Material
In 1793, France sent botanist and aristocrat, Joseph Dombi, with a meter long rod and a one kilogram copper cylinder, to demonstrate the system for Jefferson in the US.
1793 年時，法國派遣了貴族植物學家 Joseph Dombi，帶著一條一公尺長的長條與一顆一公斤重的銅製圓柱體來向身處美國的傑佛遜展示公制系統。
Date
Mar 26, 2022
Recording
