Jakarta –
The atomic explosion in Hiroshima in August 1945 not only left behind destruction and death, but also formed dense matter in the Solar System. Where does it come from?
A recent study by Nathan Asset and his team from Université Paris Cité, France, reveals a link between Hiroshima debris dust and the process of forming the first solid object in the Solar System, called Hiroshima glass. The glass comes from atomic bomb material, buildings and the natural environment that evaporated as a result of the bombing of Hiroshima.
Glass in the Solar System from the Hiroshima Bombing
Results of observations of Hiroshima glass with a microscope. Photo: Asset et al (2024)
The research team identified four types of glass in the Hiroshima bombing debris, including melitic, anorthocytic, soda-lime, and silica. Based on reconstructions of the formation of these glasses, they stated the bomb exploded over the city at extreme temperatures and pressure. Thermal waves hit the ground at high temperatures. In a short time, the city material evaporates and mixes with other elements to form various types of glass.
There is some difficulty in estimating the actual amount of each component vaporized. Because, not all buildings were destroyed. For example, some that were built to withstand earthquakes managed to survive the explosion so that some of the concrete, iron, and brick did not evaporate.
Additionally, different materials require different amounts of energy to evaporate. These materials form condensation nuclei at different stages of the glass formation process. For example, river water inclusions will last longer because they require less energy than concrete.
Forms in less than 20 minutes
Hiroshima glass has a similar composition of silica and oxygen with calcium and aluminum inclusions. The research team concluded that glass formation begins with the mellitic type, then anorthocytic, soda-limeand finally almost pure silica.
Although the formation environment is different for calcium and aluminum inclusions, understanding the gas-solid transition process helps humans know more about the origins and evolution of the Solar System. On the other hand, researchers admit that the Hiroshima glass formation event only took less than 20 minutes, whereas the evolution of the Solar System took years.
Watch the video “See the enormity of the Hiroshima atomic bomb explosion, the most cruel bombing”
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2024-03-14 02:30:00
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