# Day 64/67 of GED in Five Months, lines and laws, and transporting us Ad Astra!

To the stars!    But, how do we get there?

Today’s reading discusses Newton’s proofs of Kepler’s earlier laws, based on both observation and mathematics.  After all, if we can see it, but don’t know how much food and fuel we need to get there, it might be a longer trip than we thought!

Newton’s Principia (Mathematical Principles of Natural Philosophy, 1687), the foundational work of modern science. Newton used classical geometry and the emerging techniques of differential and integral calculus to give mathematical derivations from general fundamental principles of essentially all the quantitative physical laws known at the time.One of the main achievements was the derivation of Kepler’s laws from an inverse square law for gravity …”

###### End of Week 17/18
 Day 64 lesson Grammar: Compound sentences Math: comparing slope of two or more lines Science: reading science history, with the help of a little math… Please see the Lesson plan for Day 64’s Exit Tickets

Action Items:

1.) And if two lines have both the same slope, and the same equation, then what are they?

2.) Please tell us where the information for today’s reading comes from, how you know that the sources are reliable, and who funded them,

3.)  Feel free to answer the exit ticket questions in the comments, or pose any other questions you may have about the lesson, if you wish.

Dear Readers, ideas on learning, especially multiple #LanguageLearning, on-going education and empathy-building, to #EndPoverty, #EndHomelessness,  #EndMoneyBail & achieve freedom for All HumanKind

Support our key #PublicDomainInfrastructure  &  for heavens sake: please #StopSmoking for CCOVID-19 (or even for good!)!:
1. #PublicLibraries,
2. #ProBono legal aid and Education,
3. #UniversalHealthCare, and
4. good #publictransport

Nih sakh sh’lekk, sleem wa

(RIP, Mira Furlan/Delenn…)