Oxygen Atom A Glass of Water (~10-10 m) H2O Molecule (~10-9 m)

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Oxygen Atom A Glass of Water (~10-10 m) H2O Molecule (~10-9 m)

© Dennis Kunkel Microscopy, Inc. (www.denniskunkel.com)

10,000 atoms long © Dennis Kunkel Microscopy, Inc. (www.denniskunkel.com)

Oxygen Atom A Glass of Water (~10-10 m) H2O Molecule Oxygen Nucleus

Nucleus = Baseball

? Oxygen Atom A Glass of Water (~10-10 m) Neutron or Proton (~10-15 m) Oxygen Nucleus (~10-14 m) .00000000000001 m H2O Molecule (~10-9 m) .000000001 m ? Quark (<10-19 m) <.0000000000000000001 m

 The macroscopic world (What we’re familiar with) The microscopic world (What atoms – and things smaller – are made of)

Macroscopic Baseball

Microscopic Baseball

Microscopic Baseball

Life is only possible because of quantum mechanics! Molecules with Quantum Mechanics Molecules without Quantum Mechanics

Nucleus = Baseball