Talk:Ellis drainhole

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	This article was accepted from this draft on 13 February 2016 by reviewer SwisterTwister (talk · contribs).

Not necessarily an NPOV issue but this is definitely written wrong

Latest comment: 2 months ago1 comment1 person in discussion

A lot of this page, while factually not incorrect, seems like it was written by someone who prefers Ellis’s work over that of Einstein/believes Einstein is wrong. This is especially prevalent in the Applications section, which in my opinion is mostly superfluous anyways. This article would be greatly improved by a rewrite/removal of that section and others.

I don’t personally have the references on-hand necessary to write a full article on the Ellis wormhole (unless I could be pointed to a particular section in MTW Gravitation). If someone with references could rewrite the article to sound less like a research report/ad for Ellis and more like an encyclopedia that would be great.

Some of the issues I’m seeing:

”Imagine two euclidean planes, one above the other. Pick two circles of the same radius, one above the other, and remove their interiors. Now glue the exteriors together at the circles, bending the exteriors smoothly so that there is no sharp edge at the gluing. If done with care the result will be the catenoid pictured at right, or something similar. Next, picture the whole connected upper and lower space filled with a fluid flowing with no swirling into the hole from above and out the lower side, gaining speed all the way and bending the lower region into a more conical shape than is seen in If you imagine stepping this movie up from flat screen to 3D, replacing the planes by euclidean three-spaces and the circles by spheres, and think of the fluid as flowing from all directions into the hole from above, and out below with directions unchanged, you will have a pretty good idea of what a 'drainhole' is” - Not only is this a poor way to think about four-dimensional spacetime geometry, but it’s also not written in the proper tone for reasons I hope is clear.

The Applications and Further Applications sections - I see the former as incomplete/misnamed and at the very least having a poor encyclopedic tone and the latter as completely unnecessary. These sections seem like they’re dissing Einstein/advertising Ellis in a bad way. Einstein’s assumptions weren’t “unjustified”, in fact it was Einstein’s field equations that Ellis used to formulate the wormhole in the first place.

If not otherwise possible I’ll go through what references I have and try a rewrite myself. OverzealousAutocorrect (talk) 13:03, 24 September 2024 (UTC)Reply

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