| Year | 2018 |
| Date | 11-May |
| Volume | 220 |
| Issue | 4,586 |
| Page | 706 |
| Category | Railway |
| Part | |
| Title | Balancing and Adhesion |
| Author | Duncan Webster |
| Notes | Takes a look at the mathematics behind wheel balancing, Introduction, rotating mass, reciprocating mass, sums, balancing the reciprocating mass, cross balance, effects of scale, put some numbers in, suppose we had no balance weights at all, balancing my little locomotive, conclusion, references |