Hindu–Arabic numerals and submarine: what they have in common

1. Step 1. Hindu–Arabic numerals — evolved into — Binary number system. A positional system with base 2.
2. Step 2. Binary number system — is used in — Digital signal processor. It processes a digital signal.
3. Step 3. Digital signal processor — is part of — Ultrasound scanner. Forming the image.
4. Step 4. Ultrasound scanner — works like — Sonar. A medical sonar: the same echo principle.
5. Step 5. Sonar — is part of — Submarine. Underwater acoustics.

Open Evothings