How is it possible to communicate in Morse Code by knocking or tapping, when each tap sounds identical? - Quora
![Wikipedia on Twitter: "Tap code is a way to encode text messages on a letter-by-letter basis in a simple way. https://t.co/sNrGt5dIwb https://t.co/gvdXl3JjkZ" / Twitter Wikipedia on Twitter: "Tap code is a way to encode text messages on a letter-by-letter basis in a simple way. https://t.co/sNrGt5dIwb https://t.co/gvdXl3JjkZ" / Twitter](https://pbs.twimg.com/media/CbjkAb8VAAEIHt9.png)
Wikipedia on Twitter: "Tap code is a way to encode text messages on a letter-by-letter basis in a simple way. https://t.co/sNrGt5dIwb https://t.co/gvdXl3JjkZ" / Twitter
![Figure 2 from Exploring Russian Tap-Code Text Entry Adaptions for Users with Reduced Target Hitting Accuracy | Semantic Scholar Figure 2 from Exploring Russian Tap-Code Text Entry Adaptions for Users with Reduced Target Hitting Accuracy | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/6baf9f0e9c58b126202cf9aea3a8a6336135b862/2-Figure2-1.png)