1912

Nobel Prize in Physics

A Lighthouse That Watched Itself

Gustaf Dalén

By 1912 the world's coastlines were pricked with thousands of lighthouses, most of them burning acetylene gas and requiring a keeper — a human being, rotating in and out of a lonely tower — to turn the flame on at dusk and off at dawn with depressing regularity. Gustaf Dalén, a Swedish engineer at AGA, resolved this indignity with characteristic Swedish practicality: his sun valve used the differential expansion of metal rods to sense the failing light and open or close the gas supply automatically, meaning the beacon watched itself. Sailors got a more reliable light; the Swedish gas company got lower bills; the keepers got their nights back. The Nobel committee, more accustomed to bestowing physics prizes on theories of the universe, gave this one to a man who had built a thermostat for lighthouses — and was not wrong to do so. Without automatic regulation, the entire modern navigation infrastructure would still depend on men climbing damp stairs in the dark.

Nobel Prize in Chemistry

Tools to Build and Tools to Finish

Victor Grignard · Paul Sabatier

Victor Grignard, working in Lyon at the turn of the century, discovered that magnesium dissolved in dry ether alongside an organic halide would produce something far more interesting than a mess — an organomagnesium compound now bearing his name, reactive enough to attach new carbon atoms almost wherever a chemist pointed it. It was, for synthetic organic chemistry, the equivalent of being handed a reliable precision tool after years of working with a hammer. His co-laureate, Paul Sabatier, contributed a different kind of elegance: he found that finely divided nickel could catalyse the addition of hydrogen across double bonds in organic molecules, a process called hydrogenation that required no exotic reagents and produced no alarming by-products. Together the two men gave twentieth-century chemistry the means to build and to saturate — Grignard's reagents for construction, Sabatier's catalyst for finishing. Sabatier's hydrogenation is still running in the factories that turn vegetable oils into the solid fats in margarine, a fact that has become complicated but remains chemically impeccable.

Nobel Prize in Physiology or Medicine

He Solved the Plumbing, Not the Politics

Alexis Carrel

Alexis Carrel was motivated, improbably, by the assassination of the French president Sadi Carnot in 1894, who bled to death from a stab wound to the portal vein — a vessel a skilled surgeon might today repair in minutes. Carrel threw himself into the problem of vascular surgery with obsessive discipline, developing suturing techniques so fine and so careful that severed blood vessels could be rejoined without clotting or leakage, and that organs could be moved between animals and made to function in their new bodies. The surgery worked with a thoroughness that astonished his contemporaries. What it did not do was last: the transplanted organs eventually failed, rejected by an immune system that nobody yet understood well enough to placate. Carrel had solved the plumbing decades before immunology would explain the politics. The triangulation method he devised for joining vessels end-to-end remains the conceptual foundation of vascular surgery; every coronary bypass and organ transplant performed today descends, in a direct technical line, from his needlework.

Nobel Prize in Literature

Weavers Take the Stage From Kings

Gerhart Hauptmann

The German stage in the later nineteenth century was not short of grandeur — it had Schiller, it had Wagner in the opera house next door, it had an appetite for kings and doomed heroes conducted in verse. Gerhart Hauptmann arrived with something the theatre had largely decided was beneath it: working people, Silesian weavers, struggling families, the ordinary misery of ordinary lives rendered in dialect and without a redemptive arc in sight. His 1892 play about the Silesian weavers' uprising was banned by the Prussian authorities, which settled the question of its seriousness more efficiently than any review. Hauptmann did not argue that the poor were noble or that suffering was ennobling; he simply insisted that their suffering was worth the audience's attention, and he was right. The Nobel committee, citing his 'fruitful, varied, and outstanding production in the realm of dramatic art,' understood that what Hauptmann had done was not diminish theatre but enlarge it — downward, into lives it had previously been content to ignore.

Nobel Peace Prize

Diplomatic Architecture, Untested

Elihu Root

Elihu Root was that rather useful figure in American public life: a lawyer who could organise things. As Secretary of State under Theodore Roosevelt he had negotiated a series of bilateral arbitration treaties committing the United States and its neighbours to submit disputes to an international body rather than resolve them by other means, and he had worked to stabilise relations across the Americas through the Pan-American conference system. The Nobel Committee awarded him the 1912 prize in recognition of a career that had, by any honest accounting, constructed more diplomatic architecture than most — treaties, institutions, a reorganised army, a functioning relationship with Latin America. The award arrived during a period of relative international calm, which is the natural moment to celebrate the machinery of peace. Two years later, in August 1914, that machinery was put to its first serious test, and the results were instructive in ways Root would spend the rest of his life trying to address.

Discovery of cosmic rays

A Sky That Rains Invisibly

The prevailing assumption before 1912 was that the ionising radiation detectable in the atmosphere came from radioactive materials in the ground — the earth was the source, and the readings should fall the higher you climbed away from it. Victor Hess, an Austrian physicist with a preference for balloons and a healthy scepticism of prevailing assumptions, ascended to nearly 5,000 metres on 7 August carrying electroscopes sensitive enough to measure the charge they lost to ionisation. The readings did not fall; they rose, and rose sharply above 2,000 metres, in a pattern that made no sense if the source was terrestrial. He concluded, correctly, that something was arriving from beyond the atmosphere — particles of extraordinary energy, origin entirely unknown, bathing everything on Earth in a constant invisible rain. Hess would receive his Nobel for this twenty-four years later, which gives some sense of how long it took his colleagues to accept that the sky itself was radioactive. Cosmic rays would go on to produce, in the upper atmosphere, muons that survive long enough to reach sea level only because of time dilation — the first experimental confirmation of special relativity's predictions about moving clocks.

Wegener proposes continental drift

The Continents Were Never Still

Alfred Wegener was a meteorologist by training, which may explain why geologists felt comfortable dismissing him. In January 1912 he presented his hypothesis of continental drift to the German Geological Society: the continents had once been assembled into a single landmass he called Pangaea, had since split apart and slowly migrated to their present positions, and the evidence for this was hiding in plain sight — the matching coastlines of Africa and South America, the identical fossil species on either side of the Atlantic, the coal seams in Antarctica that implied a tropical past. The geological establishment received the idea with a hostility impressive even by the standards of a profession not naturally given to enthusiasm. The objection was that Wegener could not identify a mechanism capable of shoving a continent across the ocean floor. He could not; the mechanism, seafloor spreading driven by mantle convection, would only be established in the 1960s. In the meantime, the continents had been drifting regardless of whether anyone approved of the theory.

von Laue discovers X-ray diffraction by crystals

Two Questions That Answered Each Other

Max von Laue had two open questions in 1912 and the wit to see they could answer each other. The first: were X-rays waves, and if so, how short was their wavelength? The second: were crystals actually composed of atoms arranged in regular, repeating lattices, as theory suggested, or was that just a convenient model? He reasoned that if X-rays had wavelengths of the right scale — comparable to the spacing between atoms — and if crystals were indeed periodic structures, then passing X-rays through a crystal should produce a diffraction pattern, the same way a grating splits visible light into its colours. His colleagues Walter Friedrich and Paul Knipping performed the experiment; the distinctive spotted patterns that appeared on the photographic plates confirmed both hypotheses simultaneously. X-rays were waves; crystals were lattices. The technique that followed — X-ray crystallography — became the most precise tool science has ever had for reading the three-dimensional structure of matter, and it would go on to reveal the double helix, the structure of haemoglobin, and the shapes of the proteins that run every cell in every living thing.

Identification of histamine

The Body's Own Emergency Signal

Henry Dale was working at the Wellcome Physiological Research Laboratory in 1910 when he extracted an unusual compound from ergot, the fungus that parasitises rye and had a long history of causing spectacular misery in anyone who ate contaminated bread. The compound — which he named histamine from 'histos', the Greek for tissue — turned out to be present not only in ergot but in animal tissues themselves, and when he injected it into experimental animals it produced effects that looked disconcertingly familiar: the drop in blood pressure, the constriction of bronchial muscle, the dilation of blood vessels that together constitute anaphylaxis. The body, it seemed, was carrying its own emergency signal, one that it occasionally fired in catastrophic error at harmless things like pollen or peanuts. Dale's identification of histamine as a natural tissue compound set in motion a century of pharmacological investigation that would eventually explain hay fever, asthma, allergic reactions, and — in a chain of logic that took until the 1940s — produce the antihistamines that now sit in every medicine cabinet.

RMS Titanic sinks during maiden voyage

Practically Unsinkable, Precisely Wrong

She was not, strictly speaking, advertised as unsinkable — that was a misquotation of a claim in a trade journal, inflated by enthusiasm and repeated so many times it became accepted history. What White Star Line did say was that the Titanic's watertight compartment design made her 'practically unsinkable,' which proved to be a distinction without much practical difference when she struck an iceberg at 23:40 on 14 April 1912 and sank in two hours and forty minutes, carrying 1,517 people to the bottom of the North Atlantic. She was carrying fewer lifeboats than her capacity permitted because the Board of Trade's regulations had not kept pace with the rapid increase in ship size — a bureaucratic failure with an exact cost. The disaster's legacy was unusually concrete: the International Convention for the Safety of Life at Sea was agreed in 1914, introducing mandatory lifeboat provision for all passengers, radio watches around the clock, and the International Ice Patrol, which has been tracking North Atlantic icebergs ever since and has not lost a ship to one in the century since it was founded.