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December 24th, 2014, 2:44 pm

The Nebra Sky Diskc. 1600 BC
 
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Traden4Alpha
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December 25th, 2014, 2:50 pm

What's interesting about this disk is that the overlap of stars into the dark portion of the moon imply that the artist was unobservant (possibly) or lived where they never saw the near-new moon in an non-hazy sky. Under good viewing conditions one can see the entire moon's disk as a bright crescent lit by the sun and a dim but recognizable disk lit by Earth-shine. Moreover, a careful observer of astronomical phenomena would see that stars disappear behind the moon and do not reemerge until after they've transited the unlit portion of the disk.
 
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December 25th, 2014, 7:53 pm

QuoteOriginally posted by: outrunMaybe it was a draft, t4a? More like a sketchbook, there are 4 moons, some good and some not but 3 too many.It was damaged when it was unearthed by amateurs (looters actually - who did some prison time in Germany for fencing this artifact and others that they found at the same site). They used a pick axe during the digging, apparently. A pity... Conservators restored the Nebra disk a few years later, but their effort may or may not have been true to the original artisan's intent. However, you might surmise that four moons in different shapes would be phases... The overlapped star might actually be an effort to depict Venus - double bright as it is. That is just my guess though - I have not read about that.
Last edited by trackstar on December 24th, 2014, 11:00 pm, edited 1 time in total.
 
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December 25th, 2014, 8:20 pm

There are several pages of detail here:Nebra Sky Disk - Landesmuseum fur VorgeschichteIn English and German, if you prefer, with good pictures.
Last edited by trackstar on December 24th, 2014, 11:00 pm, edited 1 time in total.
 
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December 26th, 2014, 2:28 am

No other astronomical object would appear in front of the rest of the lunar disk regardless of phase.
 
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December 26th, 2014, 2:50 am

QuoteOriginally posted by: Traden4AlphaNo other astronomical object would appear in front of the rest of the lunar disk regardless of phase.According to antiquities experts on the German archaeological web site mentioned previously:The stages in the life of the Sky DiscThe traces left by metalworking and wear, the materials used and the arrangement of the pictorial elements together reveal a clear story of the life of the disc. We can distinguish five stages in it.Stage 1 - First the bronze disc is decorated as the sky at night with 32 stars, the full moon and the crescent. Stage 2 - Later, the addition of the arcs at the edges hid two of the stars, while another star was replaced in a new position to keep it visible. The relocation of the single star can be seen clearly because that gold arc is now missing. X-ray images clearly show the two hidden stars beneath the other arc.Stage 3 - One piece of plate differs sharply from the other gold appliqués in its colour and decoration: the fringed and grooved arc at the bottom. It is squeezed in between the stars, whereas all the other heavenly bodies lie at a clear distance from the gold dots - this element does not belong to the original picture.There is a different proportion of silver in the gold plate used for the stars, the arcs on the side-edges, and the grooved arc, respectively. This shows that the gold objects of each stage of production were made from a different batch of gold each time. They may have been made by different people.Stage 4 - Later, the disc must have been put to a new use, because holes were bored right round its edge. It may have been fixed to a stand and could perhaps have been carried as a standard.Stage 5 - All the indications suggest that one of the horizon arcs had already been removed in ancient times, before the Sky Disc was deposited in the ground.
Last edited by trackstar on December 25th, 2014, 11:00 pm, edited 1 time in total.
 
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December 26th, 2014, 2:51 pm

Interesting progression. It looks like the mistake was made in Stage 1 and never corrected.That makes me think this was just a decorative object.
 
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January 1st, 2015, 3:19 pm

And this object? No cheating, ppauper!
 
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tagoma
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January 1st, 2015, 3:27 pm

Kinda simon?
 
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January 1st, 2015, 3:33 pm

I am going to take the rest of the day off from the Forum, but while I am away, all of you can work on it. (Cuch, if you already know, do not tell them!)
 
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Traden4Alpha
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January 1st, 2015, 10:42 pm

5-D tesseract?Explosion at a bubble fluid factory?MAG for a hyperdimensional city road?
 
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January 2nd, 2015, 1:41 am

You are close with the tesseract.It is a stereographic projection of a dodecaplex. I discovered it while wandering around this morning. The credit goes to artist Paul Nylander. I also found this book: Indra's Pearls: The Vision of Felix Klein
Last edited by trackstar on January 1st, 2015, 11:00 pm, edited 1 time in total.
 
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January 2nd, 2015, 9:15 am

QuoteNo other astronomical object would appear in front of the rest of the lunar disk regardless of phase. Unless, T4a, unless, the view of the artist is not based on planet Earth #Ancient_astronaut_hypothesis
Last edited by savr on January 1st, 2015, 11:00 pm, edited 1 time in total.
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