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Rare video smuggled from North Korea showing soldiers at work in a construction site

Three guys running cement mixer and a shitton of dudes just standing around staring, I'm glad construction culture is the same around the world


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Published 10 months ago VXV
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Published 10 months ago VXV
14 views

Rare video smuggled from North Korea showing soldiers at work in a construction site

Three guys running cement mixer and a shitton of dudes just standing around staring, I'm glad construction culture is the same around the world

Put some Uranium 238 in a cloud chamber to see the radioactive particles [VIDEO]

Uranium-238 is the most common isotope of uranium found in nature, with a relative abundance of 99%. Unlike uranium-235, it is non-fissile, which means it cannot sustain a chain reaction in a thermal-neutron reactor. However, it is fissionable by fast neutrons, and is fertile, meaning it can be transmuted to fissile plutonium-239. 238U cannot support a chain reaction because inelastic scattering reduces neutron energy below the range where fast fission of one or more next-generation nuclei is probable. Doppler broadening of 238U's neutron absorption resonances, increasing absorption as fuel temperature increases, is also an essential negative feedback mechanism for reactor control.


Avatar
Published 10 months ago VXV
Avatar
Published 10 months ago VXV
28 views

Put some Uranium 238 in a cloud chamber to see the radioactive particles [VIDEO]

Uranium-238 is the most common isotope of uranium found in nature, with a relative abundance of 99%. Unlike uranium-235, it is non-fissile, which means it cannot sustain a chain reaction in a thermal-neutron reactor. However, it is fissionable by fast neutrons, and is fertile, meaning it can be transmuted to fissile plutonium-239. 238U cannot support a chain reaction because inelastic scattering reduces neutron energy below the range where fast fission of one or more next-generation nuclei is pr...