On Monday, March 5, 2018 at 6:09:27 PM UTC, Bill wrote:


Agenda = purpose, goals...


Look, the ability to condense long term imaging into time lapse where your normal judgments of motions at a human level kick in is all that is needed so that is very much a recent thing with the rise of the internet and the availability of imaging/video/animation.

When I first worked out the Earth had two separate rotations to the Sun there was no time lapse or imaging to support this conclusion but eventually it did emerge through the Hubble telescope and the motions of Uranus where you can see the planet spin in two distinct ways when the time lapse really speeds up -

https://www.youtube.com/watch?v=612gSZsplpE

I doubt very much that the usual visitors to this newsgroup would give two minutes of their time to observe where the rotations of the planet are condensed from 3 years into about 10 seconds thereby learning a lesson which can then be applied to the Earth as a matter of course.

Despite themselves, some observers here now understand how the illusory loop of Mars provides a different perspective than the actual loop of Venus as their normal judgment of motion scale up to the planets as they run their circuits with the Earth motion either having a huge influence in respect to the slower moving planets or very little with the faster moving Venus and Mercury -

https://apod.nasa.gov/apod/image/031..._tezel_big.jpg

VS

http://www.popastro.com/images/plane...ary%202012.jpg


As you can see, the direct/retrogrades motion of Mars is one thing but it takes a new approach to account for the back and forth motion of Venus against the background stars. In the absence of responsible astronomers in universities or space agencies what better place to plant the perspectives among those who treasure observational astronomy who can inform those who making a living from passing themselves off as astronomers.