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Zombie Attack: A Mathematical Model of Infection

In one of the American publishers came out a curious collection of scientific papers on the modeling of infectious diseases . One of the articles in the collection (18-page PDF ) is devoted to a very “relevant” topic today - the modeling of a zombie attack. [When Zombies Attack !: Smith?].

Scientists have compiled a basic mathematical model of the propagation speed of a zombie attack, depending on the number of inhabitants.


S - healthy people [susceptibles], Z - zombies, R - dead people and destroyed zombies by removing the head [removed].
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According to the formula, in a city of 500,000 inhabitants, the number of zombies will exceed the number of healthy people in about three days.

Scientists believe that the attack of a zombie is almost impossible to stop; this requires very aggressive countermeasures at the very beginning of the infection. Neither quarantine nor drug treatment is suitable. The only way out is mass destruction (not surprisingly, one of the sources in the scientific work is the game Resident Evil). If time does not take action, the epidemic can take a global character and "lead to the collapse of human civilization, because every person on Earth will either be infected or dead."

We add that the authors of the scientific work are Canadian mathematics students headed by the professor of mathematics from the University of Ottawa, Robert Smith? , his name is spelled that way - with a question mark at the end (in some countries this is allowed), see pruflink.

Source: https://habr.com/ru/post/67275/


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