Einstein: His Life and Universe

Joining with Weyland was an experimental physicist of modest reputation named Ernst Gehrcke, who for years had been assailing relativity with more vehemence than comprehension. Their group lobbed a few personal attacks at Einstein and the “Jewish nature” of relativity theory, then called a series of meetings around Germany, including a large rally at Berlin’s Philharmonic Hall on August 24.

Weyland spoke first and, with the orotund rhetoric of a demagogue, accused Einstein of engaging in a “businesslike booming of his theory and his name.” Einstein’s penchant for publicity, wanted or not, was being used against him, as his assimilationist friends had warned. Relativity was a hoax, Weyland said, and plagiarized to boot. Gehrcke said much the same with a more technical gloss, reading from a written text. The meeting, reported the New York Times, “had a decidedly antiSemitic complexion.”¹⁰

In the middle of Gehrcke’s talk, there arose from the audience a quiet murmur:Einstein, Einstein. He had come to see the circus and, averse neither to publicity nor controversy, laugh at the spectacle. As his friend Philipp Frank noted, “He always liked to regard events in the world around him as if he were a spectator in a theater.” Sitting in the audience with his friend the chemist Walther Nernst, he cackled loudly at times and at the end pronounced the entire event “most amusing.”¹¹

But he was not truly amused, and he even briefly considered moving away from Berlin.¹² His anger aroused, he made the tactical mistake of responding with a highly charged diatribe that was published three days later on the front page of the Berliner Tageblatt, a liberal daily owned by Jewish friends. “I am well aware that the two speakers are unworthy of reply by my pen,” he said, but then proceeded not to be restrained by that awareness. Gehrcke and Weyland had not been explicitly anti-Semitic, nor did they overtly criticize Jews in their speeches. But Einstein alleged that they would not have attacked his theory “if I were a German nationalist, with or without a swastika, instead of a Jew.”¹³

Einstein spent most of his piece refuting Weyland and Gehrcke. But he also attacked a more reputable physicist who was not at the meeting but had given support to the antirelativity cause: Philipp Lenard.

Winner of the 1905 Nobel Prize, Lenard had been a pioneer experimenter who described the photoelectric effect. Einstein had once admired him. “I have just read a wonderful paper by Lenard,” Einstein had gushed to Mari back in 1901. “Under this beautiful piece I am filled with such happiness and joy that I absolutely must share some of it with you.” After Einstein had published his first spate of seminal papers in 1905, citing Lenard by name in the one on light quanta, the two scientists had exchanged flattering letters.¹⁴

But as an ardent German nationalist, Lenard had become increasingly bitter about the British and the Jews, contemptuous of the publicity Einstein’s theory was garnering, and vocal in his attacks on the “absurd” aspects of relativity. He had allowed his name to be used on brochures that were distributed at Weyland’s meeting, and as a Nobel laureate he had worked behind the scenes to make sure that Einstein was not awarded the prize.

Because Lenard had refrained from showing up at the Philharmonic Hall rally, and because his published critiques of relativity had been academic in tone, Einstein did not need to attack him in his newspaper piece. But he did. “I admire Lenard as a master of experimental physics, but he has not yet produced anything outstanding in theoretical physics, and his objections to the general theory of relativity are of such superficiality that, up until now, I did not think it necessary to answer them,” he wrote. “I intend to make up for this.”¹⁵

Einstein’s friends publicly supported him. A group that included von Laue and Nernst published a letter claiming, not altogether accurately, “Whoever is fortunate enough to be close to Einstein knows that he will never be surpassed in his . . . dislike of all publicity.”¹⁶

Privately, however, his friends were appalled. He had been provoked into a display of public anger against those who should have remained unworthy of a reply by his pen, thus stirring up even more distasteful publicity. Max Born’s wife, Hedwig, who had freely scolded Einstein about his treatment of his family, now lectured, “[You should] not have allowed yourself to be goaded into that rather unfortunate reply.” He should show more respect, she said, for “the secluded temple of science.”¹⁷

Paul Ehrenfest was even harsher. “My wife and I absolutely cannot believe that you yourself wrote some of the phrases in the article,” he said. “If you really did write them down with your own hand, it proves that these damn pigs have finally succeeded in touching your soul. I urge you as strongly as I can not to throw one more word on this subject to that voracious beast, the public.”¹⁸

Einstein was somewhat contrite. “Don’t be too severe with me,” he replied to the Borns. “Everyone must, from time to time, make a sacrifice on the altar of stupidity, to please the deity and mankind. And I did so thoroughly with my article.”¹⁹ But he made no apologies for flunking their standards of publicity avoidance. “I had to do this if I wanted to stay in Berlin, where every child recognizes me from photographs,” he told Ehrenfest. “If one believes in democracy, then one must grant the public this much right as well.”²⁰

Not surprisingly, Lenard was outraged by Einstein’s article. He insisted on an apology, as he had not even been part of the antirelativity rally. Arnold Sommerfeld, chairman of the German Physical Society, tried to mediate, and he urged Einstein “to write some conciliatory words to Lenard.”²¹ It was not to be. Einstein refused to back down, and Lenard ended up edging ever closer to being an outright antiSemite and later a Nazi.

(There was one odd coda to this event. In 1953, according to declassified documents in Einstein’s FBI file, a well-dressed German walked into the FBI field office in Miami and told the receptionist he had information that Einstein had admitted to being a communist in an article in Berliner Tageblatt in August 1920. The aspiring informer was none other than Paul Weyland, who had landed in Miami and was trying to emigrate after years of being a con man and swindler all over the world. J. Edgar Hoover’s FBI was eagerly trying to prove, with no success, that Einstein was a communist, and took up the cause. After three months, the Bureau finally found the article and translated it. There was nothing about being a communist in it. Weyland was, nevertheless, granted American citizenship.)²²

The public crossfire coming out of the antirelativity rally heightened interest in the upcoming annual meeting of German scientists, scheduled for late September in the spa town of Bad Nauheim. Both Einstein and Lenard were to attend, and Einstein had ended his newspaper response by proclaiming that, at his suggestion, a public discussion of relativity would occur there. “Anyone who can dare face a scientific forum can present his objections there,” he said, tossing a gauntlet in Lenard’s direction.

During the weeklong gathering in Bad Nauheim, Einstein stayed with Max Born in Frankfurt, twenty miles away, and the two men commuted to the resort town by train each day. The big showdown over relativity, at which both Einstein and Lenard were expected to participate, was on the afternoon of September 23. Einstein had forgotten to bring anything to write with, so he borrowed the pencil of the person next to him in order to take notes while Lenard talked.

Planck was in the chair, and by both his commanding presence and soothing words he was able to prevent any personal attacks. Lenard’s objections to relativity were similar to those of many nontheorists. The theory was built on equations rather than observations, he said, and it “offends against the simple common sense of a scientist.” Einstein replied that what “seems obvious” changes over time. That was true even of Galileo’s mechanics.

It was the first time that Einstein and Lenard had met, but they did not shake hands or speak to each other.