Hans Coler

Hans Coler was a German inventor, referred to in the BIOS report as "Captain," who developed two devices claimed to draw on a new source of energy: the Magnetstromapparat and the Stromzeuger. He was interrogated by the Allied BIOS team in 1946 and was judged honest and not a fraud.

Biographical details in the dossier

The dossier's later commentary, sourced to hyiq.org and citing Coler's sister Ursula, claims the surname was actually spelled "Coeler" (Hans Joachim Coeler). The BIOS report itself uses "Coler." The dossier does not corroborate the alternate spelling from the report.

Coler's financial backer for about ten years was Dr. F. Modersohn, a former director of Rheinmetall Borsig, who formed Coler g.m.b.h. to develop the invention. Coler worked with von Unruh on the Magnetstromapparat in early 1933, and with Dipl. Ing. Rudolf Hingst, who co-measured the 1937 two-solenoid secondary-DC effect; the 1943 report states that later testing of these measurements did not confirm them. Dr. H. (Heinz) Frohlich worked with Coler from 1 April to 25 September 1943 under Oberaurat Seysen, directing the O.K.M. investigation.

Claims attributed to Coler

• The Stromzeuger could give about 6 kW output indefinitely from a few watts of dry-battery input.
• The greatest tension obtained from the Magnetstromapparat was 12 volts.
• Magnet strength did not decrease during use.
• Ferro-magnetism oscillates at roughly 180 kHz in the magnetic circuit, and the device taps "Raumenergie" (space-energy).
• In 1943 he asserted a "clear proof" that the opening impulse carries more energy than the closing impulse, based on Frohlich's experiments.

Coler could give no coherent theory for the effect. The BIOS report notes that a claim of this kind would normally be considered fraudulent, yet judged Coler honest.

Assessment in the source

The BIOS team judged Coler honest, judged the small effect they observed to be genuine "in so far as could be tested," and could not explain it. Their own four laboratory experiments failed to confirm the sub-effects on which the claimed mechanism depended, and they concluded that earlier successes were due to "chance, or happy accident." A later book blurb reproduced in the dossier asserts that a 1937 Berlin University demonstration failed, that Coler was accused of fraud, and that the device was seized — a narrative that conflicts with the BIOS finding. See comparison-coler-claims-vs-evidence.