https://www.reddit.com/r/mildlyinteresting/comments/6m7apy/the_mirror_in_my_hotel_in_japan_has_a_heated_part/
origin - http://www.pipiscrew.com/2017/07/the-mirror-in-my-hotel-in-japan-has-a-heated-part-that-wont-steam-up-after-a-shower/ the-mirror-in-my-hotel-in-japan-has-a-heated-part-that-wont-steam-up-after-a-shower