| 1 | The rotor is formed from two linked polystyrene beads each 0.3 micrometres across. | |
| 2 | That's why polystyrene is ideal for use in bicycle helmets and other protective gear. | |
| 3 | Ingenious: Robert Harrison with his creation, a camera enclosed in a polystyrene box. | |
| 4 | Made of wood or polystyrene, nesting boards have holes drilled in them for bees to use to build their leafy nests. | |
| 5 | He and his team grew tiny polystyrene spheres until they were some 200 nanometres across, before hardening them with a blast of heat. |
Copyright © Purple Culture Co., Ltd. 2001 - 2026. All right reserved.
