Hong Kong friends, before you get too scared about the rumors of "fluorescent powder" being used by police, please remember that laundry detergent glows brightly under a blacklight.https://www.youtube.com/watch?v=ewp-rngZtTU …
-
Show this thread
-
-
Replying to @cloudyip
I am not saying laundry detergent is the entire explanation. I don't want people at home to get scared because they see their clothing shine under a blacklight. Many things shine under UV and can mark skin.
1 reply 1 retweet 1 like -
For example, petroleum jelly, and skin products that contain it: http://www.webexhibits.org/causesofcolor/11F.html …
2 replies 1 retweet 1 like -
but this would make it a pretty effective back-tracking mechanism? throw a uv lamp at a group of people and see who's clothes light up
1 reply 0 retweets 0 likes
Replying to @__eater__ @cloudyip
Everyone's clothes will light up.
7:01 AM - 2 Sep 2019
0 replies
0 retweets
3 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.