The specimen marks a technological turn to manipulating objects with wide, flat stone surfaces ... human groups were using grinding stones to prepare plants and other foods, Shimelmitz says.

If you purchase an independently reviewed product or service through a link on our website, Rolling Stone ... coffee grinder”) are made up of two different burrs, that either have flat or ...

Case in point –stone pestle and mortar (rollu in Telugu) sil batta (flat grinder made of stone), chakki or mini jars for pickles and ghee for the dining table. What caught my attention was a ...