Career Day 
South Junior High School 
Careers in Science

Richard P. Feynman December 29, 1959.

"But I am not afraid to consider the final question as to whether, ultimately---in the great future---we can arrange the atoms the way we want; the very atoms, all the way down! What would happen if we could arrange the atoms one by one the way we want them."

1.  Can we move atoms?

• Carbon Monoxide Man (on Platinum)
• IBM - Xenon (on Nickel)
• Quantum Coral (48 Iron Atoms in Ring)
• molecular abacus (C60)  |  Buckyball - Chime Model

2.  How do we know the structure of matter?

• Diffraction/Interference  - water wave | water interference
• Light Diffraction - Laser Demo
• Crystal Structures - Sodium Chloride Crystal | Sodium Chloride Chime Model
• Diffraction Pattern -Laser Demo

3.  Changing atoms positions

• by human hand - STM  | 

• Memory Metals

• Proteins: 

  • a normal protein: hexokinase

  • unbinding arachidonic acid from COX - 250 ps

  • 30 mer poly-Ala

  • unfolding Zn Finger

• DNA:

  • double stranded DNA helix

  • DNA origami

4.  Nanotechnology

• normal motor  |  normal gears

• cellular motor |  cellular gears - flagella

• nanogears: MD simulation  Examples: 

  • Rotation of on-line multiple rows-of-teeth gears

  • This animation shows that the gear can be powered to drive the shaft, converting rotational motion into translational motion

• Virus vs Nanobot

5.  More links

• nanotechnology images

• Nanoscience and Technology at Sandia National Labs

• Nanotechnolgy Streaming Videos

• Nanomedicine Art Gallery and more