1 Around 1.4 million years ago,early human rela⁃tives crafted mysterious stone spheroids(球体)in the Middle East in attempts to make perfect spheres,a new study found.The finding showed the intention of early humans t...1 Around 1.4 million years ago,early human rela⁃tives crafted mysterious stone spheroids(球体)in the Middle East in attempts to make perfect spheres,a new study found.The finding showed the intention of early humans to impose a symmetry(对称)on the stones,the researchers suggested.展开更多
文摘1 Around 1.4 million years ago,early human rela⁃tives crafted mysterious stone spheroids(球体)in the Middle East in attempts to make perfect spheres,a new study found.The finding showed the intention of early humans to impose a symmetry(对称)on the stones,the researchers suggested.
