What makes stealth bomber invisible?

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Tags

1. #shape
2. #nicknamed
3. #edges
4. #spirit
5. #designed
6. #stealth
7. #shaped
8. #reducing
9. #means
10. #flying
11. #bomber
12. #there
13. #invisible
14. #dramatically
15. #possible
16. #aircraft
17. #unique
18. #reflect
19. #leading
20. #radar
21. #signature