ScienceWeekly roundup - The biggest numbers yetTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceGabriel Borrud and Conor Dillon06/24/2020June 24, 2020Listen to DW's 30-minute science show. In this episode, Germany's R number triples, the world sets a (bad) coronavirus record, facemask filaments hit absurd speeds, the lab with a billion masks, and your immune system.https://p.dw.com/p/3eGkfAdvertisement