Transcriber’s Notes

--Retained publication information from the printed edition: this eBook

is public-domain in the country of publication.

--Some captions describing separately placed images were split, removing

redundant relative clauses like “Above” or “To the right is...”

--In the text version only, underlined or italicized text is delimited

by _underscores_.

--Where possible, UTF superscript and subscript numbers are used; some

e-reader fonts may not support these characters.

--In the text versions only, other superscript text is preceded by caret

and delimited by ^{brackets}.

--In the text versions only, other subscripted text is preceded by

underscore and delimited by _{brackets}.

--The Table of Contents lists pages and illustrations in all three

volumes:

--Volume 1

--Volume 2

--Volume 3

--These links can be made to function on local copies of the files.

Worlds Within Worlds: The Story of Nuclear Energy, Volume 3 (of 3) Nuclear Fission; Nuclear Fusion; Beyond Fusion · 第 30 / 30 题