They probably believe that the turtle moves, as well.

In my ongoing series extolling the biggest idiots on the intarwebs - or rather the most amusing ones, I give you the the International Flat Earth Research Society. These ones are right nutters. Unfortunately their founder, Charles Johnson, passed away about a decade ago, and the society hasn't been quite the same since. TalkOrigins has an interesting article which features the almost obligatory denouncement of science in general, and in the most up-is-down and black-is-white fashion possible:

We maintain that what is called 'Science' today and 'scientists' consist of the same old gang of witch doctors, sorcerers, tellers of tales, the 'Priest-Entertainers' for the common people. 'Science' consists of a weird, way-out occult concoction of jibberish theory-theology...unrelated to the real world of facts, technology and inventions, tall buildings and fast cars, airplanes and other Real and Good things in life; technology is not in any way related to the web of idiotic scientific theory. ALL inventors have been anti-science.

They've got some good theories, too. Of course, gravity doesn't exist, cuz a flat earth has no mass (or something). But why don't we fall off the planet? Thank you for asking. The answer is obvious, of course - we're accelerating upwards at 9.8 m/s^2, and have been forever*. They're not quite clear on why, of course. God, probably. Of course, they base their - interesting - ideas on what they consider to be a literal interpretation of the bible.

I sometimes call myself the Last Iconclast. Science is a false religion, the opium of the masses. I myself count it as a begining of Sanity to confess 'the creation proves there was a Creator' so a God or Creator...Exists. From a life-time of study, of seeking out a proving things, from the study of 6,000 years of recorded history, from observation, from experience, from Common Sense Observation, have concluded the 10 Commandments are in fact good Laws of Living and Behavior for oneself and all in contact with you.

Of course, it's commonly known that, until the end of the middle ages, the earth was widely considered to be flat. That's a lie. The earth has been known to be a sphere since the sixth century BC and even throughout the middle ages, when so much knowledge was lost, the earth was known to be round.

* 6000 years**

** At which rate we're now going six thousand, one hundred and eighty-five times the speed of light. Up yours, Einstein.