Why plague doctors wore beaked masks
4:56
How dangerous was it to be a jester? - Beatrice K. Otto
5:31
What really happened during the Salem Witch Trials - Brian A. Pavlac
8:17
How the plague doctor's mask protected them.
16:26
Mysterious Deaths Doctors Can't Explain
4:47
Why is it so dangerous to step on a rusty nail? - Louise Thwaites
4:12
Why you shouldn't worry about pooping once a day | Body Stuff with Dr. Jen Gunter | TED
22:03
Anthrax: Nature’s Perfect Bioweapon
18:22