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I don't object there. However, it seems to be the case that the patent itself was not scrutinized by professional physicists so far. My own modest knowledge does not allow me to evaluate the validity of the critique but I found it interesting enough to point it out. The same critique was...

There is this reference in the original article's footnotes: Mario Sedlak: Physikalische Hindernisse bei der Umsetzung der im „Welsbach-Patent“ beschriebenen Idee In: Zeitschrift für Anomalistik. Bd. 15, 2015, ISSN 1617-4720, S. 317–325

There is a relatively recent article in the German Wikipedia about the theoretical base of the famous Welsbach patent which is often quoted by chemtrail believers. The article's critique in a very small nutshell: Welsbach materials can't emit light without being considerably heated. They...

A good starting point with scientific references is this blog article: http://contrailscience.com/chemical-analysis-of-contrails/ A short history of contrail research by Ulrich Schumann, one of the current top experts: http://elib.dlr.de/32358/

Excellent - if somewhat sobering, because there are outliers even among experts ... Calling a contrail "vortex" suggests that this is not the primary research subject of the respective scientist. On the other hand, the range of explanations works against the impression of a "text book reply"...

That's my assumption.

... and I see Dan Pelletier has chimed in at the comment section which is still accessible.

The article text is now gone. I find that very unfortunate - more food for conspiracy thinking! A prominent retraction notice would have been sufficient. The MPI article is still accessible in full: http://www.mdpi.com/1660-4601/12/8/9375/htm Edit: the PDF version is still available via...

He is meta-known to us.

At least some of the problems are pointed out in the comment section - which could be appended with more issues.

If you look at the original article, can you spot the retraction notice? Hint: it's not really prominently displayed ... http://journal.frontiersin.org/article/10.3389/fpubh.2016.00139/full

There is likely some kind of lens effect, focussing some of the EMF. I assume the shape of the water container is relevant.

It should be no problem to bend normal glass - like from a picture frame - to such a curve and probably further. Put some dark cloth or paper underneath and it will resemble a water surface. The angle of reflection is also important; smaller viewing angles w/r to to the surface and the mirrored...

I happened to witness a nice contrail shadow in the making, with a sun halo thrown in at no additional cost. There was a pretty stable high haze layer right above Montreal, Quebec on Sat., June 4th. It made for several interesting observations. My position for the shadow pics was this: Lat...

Isn't it also possible that some of the more plate-shaped forms are created by partial melting and re-freezing, e.g. when the flakes have passed a warmer layer of air?

Tracy has sued his former university: In his suit, Mr. Tracy accused Florida Atlantic of violating his right to free speech and retaliating against him for exercising that right. He also claimed that the union had colluded with the university to deny him due...

That is indeed a possibility. Did you ever try to track those planes? I recommend having a look on your area with Flightradar24. It's interesting - and also fun!

The following posting has shown up recently on Twitter, containing photos of trees partly covered with moss and lichen. The claim is that 'chemtrails' are the cause of this, and the implied subtext is that these things are in some way harmful. No reference or reason is given for these...

As a reminder not just for you but to everyone: it vastly helps with readability if you edit and reduce any quote from the post you are replying to, just like I did with your's. You can edit the text between the [QUOTE] tags like any other text; however, there is a neat trick: In the post that...

What I tried to bring across - and the others have explained probably better - is this: It's likely that you have a better chance for exhaust contrails on 35000 ft altitude than on 20000 ft (in a moderate latitude). However there is no increase in likeliness on 50000 ft compared to 35000 ft...