How exit signs are made to LOOK transparent
Double sided exit signs are not transparent, although they might look like so.
There's a thin sheet of mirror sandwiched between the transparent acrylic sheets so that both sides reflect the surroundings.
#mirror #physics #reflection #science #shorts #youtubechamps
![[AU:REBORN] Countering Gojo's Domain Expansion with GON](https://images.mixrolikus.cc/video/Zy_whWAnFMk)
