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Quickshots at difficult subjects.

Daealis

New Member
arg-fallbackName="Daealis"/>
I was going to post this as a single experience, but I reconsidered thinking that someone else might've done these as well. So extending this to a general thread, here comes 'the rules'

Have you encountered a video made by an evangelist or a creationist(atheists too, if our believing members have encountered them) that seemed to have particularly specialized knowledge in some subject? So deep that you needed to research it for hours or possibly days to see his lies, or you knew that without a prior interest in the matter you could have bought his lies?

I wish to dedicate this thread to short(or atleast relatively short) debunks of such 'expert' stories and comments to these. If you feel like you've done some debunking in a subject most likely not common knowledge, post it here!

I'll post an older thing of mine, considering David Pawson and the anisotropic gemstones that will build new Jerusalem.

While reading on the topic Pulsar made on empty words(sin, heaven, etc), I stumbled upon the comments made about heaven. It reminded me about a video I've watched some time ago:

There is your absolute proof of the new Jerusalem and the existence of god! Anisotropic gemstones.

Took me all day to read up on this and find out what he is talking about. It's your classic creatard-scheme of using peoples ignorance against them. This subject is pretty hard when you try to google something useful for a source and such. I provided my prime source in the end of this post.

Amazingly enough, Pawson does know enough of gemstones to tell the truth about the polarizations and some turning all black, while others project the whole spectrum. This checks out and is all very cool. He claims that only recently have we been able to cut gems so thin we can test them as such, and that is true as well.

But we've always been able to tell isotropic gems from anisotropic gems. This is the bit he forgot to tell you: When looking through a gemstone, you will propably see one of two things: One image distorted, or several images as the light gets split into several beams. The first group is isotropic gems, the latter are anisotropic. So yeah, as soon as man had eyes and found clear enough gem to see through it, he has been able to differentiate between isotropic and anisotropic gemstones.

What else was left untold? Well, only the little fact that kinda gives the whole story away as a story from archaic times, not a divine revelation. You see, the twelve stones described in the story: Five of those are just chalcedony with different pigment. So god must really like chalcedony, or the guys writing this thing didn't know this(because they couldn't tell the chemical composition of the stone). There is plenty of gems to pick from(anisotropics, both uni- and biaxial in optic character), but he picks five different forms chalcedony. I'd think god should know the difference between different colored same type of stones and truly different gems. From the source you can see the list of gemstones yourself and see that there are plenty of stones to choose, jade and sapphire to mention two.

If this video and the research that followed showed me anything, it's that never trust an evangelist, no matter how professional he sounds. Cherrypicking to hide the truth in awe and amazement.

In case I am sorely mistaken, I will provide you with the source for my part of this ridicule, so you can correct if there was something said wrong.

Comment on this or post your own "a little more specialized debunk"-story. Knowledge is power!
 
arg-fallbackName="orpiment99"/>
Most minerals are anistropic. It takes work to find an isotropic mineral. Furthermore, the "beautiful colors" are because of the way the light is reflected. They will change (somewhat) depending on the thickness of the mineral and the orientation of the mineral to the viewer.

Also, chalcedony is nothing more than cryptocrystalline quartz. Very common and most geologists wouldn't even care enough to differentiate between them.

Besides, why would a god care about how pretty a mineral is when viewed in cross polarized light? Wouldn't everyone care more about it in plain light?

Here are a few on line sites that I used when I was taking igneous and metamorphic petrology:
http://www.geolab.unc.edu/Petunia/IgMetAtlas/minerals/minerals.html
http://www.uwgb.edu/DutchS/PETROLGY/thinsect.htm

And here is a site that somewhat explains the phenomenon:
http://www.answers.com/topic/birefringence

This one is better:
http://hyperphysics.phy-astr.gsu.edu/HBASE/PHYOPT/biref.html
 
arg-fallbackName="Daealis"/>
orpiment99 said:
Besides, why would a god care about how pretty a mineral is when viewed in cross polarized light? Wouldn't everyone care more about it in plain light?
This part is adressed in the video. Pawson keeps repeating the term "pure light", while talking about polarized light, apparently just to make it sound somewhat divine. I suppose he suggests that all the light in heaven is 'pure' in nature and therefore polarized and since only anisotropic gems when cut into thin layers show in all the colors of the spectrum heaven is only using those, because apparently this psychedelic lightshow is what god is into.
 
arg-fallbackName="Pulsar"/>
Very nice, you learn something everyday.
Daealis said:
I suppose he suggests that all the light in heaven is 'pure' in nature and therefore polarized and since only anisotropic gems when cut into thin layers show in all the colors of the spectrum heaven is only using those, because apparently this psychedelic lightshow is what god is into.
A psychedelic lightshow? So David Gilmour is God after all, I knew it! Do we get 3D glasses at the Pearly Gates?
 
arg-fallbackName="Ben"/>
I thought Pawson made the excellent point that if the book of Revelations was human inspired then it would have included those stones (diamonds and the varieties noted by some of the respondents here) which are considered valuable or 'special' from a human perspective. As such I believe you have served to prove Pawson's point that God does not think like Man, and vice versa.
 
arg-fallbackName="Dragan Glas"/>
Greetings,

What Pawson is saying here is merely "science-y" - something which sounds like it's science, and therefore carries the weight of authority.

He mixes up light coming from all directions (ambient), light vibrating in all directions (non-polarised), and light that is out-of-step (incoherent).

Firstly, between 0:21-0:55, he is mixing up - perhaps even deliberately equivocating? - "light coming from all directions" and incoherent light.

These are not the same thing! :facepalm:

Incoherent light is white light - light comprised of all the colours of the rainbow due to their different wavelengths. The term "incoherent" refers to the fact that they are "out of step" due to that difference. (Coherent light being of one colour, all the waves are "in step".)

Hence his reference to laser-light.

Clearly, this has nothing to do with "light coming from all directions"!

Secondly, from 0:55 onwards, he - again! - either confuses (or equivocates) right-angled bi-polarized light and cross polarized light.

Again, these are not the same thing! :facepalm:

Polarised light - what Pawson refers to as "pure light" - is simply light that vibrates in one direction. This should not be confused with coherent light, as polarised incoherent light is still incoherent light.

If you place two polarisers at right-angles to each other, like his example of the two lenses from a pair of sunglasses (0:55-1:20), you won't get "a very fine filter" that "only lets very straight light through" - you won't get any light through at all!

In cross polarised light - as used in a polarising microscope - if you place a anisotropic material between the two filters, you'll get polarised light come through.

This is because anisotropic material refracts the polarised light from the first filter into two waves at different angles to each other - the second filter then filters one of these out, leaving the other to pass through.

gloss_polariser.jpg


His claim that nobody knew this at the time - "2000 years ago" - is simply not the case:

- Revelations was written around 150-200CE;
- Chalcedony, to pick the most numerous of the mentioned twelve stones, was known from at least 1800BCE - a further 2000 years earlier!

Someone is bound to have looked through chalcedony crystals - along with others - and seen how they differed from other gems known at the time, such as garnets.

It should also be noted, however, that the word in the NT, which was written in koinë Greek, is not necessarily the same as the gemstone - its meaning is actually uncertain:
The Greek word khalkedon (χαλκηδών) also appears in the Book of Revelation (Apc 21,19). It is a Hapax legomenon, a word found nowhere else, so it is impossible to tell whether the precious gem mentioned in the Bible is the same mineral known by this name today.
So, any claim based on its referring to the gemstone is unfounded.

Kindest regards,

James
 
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