The Year That Was

Note: This episode contains a description of a poison gas attack in World War I and a discussion of the injuries caused by different gases. I do not dwell on the details, but even the bare facts can be disturbing. There is also a discussion of suicide. Take care of yourself, and thank you.

The title of this episode is taken from a famous poem by writer and soldier Wilfred A. Owen. His 1918 poem "Dulce et Decorum Est" quotes another poet, the Roman lyricist Horace, and his line "Dulce et decorum est pro patria mori." This translates as "It is sweet and fitting [appropriate, proper] to die for one's country."

Fritz Haber was born in 1868 to Jewish parents in the town of Breslau, Germany. He received his Ph.D. in chemistry and earned a reputation as a hardworking and painstaking researcher. In 1919, he was both accused of war crimes and awarded a Nobel Prize.

Ancient farmers understood the role of nitrogen in the soil, although they couldn't have told you what nitrogen was or how it worked. They knew, however, that land lost its productivity when it was farmed extensively. Farmers could renew their soil to some degree by adding dung and compost to the land.

They also knew crop rotation was important. Medieval farmers, such as those seen in this image, generally used a three-field system. One field was used for grains, one for peas or lentils, and one left fallow.

In the 19th century, scientists learned about the role of nitrogen in living things and discovered how certain bacteria are able to "fix" nitrogen and make it available to plants. The bacteria, known as "diazotrophs," are found in nodules such as you see above in the roots of plants such as peas and lentils.

Crop rotation and manure were the best farmers could do until the discovery of the incredible effectiveness of South American guano in the mid-1900s. The above image depicts one of the islands off the coast of Peru where birds had deposited guano for millions of years. You can see the guano formed massive peaks. Miners hacked away at the guano so it could be exported to Europe and North America.

Germany, like most modern nations, became heavily dependent on these imports, both for fertilizer and to make explosives.

Clara Immerwahr Haber married Haber in 1901. She was the first woman to receive a Ph.D. from her university in Germany, a remarkable achievement for a woman in her era. Haber, however, expected only to keep house.

Haber began work on ammonia synthesis in 1904. It was a matter of slow, painstaking work tinkering with temperature, pressure and the right catalyst. Above is a reconstruction of Haber's final table-top process.

I compared the setup to the 1970s board game "Mousetrap." Haber's setup looks simpler than the Rube Goldberg contraption in the game, but his device was far more dangerous and likely to explode and send red-hot shrapnel flying everywhere.

Carl Bosch, a brilliant engineer with the German chemical giant BASF, took over the ammonia synthesis project from Haber. He refined the process and expanded it to an industrial scale. His work was significant, which is why the process is known today as Haber-Bosch.

The announcement of the invention of the ammonia process brought Haber international acclaim. His income soared, he became famous in Germany and soonhe was appointed the founding director of the new Kaiser Wilhelm Institute of Physical Chemistry and Electrochemistry. The institute is seen here shortly after its construction in 1911; it was a government-founded research organization and think tank, intended to keep Germany at the forefront of scientific research.

When the Great War began, Haber immediately volunteered for service. He is seen here, at the front; he is the one pointing. He dedicated himself to using chemistry to win the war. One of his first contributions was to convince BASF to convert their ammonia factory to make the starting materials for explosives. This was a critical step for Germany, one that doesn't receive as much attention as it deserves. Without the BASF factories, Germany would have run out of explosives early in the war.

Haber also worked on an experimental program to develop chemical weapons. He eventually convinced the German High Command to test a system that would release the highly toxic chlorine gas across No Man's Land to the Allied troops on the other side.

Here you can see the gas flowing across the line toward the Allies at the first attack at Ypres on April 22, 1915. The gas killed or severely injured those who inhaled it in large quantities--and terrified those who saw it in action. This attack opened a four-mile wide hole in the Allied lines, injured 15,000 Allied soldiers and killed 5000.

The attack was immediately condemned by everyone except Germany. Kaiser Wilhelm, delighted by the attack,...

In 1914, most scientists claimed their work knew no borders, but the Great War slammed the door on international scientific cooperation. So when a obscure German physicist named Albert Einstein presented a radical new explanation of gravity, he feared no one outside of Germany would be willing to help confirm his theory. He had no idea that his work would come to the attention of the one man able to make the critical observations and willing to explore German ideas--the pacifist astronomer Arthur Eddington.

Arthur Stanley Eddington was born in 1882 to a devout Quaker family. He would remain a faithful member of the Society of Friends his entire life and shared their deep conviction in pacifism and opposition to war.

Eddington's first total solar eclipse was in October 1912. This map show the path of totality. Eddington was stationed with several teams from around the world in Passa Quatro, Brazil. Unfortunately, the eclipse was rained out--an all-too-common occurance.

While in Brazil, Eddington was likely told about the work of the still-obscure German physicist Albert Einstein. Einstein, seen here with his first wife Mileva, had already published several groundbreaking papers and had begun his work on general relativity. In 1913, he moved to Berlin to teach at the University of Berlin and become the director of the Kaiser Wilhelm Institute for Physics.

Einstein discussed his Theory of General Relativity with the German astronomer Erwin Freundlich, seen here looking like the villian in an early silent movie. Freundlich passed the ideas on Charles Dillon Perrine, who most likely described them Eddington. Freundlich mounted an expedition to observe the 1914 eclipse in Russia to prove Einstein's predictions on the deflection of starlight.

The 1914 eclipse passed over Sweden and Norway, into Russia, and down through the Ottoman Empire and Persia. Astronomers believed they would have the best conditions in Ukraine and Crimea, and many of them set up there in late summer 1914.

War broke out before the eclipse took place. Freundlich and his German team were detained by Russian officials. British and American teams were able to go on with their work, but again, the eclipse was rained out. The teams then face the difficult task of getting out of war-time Russia. They all had to leave their equipment behind, and getting it back was a lingering headache. The American team didn't receive their telescope and cameras until 1918.

This fascinating graphic from the weekly British illustrated newspaper The Graphic combines a map of the path of totality with a map of the conflict in Belgium and northern France, Serbia, and the Russian border. The graphic ominously describes "The Shadow Sweeping Across Europe."

Allied outrage at German atrocities in Belgium prompted a spirited defense of German actions by scientists, writers, artists and theologians including Fritz Haber. The "Manifesto to the Civilized World," also known as the "Manifesto of the 93," offended Allied scientists and prompted many to call for complete repudiation of German science. Einstein refused to sign the Manifesto.

British scientists relentlessly hounded German-born astronomer Arthur Schuster, despite the fact he had moved to Britain as a teenager. His son served in the British army and was wounded in the Dardanelles.

At the same time, British physicist James Chadwick, who was studying in Germany in 1914, was detained in a former racetrack. He remained in German custody under dire conditions until the Armistice.

Einstein published his complete Theory of Relativity in November 1915. One of the few German scientists who showed any interest was astronomer Karl Schwartzchild. Schwartzchild was serving in the army on the Russian front, where he put his advanced mathematic skills to use calculating artillery trajectories. In his spare time, while under heavy Russian fire, he worked through the math in Einstein's paper. He demonstrated that the math worked beautifully to calculate the movements of planets and stars. He also inadvertently, and without at all realizing it, discovered black holes.

Britain tried to fight the Great War with a volunteer army, but by 1916 it was clear conscription would be necessary. Men could claim exemption for hardship, work of national importance, and conscientious objection. The goverment established tribunals to issue these exemptions but offered no guidance on qualifications.

Conscientious objectors were deeply suspect as slackers and cowards. In this editorial cartoon, a lazy conscientious objector lounges before a fire with a cigar ignoring images of his entire family doing war work. It is titled "This little pig stayed home."