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Abraham Zarem, one of the last surviving Manhattan Project scientists, dies at 106
(JTA) — Abraham Zarem was 28 when he joined the Manhattan Project, the vast U.S. government effort to develop the atom bomb.
Engineers like him gathered in secret laboratories in New Mexico, California, New York City and elsewhere to provide the practical know-how the theorists lacked.
“‘They were geniuses, but didn’t know how to build a f—king thing,’” Zarem recalled, according to his longtime rabbi at Sinai Temple in Los Angeles, David Wolpe.
Zaum, who went on to a distinguished career in technology, business development and leadership management training, died March 8 in Los Angeles. He was 106, and one of the last surviving members of the army of scientists, technicians, bureaucrats and clerks who helped build the weapon that would force Japan’s surrender in World War II and usher in the Atomic Age.
After the war, Zarem joined the staff of the United States Naval Ordnance Test Station at Pasadena, where as head of the electrical section of the physical research division he developed a high-speed camera used to study intense light sources and other phenomena. Popular Mechanics called the Zarem camera — 25,000 times faster than any movie camera then available — a “miracle.”
In 1963, Zarem served as senior vice president of Xerox, leaving in 1970 to launch a consulting business. He returned to Xerox as founder and CEO of its Xerox Development Corporation in 1975. He later served as founder and managing director of Frontier Associates, a technology consultancy.
Born in Chicago on March 7, 1917, Zarem was valedictorian of his undergraduate class at the Armour Institute of Technology (now the Illinois Institute of Technology), and earned his doctorate on the physical properties of the electric spark at the California Institute of Technology. He headed the Stanford University Research Institute in Los Angeles while still in his 30s.
Later he served as distinguished senior advisor for Neuroscience Technology Transfer for the UCLA Brain Research Institute and a member of the Urology Advisory Board of the UCLA Geffen School of Medicine. Additionally, he served as distinguished visiting executive in Science and Technology for Caltech’s Jet Propulsion Laboratory.
One of Zarem’s companies, Electro-Optical Systems, developed the “world’s first practical ion engine” — an experimental high-energy thruster for spacecraft. It now resides in the Smithsonian Institute in Washington, D.C.
Zarem was also a regular at Temple Sinai, where Wolpe said Zarem mentored him as a young rabbi. Zarem and his wife Esther were generous contributors to the congregation; Wolpe remembered Zarem chanting from the book of Jonah on Yom Kippur when he was 99.
“Abe Zarem was a brilliant, buoyant, passionate, pious and philanthropic person,” Wolpe told the Jewish Telegraphic Agency this week. “He had a central role in some of the key scientific events of human history — the atomic bomb, the moon landing — and yet took an interest in everyone lucky enough to meet him. Abe was truly yachid b’mino — unique in his time. He will be greatly missed.”
Unlike with some of his collaborators on the Manhattan Project, there is no public record of Zarem grappling publicly with the moral implications of the weapon he helped develop. Years after their war work at Caltech, a man who worked under Zarem as a lab assistant said he felt no guilt, because without the detonations at Hiroshima and Nagasaki, he told a local newspaper, “We would have lost 500,000 Americans in the invasion of Japan.”
But Zarem did go on the record in 1952 on a different topic, in advice he shared with a labor and management magazine: “Keep your feet warm, and your head cool. And watch out for the hotheads with cold feet.”
His survivors include his children, Janet, David and Mark.
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Netanyahu: ‘Our Forces Are Striking the Heart of Tehran With Increasing Strength’
Israeli Prime Minister Benjamin Netanyahu participates in the state memorial ceremony for the fallen of the Iron Swords War on Mount Herzl, in Jerusalem, Oct. 16, 2025. Photo: Alex Kolomoisky/Pool via REUTERS
i24 News – Israeli Prime Minister Benjamin Netanyahu stated that Israeli forces had “eliminated the dictator Ali Khamenei” along with dozens of senior officials of Iran’s regime during a statement delivered from the roof of the Kirya, Israel’s defense headquarters.
“Yesterday, we eliminated the dictator Khamenei. Along with him, dozens of senior officials from the oppressive regime were eliminated,” Netanyahu said after a meeting with the Minister of Defense, the Chief of Staff, and the Director of Mossad. He added that he had issued instructions to continue the offensive.
According to Netanyahu, Israeli forces are “now striking at the heart of Tehran with increasing intensity,” a campaign he said will “increase further in the days to come.”
The Prime Minister also acknowledged the toll of the conflict on Israel, calling recent days “painful” and offering condolences to the families of victims in Tel Aviv and Beit Shemesh, while wishing a speedy recovery to those injured.
Netanyahu emphasized that the operation mobilizes “the full power of the Israel Defense Forces, like never before,” in order to “guarantee our existence and our future.” He also highlighted US support, noting “the assistance of my friend, the President of the United States, Donald Trump, and of the American military.”
“This combination of forces allows us to do what I have hoped to accomplish for 40 years: strike the terrorist regime right in the face,” Netanyahu concluded. “I promised it — and we will keep our word.”
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Trump Says Iran Military Operations Are ‘Ahead of Schedule,’ CNBC Reports
U.S. President Donald Trump speaks with White House Chief of Staff Susie Wiles and Secretary of State Marco Rubio during military operations in Iran, at Trump’s Mar-a-Lago resort in Palm Beach, Florida, U.S. February 28, 2026. The White House/Social Media/Handout via REUTERS
US President Donald Trump told CNBC on Sunday that US military operations against Iran are “ahead of schedule.”
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Iranian Missile Strike on Beit Shemesh in Israel Kills 9
Emergency personnel work at the site of an Iranian strike, after Iran launched missile barrages following attacks by the US and Israel on Saturday, in Beit Shemesh, Israel, March 1, 2026. Photo: REUTERS/Ammar Awad
An Iranian missile strike hit the Israeli city of Beit Shemesh on Sunday, killing nine people and wounding dozens, in what authorities described as a direct impact on a public bomb shelter.
A ballistic missile leveled the bomb shelter, leaving a large crater in its wake. Most, if not all, of those killed had been taking cover inside the shelter when it hit, Jerusalem Police Deputy Commissioner Avshalom Peled said at the impact scene.
Those in critical condition were airlifted to Shaare Zedek Medical Center, a spokesperson for the Israel Defense Forces (IDF) said.
At least 20 people were still missing late on Sunday afternoon local time.
As you read this, an Iranian missile has just struck a residential neighborhood in Beit Shemesh, Israel, only 30 kilometers/about 18 miles from Jerusalem.
Nine people are dead.
More than 20 are wounded, including children. A
public shelter collapsed from the direct hit. An… pic.twitter.com/mEVDlPEqgf
— Ella Kenan (@EllaTravelsLove) March 1, 2026
Several buildings surrounding the shelter in Beit Shemesh, which is west of Jerusalem, were also damaged in the attack, with two collapsing entirely. A synagogue was also destroyed.
Emergency crews from Magen David Adom, ZAKA, and United Hatzalah joined fire and rescue units at the site, combing damaged buildings and debris for possible survivors. Many people were trapped under rubble or inside apartments, first responders said.
The Iranian Regime directly fired missiles toward the civilian neighborhood of Beit Shemesh, killing innocent civilians.
The Iranian regime purposely targets civilian targets while we precisely target terror targets. This is who we’re operating against—a regime who uses… pic.twitter.com/9W8Fp4T2tH
— Israel Defense Forces (@IDF) March 1, 2026
Chaim Wingarten, deputy director of operations at rescue organization ZAKA, described the scenes as “very difficult.”
“When I arrived, it was a huge chaos, with wounded people everywhere,” he said.
The strike was part of a larger volley that triggered air-raid sirens across the country. A man in his fifties was wounded by shrapnel elsewhere in central Israel.
IDF foreign media spokesman Lt. Col. Nadav Shoshani charged Iran with deliberately firing at civilians. “We know this is their strategy,” he said, adding that Israel would do “everything in our power to remove these capabilities from this bloodthirsty terrorist regime.”
The Beit Shemesh hit marked the highest single-incident death toll inside Israel since the confrontation with Iran began a day earlier. The previous peak came during the 12-day war in June 2025, when a missile slammed into an apartment block in Bat Yam and killed nine people.
The Beit Shemesh strike came a day after US and Israeli forces struck a compound in Tehran killing senior Iranian officials, including Supreme Leader Ayatollah Ali Khamenei, whose death was later announced on Iranian state television.
In an interview with Fox News on Sunday, Trump said 48 Iranian leaders were killed in the strikes. “Nobody can believe the success we’re having; 48 leaders are gone in one shot. And it’s moving along rapidly,” he said.
Separately, the American president told CNBC that the US operation was “ahead of schedule.”
Thousands of Iranians braved the strikes and took to the streets to celebrate Khamenei’s death on Saturday evening. Many people stood on balconies and at windows chanting “freedom, freedom,” The New York Times reported. People in the Iranian city of Shiraz were “abandoning their cars for an impromptu dance party, whistling, cheering, clapping, and screaming with joy. In many videos, celebrants joined together in a cheer that is typically reserved for weddings, symbolizing pure joy,” the report said.
GeoConfirmed Iran.
People chanting – Celebrations through the Foolad Shahr area in Isfahan with joy and jubilation over the killing of Khamenei.
Rough location – 32.48169, 51.39167
F9JR+MMF Fuladshahr, Isfahan Province, IranGeoLocated by @Mitch_Ulrich
Geolocation:… https://t.co/iv9TlSPPfS
— GeoConfirmed (@GeoConfirmed) February 28, 2026
Can you hear the joy in his voice?
“I am dreaming, hello world!” pic.twitter.com/ICq77zBerv— William Mehrvarz (@WilliamMehrvarz) March 1, 2026
Iran retaliated by firing repeated waves of missiles and drones, with launches aimed not only at Israel but also at US bases in the Middle East, including Qatar, Kuwait, the United Arab Emirates, and Bahrain. Iran on Sunday morning also launched two missiles at Cyprus, where thousands of British military personnel are stationed, which fell short.
Later in the afternoon, the US acknowledged its first losses with US Central Command, saying three American service members were killed and five were seriously wounded during the operations in Iran.