01:070:111 Lecture Notes - Lecture 28: Absorbed Dose, Kilogram, Cuban Missile Crisis
27 Mar 2018
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October 11, 1939- einstein letter to roosevelt. Gadget- plutonium device tested at trinity test site. 70,000 died right away, us department of energy. Up to 166,000 by within a few months. Several thousand times more powerful than little boy or fat man. Us is first country to test a nuclear weapon. Between july 1945-september 1992, us conducted 1054 nuclear tests. Cuban missile crisis- closest moment to nuclear exchange between us and. Different kinds of ionizing radiation: alpha, gamma, x-rays. Some are really bad- like alpha, 20 times as damaging. Some are easily stopped, but some are hard to stop like gamma. Joules- 1000 houles is about the maximum amount of solar radiation absorbed by 1 square meter of the earth in 1 second. Radiation, pollution- not all roses: weak-sighted carp, partially-albino swallows. Some radiation has a short half life goes away quickly.
