The Magdeburg hemispheres were a pair of large copper hemispheres precisely cast so that their rims fit tightly together. Magdeburg was a small place in Germany.
Identifier (URI) | Rank |
---|---|
dbkwik:resource/oQZFrxEVpflLxc-eHa89xA== | 5.88129e-14 |
dbr:Magdeburg_hemispheres | 5.88129e-14 |