Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Representative 0.25-, 0.5-, 1-, 3-, 5-, and 7-mm-thick chicken breast sections placed above text. As the thickness increases, light scattering makes it impossible to read the text below. (b) A 3.5-mm-diam beam of 532-nm light scattering through a representative 7-mm section of chicken breast tissue. For reference, the black plastic spacer is 30×24 mm.
