Fluorine - Periodic Table of Videos
Why Hacker News recommends it
Recommended in fluoride and fluorine threads as a short, fun demonstration of how nasty fluorine is.
What it is
Periodic Videos visits a fluorine expert to show how reactive the element is in action. It also includes a discussion of fluoride and tooth enamel.
Recommended by 4 HN commenters across 3 different months, 2015 to 2021.
What Hacker News said
Recommends gtrubetskoy · 2015-07 · on “Water Fluoridation May Not Prevent Cavities, Scientific Review Shows”
An educational video from Univ. of Nottingham, if you don't know how nasty (and fun) Fluorine is: [this video] (and they explain the tooth enamel theory towards the end as well).
Recommends CaliforniaKarl · 2018-05 · on “Hydrofluoric Acid: An Invisible Fire (1996)”
Every time I hear anything about Flourine, I’m reminded of “Sand Won’t Save You This Time” [LINK] I also suggest watching the Periodic Table of Videos episode on Flourine: [this video]
Recommends toss1 · 2018-05 · on “Hydrofluoric Acid: An Invisible Fire (1996)”
This is a good little interesting video on fluorine here (previously linked by someone else), and the ending is the best description of tin fluoride for teeth I've ever seen -- well worth the ~6min [this video] (edit: added link)
Recommends AndrewOMartin · 2021-05 · on “Trials begin on lozenge that rebuilds tooth enamel”
Just out of interest, and not detracting from what you're saying, but normal fluoride also forms a compound (flouro-apetite) more resistant to avoid than normal tooth material (appetite). At least according to this chemist: [this video] (tooth chat at 5:10, but the whole video is interesting)