 |
| |||
| symmetry | |||
| mark/space ratio; duty cycle | |||
| simetria: 35 phrases in 13 subjects |
| Agriculture | 1 |
| Chemistry | 1 |
| Communications | 1 |
| Earth sciences | 2 |
| Electronics | 9 |
| General | 1 |
| Life sciences | 1 |
| Mathematics | 11 |
| Physical sciences | 1 |
| Statistics | 2 |
| Technology | 1 |
| Thermal Energy | 1 |
| Transport | 3 |