Kenya’s Mary Keitany won the 2017 London Marathon with a time of 2:17:01—the fastest in a women-only marathon.Daniel Leal-Olivas/AFP/Getty Images There are so many real-world physics problems involved in running. Lots of physicists have been inspired, for instance, by the crazy-fast speeds of Usain Bolt. Just take a look […]

Click here to view original web page at www.wired.com