This drawing is a modification of the one uploaded by FastFission with URL

http://commons.wikimedia.org/wiki/Image:Little_Boy_internal_diagram_(no_labels).svg

The modification is actually a scanned copy of the John Coster-Mullen drawing on page 112 of the 2003 printing of his book, "Atomic Bombs," used with permission. It is colored and shaded to match the scheme of the FastFission drawing. John Coster-Mullen's work is accepted and supported by other authors in this field including Richard Rhodes, Robert Norris, Carey Sublette, and Howard Morland.

Unlike all previous published drawings of this type, the Coster-Mullen drawing shows the hollow piece as the projectile, rather than the target. HowardMorland 15:35, 30 March 2007 (UTC)

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