Hi Availle, As always, you read technical material very well!Availle wrote:Whew, just made it...
Demonstration that Planets Move In Ellipses
by Sir Isaac Newton
As you know, Craig will be doing the formal DPL for you, but I did listen to your recording. Newton's argument is way over my head, but , as I followed along, I heard a small number of differences from the text. Given how technical the reading is, I thought I would add my PL notes to those you will receive from Craig.
2:36.5 "at the end of the second moment..." (you said "movement")
19:09 in the written equation ABxPQxYZ cubed [over] XI x KL cubed , you pronounced the "K" as "key"
22:30, in the last paragraph "as also pq, xi becoming coincident" (you read "small x, small y")
I have one other question about the text. In the third paragraph from the end, which begins "And because the lines PY py are by the revolving body described in equal times..." the last sentence of that paragraph begins "Whence PQ [over] XI [times] YZ cubed is to....." The "cubed" is represented by a raised small "q." The other three equations in that sentence all read "quadrupled" represented by the abbreviation "quad." What I'm wondering is if the first "cubed" should have read "quadrupled?"