a thoughtful web.
Good ideas and conversation. No ads, no tracking.   Login or Take a Tour!
comment by thundara
thundara  ·  4650 days ago  ·  link  ·    ·  parent  ·  post: How to Build a Speech-Jamming Gun
Seems to be projection, neat though. The Exploratorium in San Francisco has two benches set up that are shaped in a way to project sound, allowing you to have conversations at opposite sides of the building.