The link you posted is flat defective for both vBulletin and for Discourse. Though it’s obviously trying to be a vBulletin link. I wonder if you transcribed it badly.
I just Googled for the exact same thing [1920’s style death ray straightdope] and the first hit was the lead post in the Discourse version of the site:
The second hit was an earlier thread of almost the same title, and was also the Discourse version:
The wiki for Edgar Cayce was Google’s next suggestion.