| 1 | Magnetism is a natural phenomenon. | |
| 2 | The test uses magnetic force to control individual droplets containing added magnetic particles. | |
| 3 | Normally the galaxy' s magnetic fields protect us from that radiation. | |
| 4 | The fastest way to travel from Pudong into the city is on the Maglev (short for 'magnetic levitation' ) train line. | |
| 5 | Furthermore, as well as propelling a magnetic device through the body, an MRI machine can also locate it. |