Tag Archives: Hebrew

Jews of the Week: Edmund Landau and Lev Landau

Two Math Wizards

Edmund Landau

Edmund Georg Hermann Landau (1877-1938) was born in Berlin. As a young boy, he was recognized as a math prodigy, and earned his Ph.D from the University of Berlin by 22. He immediately received a teaching position at the university, where he taught for the next ten years. Meanwhile, Landau married the daughter of Nobel Prize winner (and past Jew of the WeekPaul Ehrlich. In 1812, Landau presented four complex math problems at the International Congress of Mathematicians. The problems remain unsolved to this day. After over a decade teaching at the University of Göttingen, Landau joined the new Hebrew University. He was a co-founder of its math department, and played a key role in the construction of its Mathematics Institute. He taught himself Hebrew so that he could present a novel math lecture at the University’s grand opening in 1925. Two years later, Landau and his family made aliyah. He taught at the Hebrew University for several years before returning to Göttingen. After being removed from his position by the Nazis, Landau settled back in Berlin and occasionally traveled outside Germany to teach. He died four years later. Landau is renowned for his work on distribution of prime numbers, and on what is now called Landau Prime Ideal Theorem. It was once said that “no one was ever more passionately devoted to mathematics than Landau.”

Lev Landau

Edmund Landau is not to be confused with another Jewish math prodigy, Lev Davidovich Landau (1908-1968). Born in Azerbaijan (then part of Russia), Lev Landau started university at 13, published his first paper at 18, and got his PhD in math by 26. He received a scholarship from the Soviet government as well as the Rockefeller Foundation to travel and study abroad. He was soon fluent in German, French, Danish, and English. Much of his time was spent working in the lab of Nobel Prize winner (and past Jew of the WeekNiels Bohr. After returning to the Soviet Union, Landau was put at the head of the physics department at Kharkiv Institute of Physics and Technology. He taught at the University of Kharkiv, and at the same time worked with his student Evgeny Lifshitz on a ten-volume textbook. The Course of Theoretical Physics is still one of the most popular graduate physics textbooks used today. In 1938, Landau was arrested for comparing Stalin to the Nazis. After the intervention of other physicists, he was freed. Ironically, he won the Stalin Prize in 1949 and again in 1953, for his work on building the first Soviet nuclear bomb. Landau is famous for, among many other things, his theory of superconductivity, theory of Fermi liquid, for plasma physics, quantum electrodynamics, and most of all for his theory of superfluidity, which won him a Nobel Prize in 1962. Unfortunately, he couldn’t personally collect the prize because he was in a severe car accident and spent two months in a coma. He ultimately died from his injuries in 1968. Several years before this, his students established the Landau Institute for Theoretical Physics near Moscow. It is still one of the most prestigious physics labs in Russia. Landau was featured in the latest Google Doodle. There is a crater on the moon named after him.

The Torah: A Comprehensive Overview

Words of the Week

Both religion and science require a belief in God. For believers, God is in the beginning, and for physicists He is at the end of all considerations… To the former He is the foundation, to the latter, the crown of the edifice of every generalized world view.
– Max Planck

Google Doodle for January 22, 2019, the birthday of Lev Landau.

Jews of the Week: Rabbi Yehuda Bibas and Rabbi Yehuda Alkali

The Unbelievable True Story of the Real Founders of Zionism

Yehuda Aryeh Leon Bibas (1789-1852) was born in Gibralter to a long line of Sephardi rabbis. After his father’s untimely death, the young Bibas moved to Livorno to be raised by his grandfather. There, he studied both at the yeshiva and the university, becoming a rabbi and physician. He returned to Gibralter to head its yeshiva, attracting many students from across Europe and North Africa. In 1831, he was appointed chief rabbi of Corfu (a Greek island that had a large population in those days). Over the next decade, he understood the terrible predicament that Jews were in, and resolved that restoring an independent Jewish state in the Holy Land was the only solution. In 1839, he embarked on an international tour to encourage Jews all over the world to make aliyah. Some credit him with being the first prominent figure to do so in modern times. He was supported by the great Moses Montefiore, a wealthy Sephardic Jew who financed the first printing press and textile factory in the land of Israel, refurbished many of its Jewish holy sites, and established several Jewish agricultural colonies.

Rabbi Alkali

It was during Rabbi Bibas’ global tour that he met Rabbi Yehuda Alkali (1798-1878). Rabbi Alkali was born in Sarajevo and studied in Jerusalem under the tutelage of the holy city’s greatest Kabbalists. He went on to become the chief rabbi of Semlin, Serbia. Partly inspired by Serbia’s own nationalist movement, and further spurred by an 1840 blood libel against the Jews of Damascus, Rabbi Alkali was convinced that Jews must have a state of their own after meeting Rabbi Bibas. Rabbi Alkali established the Society of the Settlement of Eretz Yisrael and began a campaign to encourage Jews to settle in their ancestral home. Based on a famous prophecy in the Zohar, Rabbi Alkali proclaimed that the year 1840 would be the start of the process of Redemption, and that it would take one hundred years to accomplish. In an incredible prediction, he said that if Jews failed to take advantage of this spiritually-auspicious century, then by 1940 the Redemption would begin anyway, but in a much more difficult way, and only through “an outpouring of wrath will our dispersed be gathered”. History has eerily confirmed his prophecy. More amazing still, Rabbi Alkali published a book in 1857 titled Goral L’Adonai (“Lot for the Lord”) which clearly outlined the steps to re-establish a Jewish state in Israel. He presented one of the first copies of the book to his dear friend, and a member of his Semlin synagogue, named Simon Loeb Herzl. This happened to be the grandfather of Theodor Herzl, who would inherit the book. Scholars agree that Rabbi Alkali and his 1857 treatise played a major role in influencing Theodor Herzl, and thus the whole Zionist movement. In fact, it was Rabbi Alkali who first proposed restoring Hebrew as the primary spoken language of the Jews, who argued that the Holy Land should be legally purchased piece by piece, and that Jews must re-learn to become agriculturalists for the whole endeavour to work. (All three of these things would soon materialize.) Both Rabbi Bibas and Rabbi Alkali practiced what they preached and made aliyah to Israel. Rabbi Bibas first joined his disciples in Yaffo, then moved to Hebron and opened a library. He passed away shortly after, and is buried in Hebron’s Jewish Cemetery. Rabbi Alkali, meanwhile, founded a settlement near Jerusalem and lived there for the remainder of his life. He is buried in Jerusalem’s Mount of Olives Cemetery.

Did You Know These Famous People are Sephardic Jews?

Words of the Week

It was a city of wonders. Everything was written in Hebrew. People were speaking Hebrew. I thought, This is redemption. This is the city of the Messiah.
– Amnon Shamosh, Syrian-Israeli novelist, on first arriving to Tel-Aviv in 1937