1. Justin Gatlin gatecrashes Usain Bolt's London 2017 farewell party in 100 meters : The Guardian article

        https://www.theguardian.com/sport/2017/aug/05/justin-gatlin-usain-bolt-100m-london-2017-world-athletics-championships

2. Winning moment : Men's 100 meters. Youtube video

3. Men's 100-Meters World records.  https://www.liveabout.com/mens-100-meter-world-records-3259154

4. The Telegraph : The 100m and 200m World record progressions, and how Usain Bold has rewritten history.

https://www.telegraph.co.uk/usain-bolt-worlds-fastest-man/0/the-100m-and-200m-world-record-progressions-and-how-usain-bolt-h/

Why do tightrope walkers carry long poles ?

Talk on the applications of mathematics to sport given by Professor John Barrow FRS (Cambridge) at Meet the Mathematicians 2011 event, held at the University of Birmingham, UK. Full hour-long talk.

You can watch the following video to have some details :

Articles :

1. Differences between olympic and paralympic medal tables:   http://eprints.lse.ac.uk/48603/1/blogs.lse.ac.uk-Differences_between_the_Olympic_and_Paralympic_medal_tables_may_tell_us_something_about_the_presence_.pdf
2. Paralympics 2016 : Four 1500 mrunners finish faster than Rio olympic gold medal winning time : https://www.independent.co.uk/sport/olympics/paralympics/paralympics-2016-abdellatif-baka-four-1500m-runners-finish-faster-olympic-gold-medal-winning-time-a7239821.html
3. Women in the Olympic and Paralympic games : an analysis of participation, leadership and medal coverage : https://www.issuelab.org/resource/women-in-the-2006-olympic-and-paralympic-winter-games-an-analysis-of-participation-leadership-and-media-coverage.html
4. Promoting children's health through physically active math classes : https://www.researchgate.net/profile/Michael_Beets/publication/24234719_Promoting_Children's_Health_Through_Physically_Active_Math_Classes_A_Pilot_Study/links/00b4952039da2b3754000000.pdf

5. Paralympics : What do the track bikes used by Olympic and Paralympic athletes have in common with the earliest penny farthing bicycles? Wheelchair racing is one of the most exciting disciplines in the Paralympics. It also overturns some of our assumptions about Olympic track athletics: looking at the trends in world record performances for elite able-bodied and wheelchair track athletes shows that they are both very well defined but quite surprisingly different..... See University of Cambridge website : https://sport.maths.org/content/category/tags/paralympics

6. Sports : Maths carrers.  see : http://www.mathscareers.org.uk/sport/

    The mathematics of football : http://www.mathscareers.org.uk/article/the-mathematics-of-football/

    How paralympics athletes are compared using Maths : http://www.mathscareers.org.uk/article/paralympic-athletes-compared-maths/

 7. Maths and health :

     The MATH of FITNESS : see attached file

Ski jump subject

Different ciphers algorithms :

Cryptography 101 : the basics (video) : basic terminology in cryptography, including what is a ciphertext, plaintext, keys, public key crypto, and private key crypto

The enigma machine :

Article : Morse et Wheastone (site : visite Arts et métiers.free).