jonka heba hussein 17 vuotta sitten
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Karl Popper
The concept of falsifiability is central to distinguishing scientific theories from non-scientific ones. The idea is that for a theory to be considered scientific, it must be testable and capable of being proven false.
![Cholera and public health reform 1830 - 75 [Britain]](/image/469ee2a99e664f8092260ebb2af75f23/cholera-and-public-health-reform-1830-75-britain.png "Cholera and public health reform 1830 - 75 [Britain]")
