207 karma · joined August 27, 2013
And most if not all scientific and engineering models spread properties across a group of objects and use averages. R_0 is an average. And it's the average behavior that matters here
In a well tested population, you might be able to focus interventions on infected people and their contacts. In the US population, the people most likely to spread the disease are those who interact most with other people. That means getting those people to reduce their interaction rate.
It's a semi-empirical model, as are many if not most models used to make decisions.
I do still recommend the original source I used: The Concise Guide to American Aircraft of World War II by David Mondey. It's great.
"Wings generate lift by changing the velocity of the flow around them" seems general and correct but the why part is pretty tricky without notions of continuity and conservation laws. And vorticity helps a lot, too.
One less death relative to what?
Right? I mean, just consider the B-2 and F-117 exhausts and the amount of work done to reduce their thermal signatures.
Edit: To be clear, I wasn't saying it was lower.
I'm uncomfortable with the idea that a university degree is entirely about workforce skills.
Yeah, I know, I know.
2000mg/kg = 2, right?
Like 2kg of medicine for every one kg of body mass? That seems impossible to consume. Even 0.1 kg/kg seems really, really high.
Or is mg here used for micrograms rather than milligrams? So it's actually 2000 μg/kg.
Is it reasonable to simply pick everyone up and move them? That seems at least plausible, though I'd expect the cost to still fall on the Federal government.
Dash 80 was a nickname for that particular plane, it's model number is 367-80. The 707 is a slightly different aircraft that generally isn't referred to as a "Dash 80".
The Dash 80 was the prototype for the 707, but strictly speaking, it's model number isn't 707.