Tag Archives: Quantum Physics

Jew of the Week: Steven Weinberg

Architect of the Standard Model of Physics

Steven Weinberg

Steven Weinberg (b. 1933) was born in New York to Jewish parents of Romanian and German heritage. He studied at the Bronx High School of Science, then did his undergraduate studies in physics at Cornell. After a brief stint at the Niels Bohr Institute in Denmark, he earned his PhD at Princeton in 1957. Weinberg first did research at Columbia University, then became a professor at UC Berkeley. While there, he started writing one of his most famous books, The Quantum Theory of Fields, as well as the popular textbook Gravitation and Cosmology. In 1966, Weinberg moved back east to teach at Harvard. The following year, as a visiting professor at MIT, he published his new model unifying electromagnetism and the nuclear forces. Part of this was proposing the existence of the Higgs boson (which was finally discovered in 2012). Weinberg’s model built on the work of his former high school classmate and fellow Jewish physicist, Sheldon Glashow. The two shared the 1979 Nobel Prize in Physics for their work (together with Pakistani physicist Abdus Salam). Over the years, Weinberg did research on—and greatly furthered our understanding of—gravity and cosmology, quantum physics and string theory, pions, leptons, and supersymmetry. His work has expanded nearly every aspect of modern physics and is among the most renowned scientists in the world. Weinberg has testified before Congress as an expert witness, and has written many popular articles and science books, among them The First Three Minutes and To Explain the World: The Discovery of Modern Science. He has been awarded 11 honourary degrees together with a long list of awards including the National Medal of Science. Weinberg is also a staunch supporter of Israel and has refused to speak at universities that boycott the Jewish State. Today, as he nears his 87th birthday, he continues to write and teach physics at the University of Texas at Austin.

UPDATE: Sadly, Steven Weinberg passed away on July 23rd, 2021.

Words of the Week

Given the history of the attacks on Israel and the oppressiveness and aggressiveness of other countries in the Middle East and elsewhere, boycotting Israel indicates a moral blindness for which it is hard to find any explanation other than antisemitism.
– Steven Weinberg

Jew of the Week: Yuval Ne’eman

Quantum Physicist and IDF Commander

Yuval Ne’eman

Yuval Ne’eman (1925-2006) was born in Tel-Aviv. His grandfather Aba Ne’eman had made aliyah to Yaffo from Lithuania as an eighteen year old, and was later among the first 66 families which settled and co-founded the city of Tel-Aviv. His grandfather also set up the city’s first electrical generator, and built some of its first factories. This may be what inspired Yuval to study mechanical engineering. He enrolled at Technion at age 15. At the same time, he joined the Haganah, and would fight valiantly in Israel’s Independence War, rising to the rank of commander of the Givati Brigade. Having spent several years living in Egypt with his parents as a child, Ne’eman spoke Arabic fluently and served as a liaison to Israel’s Mizrachi Jews, helping to settle them in the new country. In the mid-1950s, Ne’eman played a key role in the IDF’s operational command, developed its reverse mobilization system, and wrote Israel’s first defense doctrine. Meanwhile, he joined Israel’s Nuclear Energy Commission and oversaw the development of Israel’s nuclear capabilities. While serving as IDF attaché in London, he earned his PhD in physics. The following year he published his classification system for hadrons, laying the foundation for the quark model of quantum physics (proposed by recent Jews of the Week Murray Gell-Mann and George Zweig). Ne’eman returned to Israel in 1961 to direct the Soreq Nuclear Research Centre, one of the most important R&D facilities in Israel. He retired from the IDF with the rank of colonel, and founded Tel Aviv University’s School of Physics and Astronomy in 1965. Ne’eman directed it for the next seven years, then became president of he whole university. After this, he directed its Sackler Institute of Advanced Studies for nearly two decades. Ne’eman also co-directed the Center for Particle Theory at the University of Texas in Austin. A big believer in space exploration, he founded the Israel Space Agency in 1983 and chaired it until his death. He was chief scientist of Israel’s Defense Ministry in the 1970s, which opened the door for him to enter politics. Ne’eman founded the right-wing Tehiya party in response to Israel’s peace treaty with Egypt. He was elected to the Knesset in 1981 and became the country’s first Minister of Science and Technology. He continued to serve in the Knesset for over a decade. Among his many awards are the Israel Prize, the Wigner Medal, and the Albert Einstein Prize. He was also a member of the National Academy of Sciences. Ne’eman wrote a layman’s book on quantum physics called The Particle Hunters, which has been described as “the best guide to quantum physics at present available.”

Words of the Week

… Most of my people think as I do, but they’re afraid to say so… we suffer because of our Arab brothers, but we are also dependent on them. It’s a bizarre situation because the Arab countries don’t really care what happens to the Palestinian people. The only assistance that we have ever received from any country was from the ‘Zionist enemy.’
– Muhammad Zahrab, Palestinian Arab scholar 

Jews of the Week: Murray Gell-Mann and George Zweig

Discovering the Quark

Murray Gell-Mann

Murray Gell-Mann (1929-2019) was born in Manhattan to Austrian-Jewish immigrants from what is now Ukraine. Passionate about math and science from childhood, he graduated high school at the top of his class years ahead, and began studying at Yale when he was 14 on a full scholarship. He had his PhD from MIT by 22. He did research at multiple universities before moving to Caltech in 1955, where he became the youngest professor in the school’s history, and taught there until retirement. In 1958, together with Richard Feynman, he made a huge discovery with regards to the weak nuclear force (one of the four fundamental forces of nature). He went on to make many more important discoveries in the field of quantum physics. He is most famous for proposing the quark model – revolutionizing the world of sub-atomic particles – and for coining the term “quark”. Gell-Mann won a Nobel Prize in 1969 for his work. He is also credited with defending and popularizing string theory. In the 1960s, Gell-Mann was a co-founder of the Jason Division which advised the US military and helped to develop anti-ballistic missiles. He was a science adviser for presidents Nixon and Clinton, and was an editor of the Encyclopaedia Britannica. Later in life, he delved into “complexity science”, tackling some of the most challenging problems in nature (especially biology). He even co-founded the Santa Fe Institute for researching this kind of complex science. Gell-Mann wrote a best-selling science book called The Quark and the Jaguar, and inspired the Gell-Mann Amnesia effect (see below). Sadly, Gell-Mann passed away last month.

George Zweig

Gell-Mann was not alone in his proposal of the quark model. The same model was devised independently by George Zweig (b. 1937), who was born in Moscow to German-Jewish parents fleeing Nazi Germany. The family moved to the US in 1938 and settled in Detroit. Zweig earned a bachelor’s in math in 1959, and a PhD from Caltech in 1964 (a graduate student of Richard Feynman). He then went to work at the world-famous CERN, where he developed the quark model. (He called quarks “aces”, but Gell-Mann’s name stuck.) Zweig continued to do important work in quantum physics for some time before switching to neurobiology. He helped uncover how the cochlea in the ear transduces sounds into nerve impulses, and how the brain maps sounds, and made other key discoveries with regards to the amazing complexity of the ear. He also invented a device called a signiscope. Zweig was a professor at Caltech for over three decades. Nominated for a Nobel Prize, he has yet to win one, though he has won multiple other prestigious science prizes.

A Jewish Take on the Classic Moral Problem of the Trolley

Words of the Week

The Gell-Mann Amnesia effect is as follows: You open the newspaper to an article on some subject you know well… You read the article and see the journalist has absolutely no understanding of either the facts or the issues… you read with exasperation or amusement the multiple errors in a story, and then turn the page to national or international affairs, and read as if the rest of the newspaper was somehow more accurate about Palestine than the baloney you just read.
– Michael Crichton