Seals were most often made of stone but also sometimes of bone, ivory, faience, glass, metal, wood, or even sun-dried or baked clay. A recessed inscription was carved onto the cylinder, which produced ...

Researchers investigating how the first writing arose identified the motifs on preliterate "cylinder seals" used in the trade of agricultural products and textiles.

The origin of writing is linked to designs engraved on cylinder seals 6,000 years ago, according to new research. A series of correlations between engraving on ancient Mesopotamian artifacts and ...

Hello Paul, what is a car cylinder head gasket, and why does it fail? Additionally, what are the common symptoms of a blown head gasket, and how can one prevent such a failure? Mukisa Hello ...