1. Notre Dame extended Research Community 1 NANOweek: Scale and Orders of Magnitude Dr. Patrick Mooney Dr. Karen DelleDonne Natalie Wasio, graduate student

2. 2 What do we mean by Scale? A Few Small Mammals Squirrel 0.5kg Cat 7kg 8kg Ferret 2kg Raccoon 5kg 4kg 0kg 6kg 2kg

3. 3 What do we mean by Scale? A Few Whales Killer 6,000kg Beluga 1,000kg 10,000kg Minke 10,000kg Pygmy Right 3,000kg 5,000kg 0kg 7,500kg 2,500kg Squirrel, Ferret, Raccoon, Cat (<10kg)

4. 4 How does this relate to Nano? Different Lengths Giraffe 5m 8m Tree 8m Human 2m 4m 0m 6m 2m Transistors, Molecules, Atoms, etc.

5. 5 Orders of Magnitude  Powers of Ten  Billionths= 0.000 000 001= 10 -9 Nano  Millionths= 0.000 001= 10 -6 Micro  Thousandths= 0.001 = 10 -3 Milli  Hundredths= 0.01= 10 -2  Tenths= 0.1= 10 -1  Ones= 1= 10 0  Tens= 10= 10 1  Hundreds= 100= 10 2  Thousands= 1,000= 10 3 Kilo  Millions= 1,000,000= 10 6 Mega  Billions= 1,000,000,000 = 10 9 Giga

6. 6 Exponent - 10 3  Billionths= Nano= 10 -9  Millionths= Micro= 10 -6  Thousandths= Milli = 10 -3  Ones= Base Unit= 10 0  Thousands= Kilo= 10 3  Millions= Mega= 10 6  Billions= Giga = 10 9

7. 7 Prefixes with “Meter” – Steps of 1,000 Meter Kilometer Megameter Millimeter Micrometer Nanometer 10 0 10 3 10 6 10 -3 10 -6 10 -9

8. 8 Scale Exercise

9. 9 Fold/Cut Paper  How many times can you fold a piece of paper in half?  How many times can you cut a piece of paper in half?  What do these exercises illustrate?

10. 10 Scale Bar

11. 11 “Well Spaced” Objects for Game Atom 10 -27 Cell 10 -15 Bee 10 -5 Elephant 10 3 Skyscraper 10 8 Mountain 10 15 Moon 10 22 Sun 10 30