# @science on Instagram

- **Type:** Image
- **Original URL:** https://www.instagram.com/p/DRXjZm4E5Xl
- **Gondola URL:** https://gondola.cc/posts/37233534-science-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/a1eb5c25b0.jpg
- **Posted:** 2025-11-22T18:00:27.000+00:00
- **Account Owner:** Science 🧬 (@science) — https://gondola.cc/science

## Caption

The uranium in the Hiroshima bomb was about 80 percent Uranium-235. One metric ton of natural uranium typically contains only 7 kilograms of Uranium-235. Of the 64 kilograms of uranium in the bomb, less than one kilogram underwent fission, and the entire energy of the explosion came from just over half a gram of matter that was converted to energy. That is about the weight of a butterfly.⁠
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Read more: link in our bio.⁠
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#hiroshima #nuclear #nuclearbomb #uranium #gramofmatter #energyconversion #physics #science

## Stats

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- **Likes:** 3,439
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- **Comments:** 72

## Tags

science, hiroshima, energyconversion, nuclear, physics, gramofmatter, nuclearbomb, uranium

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