The document explores the concept of invisibility, discussing classical invisibility and how metamaterials may provide a solution. It includes various images and references related to the science of invisibility and the properties of materials involved. The author presents a humorous tone while educating the reader about the complexities of achieving invisibility.

7. He’s the one on the rightPhoto courtesy Robboguy

8. Make Yourself Invisible!Stephen Granadehttp://granades.comstephen@granades.comtwitter.com/sargent

9. So what’s invisibility?Classical invisibilityMetamaterials (may) solve it!Photo courtesy buttersweet

10. Photos courtesy UnstablePixel and AF-Photography

11. Photos courtesy UnstablePixel and AF-Photography

12. GIANT PLUGPhoto courtesy One Tree Hill Studios

13. Photos courtesy UnstablePixel and AF-Photography

14. Photo courtesy miss_blackbutterfly

15. Photo courtesy CyboRoZ

16. Stephen’s making a LARP joke. Humor him please

17. So what’s invisibility?Classical invisibilityMetamaterials (may) solve it!Photo courtesy buttersweet

19. 200,000 km/s300,000 km/s

20. 11.331.0002272.417Photos courtesy tim.perdue, kevindooley, and jurvetson

22. n=1n=1.33

24. Photo courtesy Wysz

25. n=1n=1.33

26. glass core(higher n)cladding(lower n)

30. Photo courtesy NASA

32. So what’s invisibility?Classical invisibilityMetamaterials (may) solve it!Photo courtesy buttersweet

33. Magic!Photo courtesy /mrpunto

34. Science!

35. 11.331.0002272.417Photos courtesy tim.perdue, kevindooley, and jurvetson

37. F@#*ING METAMATERIALS,HOW DO THEY WORK?

38. One wavelengthPhoto courtesy kbrookes

40. Photo courtesy Jason Valentine/UC Berkeley

42. Photo courtesy Jason Valentine/UC Berkeley

44. ε = relative electrical permittivityμ = relative magnetic permeability

45. ε, μ > 0ε < 0, μ > 0?ε > 0, μ < 0ε, μ < 0Photos courtesy tim.perdue, GrungeTextures, and Steffe

46. DOUBLE NEGATIVEMETAMATERIALACROSS THE SKYPhoto courtesy jcbwalsh

47. Photo courtesy Nature

48. Photo courtesy dimas_

50. David SmithMetamaterialPhoto courtesy Duke University

51. Photos courtesy Duke University

52. Photo courtesy Univ. of Maryland

53. Photos courtesy UC Berkeley

54. Photos courtesy Karlsruhe Institute of Technology and Science

55. or bats

57. So what’s invisibility?Classical invisibilityMetamaterials (may) solve it!Photo courtesy buttersweet