Nuclear fission chain reaction and fusion

Neutrons splitting uranium-235 nuclei: the multiplication factor k decides whether the chain reaction dies, is steady or explodes; control rods absorb neutrons. Compare with D–T fusion and the Coulomb barrier.

About this experiment

What you do in the lab

Change the controls and watch the physics behave in real time in 3D. Live readouts and graphs show the numbers behind it, and the Learn tab has the theory, procedure, observations and viva questions. Works on a phone or a laptop, in English and Hindi.

Topics: nuclear fission · chain reaction · multiplication factor · control rods · fusion · reactor

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