A ring around a single living cell: 79% gold and 21% silver by mass. Gold is almost twice as dense as silver, so by volume the silver claims more of the ring than its 21% suggests. The ring is drawn by volume: each of the 72 segments is one 72nd of the metal. Drag to turn it; slide to change the mix.
| gold | silver | |
|---|---|---|
| density (g/cm³) [LIT] | 19.32 | 10.49 |
| mass fraction | ||
| volume fraction | ||
| segments of 72 | ||
| alloy density [AMBER] | ||
LIT densities of pure gold and silver at room temperature (CRC Handbook). Electrum is a natural gold–silver alloy. AMBER the alloy density assumes ideal mixing (volumes add); real Au–Ag alloys deviate by well under 1%. MODEL 79/21 is Dave's ring. ← SaPpH{{i}}on