For reference, Poul Anderson's 'Uncleftish Beholding' -- an essay on atomic theory written in modernized anglo-saxon.
https://en.wikipedia.org/wiki/Uncleftish_Beholding
Up Goer Five; rocket science explained using only the one thousand most common english words.
https://www.explainxkcd.com/wiki/index.php/1133:_Up_Goer_Fiv...