PSA: I can’t believe this needs to be said, but here goes: If you fully enclose an outdoor space, it becomes an indoor space. That’s it, that’s the tweet.
Change “Smoking” to “#COVID” and voila, you have a safe, ventilated outdoor space (borrowed from Smoke Free UK regulations that went into affect in 2007: mikoengineering.co.uk/blog/everythin…). @aoc @Ilhan @RepJimmyPanetta @KamalaHarris @BernieSanders please please spread the word. 
I’m a scientist/engineer that specializes in fluid mechanics (the underlying physics that describes air/water motion), so I think about these things. @APSphysics #APSDFD2020 is happening now so I’ll share anything relevant to this thread. For example... #sciencesaveslives
https://twitter.com/KakaniKatija/status/1310618699858980868
Numerical simulations (work from @stonybrooku #apsdfd2020) show that without masks and airflow, #COVID19 aerosol particles can travel 8 ft away; with non-surgical masks, 2.5 ft away. Click the link to see visualizations. gfm.aps.org/meetings/dfd-2…
@MIT's Lydia Bourouiba, a leading researcher on fluid mechanics of disease transmission, has given a must-watch @TEDTalks on this very topic. She also just delivered a keynote at #apsdfd2020. #WomeninScience tedmed.com/talks/show?id=…
We use similar visualization techniques in our work @MBARI_News @BioinspirLab, but underwater with #robots #lasers to illuminate the movement of suspended particles in the #ocean. Here's a giant #larvacean feeding inside their mucus #snotpalace. More info: nyti.ms/3m0Xh8b
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