来自MSN2 个月
12,000-year-old stones may be oldest example of wheel-like tech
Some 12,000-year-old stones have been discovered, which may be the oldest example of wheel-like tools. The spindle whorls would feature in a wheel and axle arrangement to allow the spinning of ...
来自MSN2 个月
These 12,000-year-old stones may finally prove when the wheel was invented, scientists say
“These perforated stones are actually the first wheels in ... forming the classic wheel-and-axle format that helps the spindle spin faster and longer, Phys.org reported. In turn, this expedites ...