Mass

• Eric Bourque

History

• Johannes Kepler• Sir Isaac Newton

History Two

• Current concepts

Apothecaries System

• History• Units• Milligram• Grain• Scruple• Dram• Ounce• pound

Apothecary System Two

• People• Industry

Avoirdupois System

• Milligram• Dram• Grain• Ounce• Pound• Hundredweight• Long hundredweight• Ton• Long ton

Avoirdupois System Two

• History • People• Industry

Troy System

• History• Industry

Troy system• Units• Milligram• Grain• Pennyweight• Ounce• Pound• Mite• Droit• Perit• Blank

Metric system

• History• Units• Industry/Uses

The American System

• History• Units

Atomic Mass

• History• Units• Industry

Other

• Carat• Gamma• electronvolt

Tools for Measurement

• Scale • Mass spectrometer

There’s a Difference

• Weight equals mass times gravity. Weight changes in space mass doesn’t.

Bibliography• http://teachertech.rice.edu/Participants/louviere/Newton/law2.html• http://en.wikipedia.org/wiki/Mass• http://en.wikipedia.org/wiki/Photon• http://www.mathpages.com/home/kmath582/kmath582.htm• http://visual.merriam-webster.com/science/measuring-devices.php• http://en.wikipedia.org/wiki/Mass_spectrometry• http://www.unitconversion.org/weight/kilograms-to-slugs-conversion.html• http://en.wikipedia.org/wiki/Apothecaries'_system• Http://www.dictionary.com• http://en.wikipedia.org/wiki/Avoirdupois_system..• http://en.wikipedia.org/wiki/Troy_system