Hacker News
- A blank wall can show how many people are in a room and what they’re doing https://www.scientificamerican.com/article/a-blank-wall-can-show-how-many-people-are-in-a-room-and-what-theyre-doing/ 14 comments
Linked pages
- 09.14.2005 - Researchers recover typed text using audio recording of keystrokes https://www.berkeley.edu/news/media/releases/2005/09/14_key.shtml 92 comments
- Sorry, UFO Hunters--You Might Just Be Looking at a Spy Balloon - Scientific American https://www.scientificamerican.com/podcast/episode/sorry-ufo-hunters-you-might-just-be-looking-at-a-spy-balloon/ 9 comments
- What You Can Learn by Staring at a Blank Wall http://wallcamera.csail.mit.edu 2 comments
- Footstep Sensors Identify People by Gait - Scientific American https://www.scientificamerican.com/article/footstep-sensors-identify-people-by-gait/ 0 comments
- A Shiny Snack Bag's Reflections Can Reconstruct the Room around It - Scientific American https://www.scientificamerican.com/article/a-shiny-snack-bags-reflections-can-reconstruct-the-room-around-it/ 0 comments
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