Astrophysicist Carl Sagan wrote of Ptolemy: “His Earth - centered universe held sway for 1,500 years, a reminder that intellectual capacity is no guarantee against being dead wrong. ” Today scientists face similar challenges in their pursuits.
შეძლებენ ოდესმე ისინი, ყველაფერს დამაკმაყოფილებელი ახსნა მოუძებნონ?