low quality) videos on YouTube of physicist
Richard Feynman explaining the scientific process that stresses the
fundamental provisional nature of scientific "laws":

http://www.youtube.com/watch?v=ozF5Cwbt6RY
http://www.youtube.com/watch?v=d1ZtRN-iGdQ

And if you don't like the fact that physics' description of the way the
universe works is difficult to understand:

http://www.youtube.com/watch?v=5VMu14mBXAs