Capacities of your specific chinese broken thermometer doesn't tell much about how scientists measured temperatures decades ago, does it.
And 2F spread ain't right, doctors use rather precise instruments that need some experience to be used correctly though, we have one at home too for kids since wife is a doctor (not a pediatrician but its manageable).
And 2F spread ain't right, doctors use rather precise instruments that need some experience to be used correctly though, we have one at home too for kids since wife is a doctor (not a pediatrician but its manageable).