I think I saw a preprint for this a week ago. Note that they are assuming exponential decay (see the appendix), so any time you wait will help some, and there isn't really a hard cut off. The...
I think I saw a preprint for this a week ago. Note that they are assuming exponential decay (see the appendix), so any time you wait will help some, and there isn't really a hard cut off.
The numbers for copper are better, which is why people in the rationalist community started putting copper tape on commonly touched surfaces. The half-life for copper is estimated as roughly a half-hour to an hour and they simplify that to saying "up to four hours".
Here's the actual study: Aerosol and Surface Stability of SARS-CoV-2 as Compared with SARS-CoV-1
I think I saw a preprint for this a week ago. Note that they are assuming exponential decay (see the appendix), so any time you wait will help some, and there isn't really a hard cut off.
The numbers for copper are better, which is why people in the rationalist community started putting copper tape on commonly touched surfaces. The half-life for copper is estimated as roughly a half-hour to an hour and they simplify that to saying "up to four hours".
Perhaps I missed the most important part, though, which is the word "aerosols". Here's a well-informed blogger who has questions.