The Holocaust is supposed to have been the implementation of the “perfect crime” with modern technology invented by ingenious yet nefarious German technological minds: gas chambers, crematoria, gas vans, and other automatic execution devices. But the mere claim of technological perfection does not make this claim true. Here the various claimed techniques are subjected to a detailed scrutiny.

Auschwitz: Technique and Operation of the Gas Chambers

In 2017, a German publishing company asked me to contribute a thorough introduction to a reprint edition of Jean-Claude Pressac’s 1989 book of the same title. Unfortunately, this German publisher went out of business in late 2018, so no such reprint ever appeared. My introduction is still valuable, though; hence I published it in January…

Zyklon B – a Supplement

Zyklon B is the term of horror that symbolically summarizes all the atrocities reported about the National Socialist era. For the majority of people today, Zyklon B is the epitome of industrial mass murder. However, this will not be discussed here. Rather, after a brief description of the history of its creation and regular use,…

The Toxicity of Fumes from Diesel Engine under Four Different Running Conditions

It has been suggested that fumes from diesel engines make an important contribution to atmospheric pollution. This is probably because they are sometimes highly irritant and sometimes very smoky. It is well known that, because of their comparatively low carbon monoxide content, these fumes arc much less lethal than those from petrol engines.
The leading work on diesel fumes has been done by the U.S. Bureau of Mines. Holtz, Berger, Elliott, and Schrenk (1940) analysed the fumes from engines in proper mechanical conditions, plotting the carbon monoxide, nitrogen oxides, and aldehyde content against fuel-air ratio.
The present work was directed to ascertaining what were the main toxic constituents of diesel fumes. In order to do this, animals were exposed to the fumes, and at the same time the concentration of various constituents of the fumes was determined; pathological investigations were subsequently carried out on the exposed animals.
In this paper, nitric oxide is designated NO, and nitrogen dioxide NO2. For conversion of parts per million to mg/m³ factors valid at 20°C have been used.

Critique of the Matt Cockerill vs. Thomas Dalton Debate, Part 4

Matt Cockerill and Thomas Dalton had a debate on the Holocaust which can be found at This article discusses Matt’s evidence for the existence of homicidal gas chambers at Auschwitz-Birkenau. It also discusses the cremation capacity at Auschwitz-Birkenau, as well as other evidence that Matt produces in this debate concerning Auschwitz-Birkenau.

Sachsenhausen Concentration Camp

The Sachsenhausen Concentration Camp, located not far from Berlin, plays a small but lucrative role in the orthodoxy's arsenal of re-educational tools. Wartime documents from the Sachsenhausen Camp make it possible to determine extremely precisely the camp’s occupancy as well as its inmate mortality during the war. The Sachsenhausen case reveals the methods of Soviet atrocity propaganda during the immediate postwar period.

The Seventh Gas Chamber of Majdanek

Seven homicidal gas chambers are said to have existed at the Majdanek Camp. At least, that was what the public has been told by Polish authorities between 1945 and the early 2000s. Six of these chambers have been well-described, and they had some "criminal traces" to give them at least a little credence. But the seventh of them, a room in the center of the camp's crematorium, never made any sense at all, and has been the laughing stock of open-minded observers for decades. In the meantime, the Majdanek Museum has admitted that this room (and four of the others) were not homicidal gas chambers after all. By going to the sources, this paper addresses the question how it could happen that a ludicrous claim such as this could have evolved in the first place.

The Case of Brushwood That Was Not Available

Exterminationists offer a wide variety of means by which millions of human cadavers, victims of the so-called Holocaust, are said to have been disposed of, ranging from stationary or portable crematoria to pyre burning, but the version currently offered by the Treblinka Museum on their website is perhaps the most-ludicrous of them all. The museum claims that 800,000 alleged victims were burned on grates made of rails, with brushwood as the source of energy. The brushwood necessary to fuel those pyres was allegedly collected in nearby forests, or was simply somehow miraculously available in sufficient quantities during the first half of 1943, when the claimed Treblinka victims are said to have been cremated. In this paper, the authors attempt to describe this operation, with strong emphasis on the logistics needed.

Preliminary Report of Archaeological Excavations in the Sobibór Extermination Center, 2015

On May 5, 2018, we downloaded this file from the website dedicated to then-ongoing research in the area of the former Sobibór Camp. It summarizes the results of forensic excavations conducted up to the fall of 2015. The file has since been removed, and the Wayback Machine has no copy of it either. Hence we re-post it on CODOH.

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