forbidden archeology

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forbidden archeology

Post by dill786 »

the LIDAR technology is a game-changer, full 3d images of what's underneath the earth without any digging looks right through the trees, and penetrates the ground with 2 or 3d images....

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Post by bentech »

its never been explained how it sees through sand as its lightproof id think...
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Post by bentech »

still dont get it...


https://earthobservatory.nasa.gov/featu ... rchaeology" onclick="window.open(this.href);return false;
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Post by bentech »

https://en.wikipedia.org/wiki/Luminesce ... d_accuracy" onclick="window.open(this.href);return false;
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Post by Intrinsic »

bentech wrote:its never been explained how it sees through sand as its lightproof id think...
Interesting question. I'm going to assume cuz it ain't light proof being porous, light scatters and refracts amongst the sand grains, I guess some of the light gets back, the laser must be higher frequency then visible light? Or Would it be lower?

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Post by dill786 »

check out pics, lidar amazon
really impressive
https://www.google.com/search?q=archaeo ... 47&bih=541" onclick="window.open(this.href);return false;

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Post by bentech »

you can certainly build a light proof room out of adobe. and thats just a percise mixture of sand silt and water...
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Post by Intrinsic »

Maybe visible light proof, microwave can go through Adobe, it's light, high frequency Em light. And I think of abobe wouldn't be classified as porous more on the Bedrock characteristic.

Wiki says lidar works for canopies because some of the em Spectrum gets down and back through the Leafs.

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Post by ben ttech »

yes, airspace to go to the bottom and return
from what i read, it looks like they shoot beams at angles in addition to straight up and down
looking for those gaps

but a heap of noise to factor out it must be as foliage returns the lions share of them
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Post by bentech »

extraordinary evaluation of an old find...

Scientists recently examined a silver ring holding a gem engraved with the word “Allah” that was discovered in a Viking-era woman’s grave by Swedish archaeologists in the late nineteenth century. The team used a scanning electron microscope to determine that the gem, thought to be an amethyst, is actually colored glass, which would have been an exotic material in the Viking world. They also discovered that the ring is still in mint condition, with no sign of wear. “That means it was not an heirloom passed from person to person that randomly ended up in Scandinavia,” says Stockholm University biophysicist Sebastian Wärmländer, who led the team. “The ring was brought here soon after it was made, and corroborates ancient tales about direct contact between Viking Age Scandinavia and the Islamic world.”


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