Twitter proof: not too hairy


In this post I will show that some londoners share more than their native language and their propension to get sunburnt. For that we need to notice that there are more than $8.5$ million londoners and that the average human has $100,000$ hairs in the head.

Assertion: there are, at least, $9$ londoners with the exact same number of hairs in their head.

Twitter proof: given the facts above, there are more than $8$ million londoners with less than $1$ million hairs in their head. By the pigeonhole principle this means at least $9$ londoners have the exact same number of hairs.
Neste post vamos mostrar que alguns londrinos partilham mais do que o inglês como língua materna e a propensão para apanhar escaldões. Para isso é preciso notar que há mais de $8.5$ milhões de londrinos e que o ser humano médio tem $100,000$ cabelos na sua cabeça.

Asserção: há pelo menos $9$ londrinos com exatamente o mesmo número de cabelos na cabeça.

Prova num tweet: pelos factos acima, extistem mais de $8$ milhões de londrinos com menos de $1$ milhão de cabelos na cabeça. Assim, pelo princípio do pombal há pelo menos $9$ londrinos com o mesmo número de cabelos.

  - RGS

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