| Term | Definition | Contributor | Modified |
|---|---|---|---|
| 1day | Ryan McGranaghan | 2023.04.16 | |
| 1hour | Ryan McGranaghan | 2023.04.16 | |
| 1month | Ryan McGranaghan | 2023.04.16 | |
| 1m radius Schaevitz centrifuge | A 1m radius [centrifuge_machine](https://n2t.net/99152/h1251) in which geotechnical models can be tested. | Maria Esteva | 2023.03.27 |
| 1week | Ryan McGranaghan | 2023.04.16 | |
| 1year | Ryan McGranaghan | 2023.04.16 | |
| 203.6mya | Ryan McGranaghan | 2023.04.16 | |
| 20.3 million km2 | Ryan McGranaghan | 2023.04.16 | |
| 20.43mya | Ryan McGranaghan | 2023.04.16 | |
| 2050mya | Ryan McGranaghan | 2023.04.16 | |
| 216.5mya | Ryan McGranaghan | 2023.04.16 | |
| 228.7mya | Ryan McGranaghan | 2023.04.16 | |
| 2300mya | Ryan McGranaghan | 2023.04.16 | |
| 23.03mya | Ryan McGranaghan | 2023.04.16 | |
| 237.0mya | Ryan McGranaghan | 2023.04.16 | |
| 245.9mya | Ryan McGranaghan | 2023.04.16 | |
| 249.5mya | Ryan McGranaghan | 2023.04.16 | |
| 2500mya | Ryan McGranaghan | 2023.04.16 | |
| 251.0mya | Ryan McGranaghan | 2023.04.16 | |
| 253.8mya | Ryan McGranaghan | 2023.04.16 |