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Heavy Water

Toward the end of World War II, Hitler and his generals were anxiously waiting for the “miracle weapons” to turn the tide of war in their favor. There were two new weapons that the Nazis had developed which ultimately proved ineffective: a jet fighter and the electro-U-boat. How close did they come to using them against the enemy? More than one thousand jet planes, the Messerschmitt Me 262, were produced and put into action by mid-1944. The Allied fighter planes were no match for the Me 262 in the air. However, very few of the jets ever left the ground. German oil refineries were destroyed thereby limiting the availability of jet fuel. Second, runways had to be extended to accommodate the jets. When they saw the altered runways, Allied bomber and attack plane pilots knew the jets were parked nearby and went out of their way to target them. So, most of the Me 262s were destroyed on the ground and the jets never had any significant impact on the course of the war. Grand Admiral Karl Dönitz (1891−1980) promised Hitler that 126 new electro-U-boats would be put out to sea to once again wreak havoc on British/American shipping lanes. Only two were ever launched and like the jet, never lived up to expectations.

Hydroelectric plant where heavy water was manufactured and stored underground. The building was demolished in 1971. Photo by anonymous (date unknown). Gausta Telemark Norway. www.gausta.com.
Site of the former hydroelectric plant where heavy water was manufactured underground. The building which stood in front of the plant facility, was demolished in 1971. Photo by anonymous (date unknown). Gausta Telemark Norway. www.gausta.com.

The third “miracle weapon” and the one that worried Roosevelt and Churchill the most was the development of the German atomic bomb. After Frédéric and Irène Joliot-Curie wrote that atomic fission was possible and could be used to develop a powerful weapon, Hitler decided to begin his atomic weapons program in 1939. It needed two very important components to be successful: uranium and heavy water. The problem for the Nazis turned out to be heavy water was very scarce and hard to produce. That problem was soon solved after Germany invaded Norway on 9 April 1940. The Vemork Norsk Hydro plant near Rjukan, Norway was capable of producing heavy water. Read More Heavy Water

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The Wrens

We have a lot of different types of birds in Southwest Florida. While many of them are very beautiful, we’re especially attracted to the birds of prey, or raptors. They include ospreys, hawks (e.g., red-tailed, red-shouldered, and short-tailed), vultures (black and turkey), falcons, merlin, owls (e.g., barred and great horned), and kite (e.g., snail, swallow-tailed, and white-tailed). These are the birds that hunt and swoop down on our canal looking for lunch every day (except the vultures⏤they only eat dead stuff).

Before America entered the war, England was alone in its battle against the Nazis. The “smart” money was betting against their survival. One of the challenges Churchill faced was the German navy and in particular, the Unterseeboot, or the U-boat. How was England going to stop the wolfpacks from sinking merchant ships carrying critical supplies to the island?

Recruiting poster for the Wrens. Poster by anonymous (between 1939 and 1945). Imperial War Museum. PD-Expired copyright. Wikimedia Commons.
Recruiting poster for the Wrens. Poster by anonymous (between 1939 and 1945). Imperial War Museum. PD-Expired copyright. Wikimedia Commons.

The answer was a small group of extremely intelligent women. During World War II, women played an extremely important role in winning the war against Hitler and the Nazis. They were résistants, pilots, mechanics, code breakers, factory workers, and yes, even soldiers. Some of them were birds of a different feather but in the end, the Wrens were more like raptors. Read More The Wrens