The most important screws EVER MADE!

19:54
The HIDDEN Screws of PRECISION

16:25
Robertson, Phillips, and the History of the Screwdriver

19:26
Enigma Makinesi nasıl çalışıyordu?

19:15
I Built an Entire Clock Mechanism to Prove this is Possible

18:00
The Babylonian Map of the World with Irving Finkel | Curator’s Corner S9 Ep5

31:46
Why do hurricane lanterns look like that?

14:54
The INSANE Precision of The National Institute of Standards and Technology

21:28