Mental Jetsam

By Peter Finch

First Principle Astronomy

I find astronomy mesmerizing,  we have been able to find out so much about our universe just by observing how it works. We cannot run a tape measure around the Earth, but we know it’s circumference, we know it’s distance from the sun, how fast it’s traveling… so much information, but have you every thought… “How do we know that?”.

For example, considering the following questions…

  1. How long does it take the Earth to make 1 complete rotation?
  2. How long does it take the Earth to rotate around the Sun?

If your answers to the above questions are (1) 24 Hours, (2) 365 Days, then you would be wrong and this site is for you.

The following pages document my exploration of the Universe, with the most basic of instruments, a home made theodolite, and a bit of imagination. I’m going to try a find answers to these and some even more difficult questions and  base everything on information that I have already gathered through Observation, Measurement and Reason. Ultimately, I would like to come up with a model of our observable Solar System based purely on calculations and measurements I have come up with myself.

By the way, I am not says that what you read in Textbooks and search for on google is wrong, I would just like to work it out for myself, like astronomers of old.

  1. What Do I Know
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