Robertson, Phillips, and the History of the Screwdriver
18:10
Duck(t) Tape: the World's Most Useful Tool.
19:54
The HIDDEN Screws of PRECISION
55:10
Best of The History Guy: Invention
9:46
How America RUINED the world's screws! (Robertson vs. Phillips)
27:11
You're Probably Wrong About Rainbows
15:58
The Amazing Recording History of Here Comes the Sun
18:28
O QUÃO BOM ERA O PELÉ?
18:33