This is a variant of what I"m going to post on The Bad Astronomy Bulletin Board (someone beat me to it and started a thread here...).
I am sorely tempted to take 'em on.
What sort of challenges would I mount? Let's see...
The proofs must be "...direct, observable, physical, natural, repeatable, unambiguous and comprehensive...".
Okay, 'direct, observable, physical, natural' we can pretty much figure out. 'Repeatable'...do the observations come up with the same results every time? Okay, got that one. 'Unambiguous'...from
www.dictionary.com, "Having or exhibiting no ambiguity or uncertainty; clear."...sounds like they want their answer in definite terms. "Comprehensive"...again from
www.dictionary.com, "1. So large in scope or content as to include much: a comprehensive history of the revolution. 2. Marked by or showing extensive understanding: comprehensive knowledge.". Now, this may be the wiggler here...comprehensive = all inclusive? "Two apples plus two oranges = four pieces of fruit. Yeah, but how about two plums and two tomatoes? You didn't include those in your calculations." I'll have to ask them to define a couple of terms.
Here's a question I need to ask them. They question whether the Earth revolves around the Sun. I need to know whether or not they believe that the Earth rotates
at all, or does it sit there stationary, not moving. Doesn't necessarily change the conclusions, just changes the path to get to the conclusions...
If the Sun rotates around the Earth, then everything else that apparently moves through the sky does the same...the Moon...the planets...
and every object in the Universe that is observable by any method we have at hand. So that means we're back to a geocentric Universe, which means we can trot out every proof that every scientist/astronomer from Galileo to the present day have presented. In opposition, the CAI has the viewpoint expressed in the Bible.
If the Sun rotates around the Earth, then analysis of the Sun's 'orbit' indicates that not only does it go around the Earth, it also varies in its orbital inclination to Earth's equator. If it didn't, there would be no indicator of seasons (the equinoxes and solstices). This would mean that the Sun's orbital path is not described by a circle, but by a cylinder!
If the Sun rotates around the Earth, but nothing else does, then what's the center of orbit for the Moon? What's the center of orbit for the planets?
If the planets orbit the Earth, instead of the Sun, doesn't that mean that the planetary orbits would have to be much more elliptical than they are because their distance from the Sun would vary much more? Wouldn't their orbital speed show wild fluctuations between the inbound and outbound orbital speeds because of these elliptical orbits?
If the planets don't orbit just the Earth, but instead orbit the Sun as the Sun orbits the Earth, wouldn't the planetary orbits be a geometric figure the likes of which you'd see designed on an old Spirograph (Java applets available here
to draw your own, and also
to just see the results). In these wildly and decidedly not-even-vaguely-circular orbits, the distances from the individual planets to the Earth would vary much more dramatically than they do now, and there would be many more observable instances of retrograde motion. (The orbital mechanics necessary to calculate all this are way way
way beyond me, but my imagination tempered with a little knowledge leads me to believe the statements of orbital condition. If I'm in error, I invite the reader to show me where I've gone wrong.)
If the non-Solar System objects orbit the Earth, and if the Earth is the center of those orbits, then there wouldn't be the ability to calculate interstellar distances through geometry and trigonometry through the effects of parallax. If the non-Solar System objects orbit the Earth, but the Earth is NOT the center of those orbits, then (A) what is, and (B) wouldn't parallax measurements indicate varying distances to the Earth (at least on those that are measurable due to the limits of instrumentation). If the non-Solar System objects DON'T orbit the Earth, then the same stars would be in the skies nightly year round. For the non-Solar System objects to display the behavior we currently observe if this was a geocentric Universe, then the objects' orbits would have to be the same as the Sun's, that is, one resembling a cylinder! Considering the distances involved, and the speeds necessary, wouldn't the red/blue shifts of various objects be grossly different at different times? (I may be off base on this one...again, corrections are welcomed.) And wouldn't the interactions between galaxies as they sail through interstellar space be happening on a regular basis, as well as being readily observable?
So, I'm tempted to ask them the questions posed above, about the Earth's rotation, and what constitutes 'comprehensive', and also to ask the question about who's going to be judging this competition? Someone or someone
s mutually acceptable, which takes away the home field advantage from them?
Of course, I'd need some assistance with the math involved in certain aspects, maybe some artwork assistance (I get the feeling these fine folk would benefit from looking at some pictures as opposed to written explanations), probably some editorial laying-on-of-hands (ahem), and proofreadin's out the hoohaw.
So tell me...whaddaya think? Are they worth taking a crack at? And am I anywhere near being on the right track to derail them?