Meanwhile, back in 1809 astronomy…

While researching my new play about Maria Mitchell, stumbled upon this little treasure.

https://archive.org/stream/astronomyexplain00fergrich#page/n7/mode/2up

fergusons-astronomy-explained-title-page

And this was on p. 37

1809-astro-experiment

Sound familiar? It should.

How to draw an ellipse and calculate its eccentricity.

I. Love. Astronomy!

 

 

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s