Invisibile Rain Coat by Dr Susumu Tachi

Invisible rain coat by Dr Susumu Tachi, a Tokyo University professor.


https://en.wikipedia.org/wiki/File:An_invisibility_cloak_using_optical_camouflage_by_Susumu_Tachi.jpg

https://www.youtube.com/watch?v=S_lVNQOuNrs&ab_channel=DOOZYPIPE