Additional online reading Welcome to BFSU: › Forums › Volume One › Learning Progression “D”: Earth and Space Science › Lesson D-1. Gravity I: The Earth’s Gravity; Horizontal and Vertical › Additional online reading Tagged: Enhancement This topic has 0 replies, 1 voice, and was last updated 10 years, 1 month ago by Bernard Nebel. Viewing 0 reply threads Author Posts November 8, 2014 at 12:24 pm #398 Bernard NebelKeymaster James Baldwin’s story on Sir Isaac Newton and the Apple from Thirty More Famous Stories Retold http://www.mainlesson.com/display.php?author=baldwin&book=thirty&story=newton Author Posts Viewing 0 reply threads You must be logged in to reply to this topic.