Cover of the book Ancient DNA by Herrmann and Hummel, Springer Publications

Type of radiation Frequency range (Hz) Wavelength range Type of transition 

Near-infrared 10 Mxl0 2.5 pm-750 nm Outer electron molecular 

Copyright 1997 by Science Hypermedia, Inc., all rights reserved, http //elchem.kaist.ac.kr/vt/scimedia/copyrigh.htm 

Buildings Humans Honey Bee Pinpoint Protozoans Molecules Atoms Atomic Nuclei 

To identify the composition of archaeological materials and measure very small quantities of elements, isotopes, and molecules, we need to have appropriate units of measurement and some concept of the amounts we are describing. 

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Fig. 1.4 Cover of the book Ancient DNA by Herrmann and Hummel, Springer Publications...

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