43:34

Radiometric Dating - Part 2

24:24

Correlation - Part 2

22:59

O Paradoxo da Cúpula: Uma Brecha nas Leis de Newton

21:53

Evolutionary Relationships of Vertebrates

1:22:50

Atomic Physics

26:33

Interpreting Geologic Maps - Part 2

7:10

Radiometric Dating

25:26

Patterns in Evolution - Part 2