https://en.wikipedia.org/wiki/Anvil_firing
https://github.com/hadley/ggplot2-book/blob/master/springer/contract-2.pdf
https://jenkins.io/blog/2019/01/08/mpl-modular-pipeline-library/
https://www.nature.com/news/cosmologist-claims-universe-may-not-be-expanding-1.13379
https://onemileatatime.com/american-airlines-737-max/
https://thehumanunderground.wordpress.com/2016/07/17/what-makes-a-face-attractive-its-all-in-the-tongue/
https://www.prospectmagazine.co.uk/magazine/the-invigorating-strangeness-of-friedrich-nietzsche