![](https://pwb.princeton.edu/wp-content/uploads/sites/102/2020/07/WeRoar_Galbiati_wide_3000x1688_forLibsyn-1024x576.jpg)
We Roar: Dark matter physicist Cristian Galbiati describes how he conceived of a “very simple, cheap and effective ventilator” for COVID-19 patients that uses off-the-shelf components — and how his team went from design to production in just six weeks. https://bit.ly/2YUQS5q