# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/emilio-segre
# Generated: 2026-09-02T06:10:10.522Z

schema: https://schema.org/Person
url: "https://fame.am/person/emilio-segre"
name: "Emilio Segrè"
slug: "emilio-segre"
description: "He discovered two elements that don't occur in nature and the antiproton — matter's shadow twin — work that earned him the 1959 Nobel Prize in Physics. He also helped build the bomb dropped on Nagasaki, then spent the rest of his life documenting the scientists who reshaped the world."
tagline: "Italian physicist and Nobel laureate"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Segre.jpg"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1905-02-01"
deathDate: "1989-04-22"
livingStatus: "DECEASED"
scores:
  popularity:           59.35
  momentum:             0
  historical:           24.17946
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  70
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
tags:
  - name: "Scientists"
    slug: "scientists"
  - name: "Scientist"
    slug: "scientist"
  - name: "Physics"
    slug: "physics"
  - name: "Literature"
    slug: "literature"
  - name: "United States"
    slug: "united-states"
  - name: "Americas"
    slug: "americas"
  - name: "20th Century"
    slug: "20th-century"
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    title: "امیلیو گینو سگر"
    type:  "WIKIPEDIA"
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    title: "এমিলিও জিনো সেগরে"
    type:  "WIKIPEDIA"
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    title: "Emilio Gino Segrè"
    type:  "WIKIPEDIA"
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    title: "Emilio Segrè"
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    title: "Emilio Segrè"
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    title: "Emilio Segrè"
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    title: "امیلیو سگره"
    type:  "WIKIPEDIA"
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    title: "Emilio Gino Segrè"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Emilio_Segr%C3%A8"
    title: "Emilio Segrè"
    type:  "WIKIPEDIA"
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    title: "Emilio Segrè"
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    title: "Emilio Segrè"
    type:  "WIKIPEDIA"
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    type:  "WIKIPEDIA"
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    title: "Wikiquote"
    type:  "WEBSITE"
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    title: "Wikiquote"
    type:  "WEBSITE"
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    title: "Wikiquote"
    type:  "WEBSITE"
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    title: "إميليو سيغري"
    type:  "WIKIPEDIA"

# bio (long form, separated for readability)
bio: |
  Born in Tivoli in 1905, Segrè switched from engineering to physics in 1927 and joined the Via Panisperna boys in Rome, where he became assistant professor by 1932. In 1937, examining a molybdenum strip from Berkeley's cyclotron, he proved the anomalous radiation came from technetium — the first element made by human hands. A year later, Mussolini's antisemitic laws caught him mid-visit to California; Lawrence offered him an underpaid research post, and he stayed. At Berkeley and then Los Alamos, he helped discover astatine and plutonium-239, and in April 1944 he found that the Thin Man weapon design wouldn't work — a discovery that redirected the Manhattan Project. After the war he returned to Berkeley as a professor, and in 1955 co-led the team that found the antiproton, winning the Nobel four years later. He photographed it all, and the archive now carries his name.