Скачать или смотреть They Built KILNS That Melted BONE: The Stone Age Tech We Still Can’t Explain

Ancient people weren’t supposed to know this. And yet thousands of years before pottery, before bronze, before written language, they engineered thermal kilns so powerful they could melt bone and turn it into glue stronger than wood, sinew, or hide. This video uncovers the forgotten technology behind Stone Age combustion chambers, airflow systems, resin additives, and composite weapons—revealing how early humans mastered heat with a precision modern experiments still struggle to reproduce.

How did they control oxygen without chimneys?
How did they generate temperatures high enough to liquefy collagen?
And why do some kilns contain blueprints carved into stone?

Step inside the world of prehistoric material science and discover the secrets of bone glue, resin engineering, thermal shock, and the firecraft that helped early humans build tools capable of changing history.
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