Java and submarine: what they have in common

1. Step 1. Java — is used in — Android. Apps in Java/Kotlin.
2. Step 2. Android — is used in — Smartphone. The most widespread mobile OS.
3. Step 3. Smartphone — has part — Gyroscope. A MEMS gyroscope detects the rotation of the phone.
4. Step 4. Gyroscope — is part of — Torpedo. Obry’s gyroscope keeps the course.
5. Step 5. Torpedo — is part of — Submarine. Torpedo armament.

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