# Add new comment

How is frequency related to pitch? Hear the music we love emerge from pure mathematical beats.

We talk to Stuart Johnston who uses mathematics to find out how noise pollution in the oceans impacts whales.

Generating electricity without the use of fossil fuels is not just an engineering and industrial challenge, it is also a huge mathematical challenge.

In this podcast author Coralie Colmez shares insights into her novel

*The irrational diary of Clara Valentine*.We talk to early career mathematicians who spent some of their summer holiday solving problems posed by industry — such as how to blend a perfect smoothie!

Thanks for the article, it's very interesting. One thing I noticed though is that the data points you have fitted your mathematical model to ignore Usain Bolt's achievements. According to your blue line, the world record is still 9.79 seconds. If you include Usain Bolt's marks of 9.69 followed by 9.58 (as well as some other intermediate marks by Asafa Powell I think), which have all been recorded still less than 100 years after 1912 along your x axis, then I think your model fit would be much less impressive, so if you added the latest data points and re-fitted a logistic curve the model would end up suggesting a maximum possible time of something lower (possibly around 9.40 seconds...)