Science by Feynman

We’ve learned from experience that the truth will come out. Other experimenters will repeat your experiment and find out whether you were wrong or right. ...

Eratosthenes by Sagan

Amicus Plato, sed magis amica veritas. Miguel de Cervantes, Don Quichotte (1605). How did we find out that Earth is a sphere? How in the same moment a stick in ...