Also now was able to appreciate all the technology that went into that machine. Plus all the interesting things you can do it. Basically can show you the sky at any given day on any given place on earth that you want back a few thousand years.
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That is pretty amazing! The clock of the sky is pretty cool. Going back in time with the patterns is cool. What's also interesting... is they can predict or project the future doing that same process in reverse. Of course, things could change and it might not be an accurate prediction... but assuming things function pretty much the same as they have you can see what things might look like in the future. Another cool thing is that it takes so long for light to get here... that we are already looking into the past even in the now! It's all pretty mind-blowing! hahaha
Yes, that machine is still one of the analogue ones. New planetariums usually have a digital projector, but that one still had an old mechanical one. So all the stars and movements are done by gears and so on so going backwards or forwards is no problem at all. It gets less accurate the further you get away from the point to which it was build, but according to the people I met there it stays amazingly accurate within about 5000 years in any direction.
If you think about it any photo is a window in time and space. You look at a certain time and a certain location when you look at it. (well unless you mince the pixels through some photo editing, then it becomes fantasy)
It's all pretty crazy when you stop and think about it all! Simply incredible. hahaha
