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Atoms Impact on the world. How do you know atoms exist? Resolution: 0.1 nm lateral, 0.01 nm depth Scanning Tunnelling microscope Iron atoms on copper.

Published byPhebe Doyle Modified over 9 years ago

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Presentation on theme: "Atoms Impact on the world. How do you know atoms exist? Resolution: 0.1 nm lateral, 0.01 nm depth Scanning Tunnelling microscope Iron atoms on copper."— Presentation transcript:

1 Atoms Impact on the world

2 How do you know atoms exist? Resolution: 0.1 nm lateral, 0.01 nm depth Scanning Tunnelling microscope Iron atoms on copper surface

3 How do you know atoms exist?

4 Famous examples of reactions at atomic level Atomic bomb North Korea tested a bomb on 12 Feb 2013; devastation similar to nuclear bomb in Hiroshima in WWII

5 Famous examples of reactions at atomic level Fukushima Daiichi nuclear disaster 11 Mar 2011 Nuclear meltdown at power plant due to earthquake and tsunami http://www.youtube.com/watch?v=D91T-B-PVE0

6 Famous examples of reactions at atomic level Nuclear fission

7 Famous examples of reactions at atomic level Nuclear fusion

8

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