| 1 | Inertia is beat only by movement. | |
| 2 | Galileo and Descartes replaced that with the idea of inertia. | |
| 3 | It also often includes global positioning systems (GPS) and inertial guidance systems (IGS) for tracking and positioning information. | |
| 4 | Once you get going, momentum builds up and inertia is no longer a factor. | |
| 5 | That very scenario emerges in the second study, which focuses on the inertial effect of greenhouse gases. |