The document discusses different types of nuclear weapons such as fission and fusion bombs. It describes the gun and implosion methods used for early fission bombs and the Teller-Ulam design commonly used for thermonuclear weapons. The effects of a nuclear explosion are outlined as blast, thermal radiation, ionizing radiation, and residual radiation. Details are provided on nuclear testing conducted by various countries and images are shown from early tests. Nuclear arms control treaties like the Limited Test Ban Treaty, Nuclear Non-Proliferation Treaty, and Comprehensive Nuclear Test Ban Treaty are summarized.

1. Nuclear Proliferation By Brad Dougherty

2. How Nuclear Bombs Work

8. Nuclear Testing

12. Nuclear Test Images Operation Trinity Operation Crossroads Able & Baker

13. Nuclear Arms Control

18. The End