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Hiroshima

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Fireball Forge: A New Iron-Silicon Alloy Emerges from Hiroshima Debris
science19 days ago

Fireball Forge: A New Iron-Silicon Alloy Emerges from Hiroshima Debris

Scientists studying Hiroshima fallout discovered a previously unknown iron–silicon alloy inside hiroshimaites, glassy particles formed in the fireball. The alloy’s structure is near-quasicrystalline and likely crystallized from rapidly cooled metallic vapors—a process not yet reproducible in labs. Similar blast-derived quasicrystals were found in Trinity’s trinitite, underscoring how extreme detonations can create unique materials. These materials serve as a time capsule for rapid alloy formation and could inform future alloy design and planetary impact research, per the Science Advances study led by Luca Bindi.

via Yahoo|
#hiroshima#hiroshimaites#iron-silicon-alloy
Newly Found Hiroshima Memoir Offers Grim Eyewitness of 8:15 Blast and a Pastor’s Peace Effort
world-news19 days ago

Newly Found Hiroshima Memoir Offers Grim Eyewitness of 8:15 Blast and a Pastor’s Peace Effort

On Hiroshima's 81st anniversary, Kiyoshi Tanimoto's long-lost English memoir Hiroshima 8:15 The Lost Memoir has surfaced in Yale archives via John Hersey's collection, offering a fresh eyewitness account of the blast and the minister's postwar relief work. The memoir describes the sharp flash, a tremendous explosion, and the devastation as his family was buried under rubble; it also recounts survivors' suffering, including radiation sickness, and his later peace activism with the Hiroshima Maidens. Found by Hersey's grandson Cannon Hersey and filmmaker Taku Nishimae, the manuscript adds to Hersey's 1946 Hiroshima coverage and is set to become a feature film at the 2028 Cannes festival, with Takehiro Hira attached to star as Tanimoto.

via New York Post|
#eyewitness-account#hiroshima#kiyoshi-tanimoto
Hiroshima fallout reveals a never-before-seen metal alloy
science24 days ago

Hiroshima fallout reveals a never-before-seen metal alloy

Scientists analyzing fallout droplets from Hiroshima Bay uncovered a new multicomponent iron-based alloy with an atomic structure not seen in conventional materials. The alloy formed under extreme, rapid cooling during the 1945 blast, and researchers say anthropogenic events can create previously unknown materials. The finding could inspire lighter, more heat-resistant materials and enhance understanding of nuclear fallout chemistry.

via nypost.com|
#alloys#fallout#hiroshima
Hiroshima blast spawns a brand-new metallic alloy, scientists report
science26 days ago

Hiroshima blast spawns a brand-new metallic alloy, scientists report

Researchers analyzing debris from the 1945 Hiroshima bombing have identified a previously unseen metallic alloy formed under the explosion’s extreme conditions. The alloy, consisting of iron, chromium, nickel, manganese, molybdenum, silicon and aluminum in a unique cubic lattice, acts like a tiny physical archive of the blast. This micro-scale “experiment” helps scientists understand how matter can organize under violent events and may inform broader studies of unusual materials such as quasicrystals and other extreme-condition formations.

via Scientific American|
#alloy#extreme-conditions#hiroshima
Silicon-Rich Multicomponent Alloy Found in Hiroshima Blast Debris
physics-and-chemistry27 days ago

Silicon-Rich Multicomponent Alloy Found in Hiroshima Blast Debris

A Science Advances study reports the discovery of a previously unknown, silicon-rich multicomponent alloy formed inside microscopic grains called ‘hiroshimaites’ created by the Hiroshima atomic blast. The highly ordered tiny crystal demonstrates that extreme, rapid quenching from nuclear detonations can forge new crystalline materials, potentially encoding diagnostic information about the device, environment, and detonation conditions, with implications for nuclear forensics and materials science.

via Gizmodo|
#hiroshima#hiroshimaites#multicomponent-alloy
Global Calls for Peace Amid Rising Asian Arms Race and Nuclear Threats
world1 year ago

Global Calls for Peace Amid Rising Asian Arms Race and Nuclear Threats

A-bomb survivors in Japan, led by Toshiyuki Mimaki, are advocating for nuclear disarmament amid rising tensions and an arms race in Asia, while Japan balances its moral stance against nuclear weapons with reliance on U.S. nuclear protection. The aging survivor community plans a final campaign to push for abolition, highlighting the ongoing global struggle over nuclear deterrence and disarmament.

via NPR|
#arms-race#hibakusha#hiroshima
Hiroshima Survivors Mark 80 Years Amid Rising Nuclear Threats
world1 year ago

Hiroshima Survivors Mark 80 Years Amid Rising Nuclear Threats

On the 80th anniversary of the Hiroshima atomic bombing, survivors and global leaders expressed concern over the rising nuclear threat and the support for nuclear deterrence, emphasizing the need for nuclear disarmament and remembrance of the tragedy. Despite international calls for peace, Japan maintains a stance supporting U.S. nuclear protection, while survivors advocate for a nuclear-free world.

via NPR|
#anniversary#hiroshima#nuclear-threat