1. Powers of Ten
--Air
Air???

2. What is in this bottle? Is it empty? (i.e. – nothing?) OR Is it full?
(i.e. – of air?)

3. Cloud
Large Scale

4. From large to macro
telescope
103m
eyes

5. From large to macro
eyes
100m
optical magnifier

6. Water droplets
5mm
Macro Scale

7. cloud droplets
Macro Scale

8. From macro to micro
optical magnifier
optical microscope

9. Single cloud droplet
Micro Scale

10. From micro to atomic
optical microscope
Atomic force microscope

11. molecules
20nm

12. Molecules atom and bonds
Oxygen O2
Water H2O
Carbon dioxide CO2
Nitrogen N2

13. Air molecules movement

14. What is in our atmosphere’s air?
Lavoisier，Antoine-Laurent （1743～1794）