7,000 year old stone rollers - photo

Vintage antique ancient stone rollers. From the National Museum of Archaeology in Malta. Caption reads:

Quote:

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Stone rollers probably possibly used in the transportation of megaliths for temple building.

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Fullsize image: https://diqn32j8nouaz.cloudfront.net...s_fullsize.jpg

https://diqn32j8nouaz.cloudfront.net...l_bearings.jpg


Previously:

https://www.homemadetools.net/forum/...521#post113857
https://www.homemadetools.net/forum/...105#post112500
https://www.homemadetools.net/forum/...188#post103533

My question is: how do they know those were used as rollers?

The ancient Egyptians used bowling ball sized spheres of very hard diorite to chip away granite. (An abandoned, partially liberated obelisk shows the grooves left by such stones. The spherical stones that matched the grooves were found lying around the site.

Since they were found in Malta, one of the features there are grooved tracks, dating from prehistoric times, and the inference is clear that the spheres ran in them.