Activity for StainlessSteelRatâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Question | — |
Sniper team from different G-Worlds The metric system (SI units) is a base-10 measurement system based on the meter, kilogram and second. But it is tied to earth. A second, which historically was defined as 1/86,400 of a day, now defined as a fixed numerical value of the caesium frequency. The meter is defined as the length of the p... (more) |
— | about 5 years ago |