I can hardly believe my eyes! I helped do some related research specifically concerning thin-film drainage from tubes, way back in my undergraduate days: https://doi.org/10.1016/j.expthermflusci.2018.04.015

Interesting!

For the wok example, I recommend just putting the wok back on the stove for a few seconds and have the thin water film evaporated, before quickly coating it with an oiled tissue, and store it hot. It takes 30 seconds max.

Interesting, but the headline was misleading -- this was about the time to get the first 90%. The last drop was not discussed. I was already intrigued about how one could know when a drop was the last drop.

Why didn't Professor tang just put the wok back on the stove for a few seconds. That'll dry out it out fast and you can see the film disappear.

Under careful supervision, the wok won't even get anywhere near 100C

Trump is going to forbid this wok research

Shake it off and it will finish drying a lot faster.