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Transcript

Telephones

When was the first telephone created?

1876

How do phone calls work?

Negatives

Positives

Telephones through the decades

How smartphones affect our brains

Most expensive cell phone number

First smartphone

First telephone book

First payphone

Where it was inspired

Were the word comes from

Interesting facts about telephones

  • https://www.marca.com/en/lifestyle/how-to/2021/10/01/6157147246163fd7868b45fc.html
  • https://www.statefarm.com/simple-insights/family/effects-of-cell-phones
  • https://ext.vt.edu/content/dam/ext_vt_edu/topics/4h-youth/makers/files/ww1-science-behind-it-telephones.pdf
  • https://www.techwalla.com/articles/negative-effects-of-the-telephone
  • https://noticias.automoveis-online.com/multas-por-uso-do-telemovel-aumentam/
  • https://thefactfile.org/telephone-facts/2/
  • https://www.weforum.org/agenda/2018/03/remembering-first-smartphone-simon-ibm/
  • https://www.magrathea-telecom.co.uk/the-invention-of-the-first-ever-telephone/

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