Wow, this is underrated. The start of the video cuts between a few other inventions this creator made using air. They discussed using air for digital logic gates generally.
If the active elements were convex instead of concave, I can imagine this being useful for people with visual impairments. How does this compare to existing technologies for braille displays?
Really neat stuff I hadn’t thought about before!
The technology hasn't changed at all since the 1992 film Sneakers with the blind character Whistler. https://youtu.be/GS3npSv8iuM?t=124
[1] https://news.ycombinator.com/item?id=47733345
https://www.engadget.com/this-oled-screen-can-fill-with-liqu...