RT @lexfridman: Air flow from a person breathing, talking, and coughing, with & without face mask. Visualization by @LaVisionInc https://t.… 0 atbildes
Jurģis Ķiršakmens (2020-04-03 22:49:44) |
RT @lexfridman: Air flow from a person breathing, talking, and coughing, with & without face mask. Visualization by @LaVisionInc https://t.… |