Self-checkout and telescope: what they have in common

1. Step 1. Self-checkout — has part — Touch layer (capacitive). A touchscreen.
2. Step 2. Touch layer (capacitive) — is part of — Display. Under the glass is a touch layer that registers touches.
3. Step 3. Display — is part of — VR headset. A VR headset has two displays, one per eye.
4. Step 4. VR headset — has part — Lens. Lenses.
5. Step 5. Lens — is part of — Telescope. An objective and an eyepiece.

Open Evothings