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Seeing Atoms & Molecules COSMOS 2008 Wilson Ho University of California, Irvine.

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Presentation on theme: "Seeing Atoms & Molecules COSMOS 2008 Wilson Ho University of California, Irvine."— Presentation transcript:

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2 Seeing Atoms & Molecules COSMOS 2008 Wilson Ho University of California, Irvine

3 50,000,000 x Magnification Stock Metals Silver Atoms

4 Silicon(111)

5 The Virtue of Being Single: A Molecular View

6 50,000,000x Magnification Galileo, 1992 Reines Hall 3,900,000 Miles UC Irvine

7 Galileo

8 Apollo 16 – North America

9 Los Angeles Basin

10 Newport Beach - Irvine

11 Home of the Anteaters

12 Reines Hall - UCI

13 Tunneling Phenomenon

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15 STM Tip

16 Tornado: Miami, Texas, May 29, 1994

17 Quantum Tunneling of Electrons

18 Tunneling Microscopy

19 Vacuum Tunneling

20 Topography

21 Silicon(111)

22 Principles of Modern Chemistry, 6th edition, Oxtoby, Gillis, and Campion (Thomson Brooks/Cole, 2007).

23 Houghton- Mufflin Science, California Edition (2007).

24 Single H Atom

25 H Atom on Cu(001)

26 Random Walk of Single H Atom

27 Single Atom Tracking

28 Single H Diffusion

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31 Self-Cleaning Lotus Plant

32 The Lotus Effect

33 Rough Surface Smooth Surface

34 Wilhelm Barthlott Paint & Roof Tiles

35 Lotusan Paint Regular Paint

36 STM Apparatus

37 Scanning Tunneling Microscope

38 STM in Vacuum

39 Manipulation Mechanism

40 Pd 20 Chain

41 Seeing LUMO of Mg-Porphine (Mukamel) (Ho) “Seeing is Believing” A Still Photo

42 Gold Chains Under Construction

43 Gold Chains: 1 to 20 Atoms

44 2-D Box: Standing Waves

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