Radar-absorbing material and tank: what they have in common

1. Step 1. Radar-absorbing material — is used in — Stealth technology. Coatings.
2. Step 2. Stealth technology — uses — Reflection of light. Facets reflect waves off to the side.
3. Step 3. Reflection of light — is used in — Periscope. Reflection.
4. Step 4. Periscope — is part of — Tank. Observation devices.

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