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To help compare different orders of magnitude we list here energies between 10-22 Joules and 10-21 Joules (0.62 and 6.2 meV). Weaker energies 1.602 × 10-22 J -- 1 meV Stronger energies External link Conversion Calculator for Units of ENERGY (http://www.ex.ac.uk/cimt/dictunit/ccenrgy.htm)