TIL That Elevators In America. Ding Once To Go Up And Two Times Going Down. It's Due To Help Thoes With Disabilities. ADA
https://www.youtube.com/watch?v=48hW-K7fQTM
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1ii4x6w/til_that_elevators_in_america_ding_once_to_go_up/