| what is perpetual motion | 0.38 | 0.9 | 4532 | 24 | 95 |
| what is perpetual motion machine | 1.33 | 0.9 | 544 | 32 | 11 |
| what is perpetual motion machine 1 | 0.3 | 0.8 | 3163 | 34 | 55 |
| what is perpetual motion in physics | 0.74 | 0.2 | 9926 | 35 | 2 |
| is perpetual motion possible | 0.26 | 1 | 3522 | 28 | 13 |
| perpetual motion machines | 0.2 | 0.7 | 4557 | 25 | 38 |
| kinetic art perpetual motion machine | 1.57 | 0.8 | 2271 | 36 | 68 |
| history of perpetual motion machines | 0.64 | 0.7 | 9830 | 36 | 58 |
| why is perpetual motion impossible | 0.19 | 0.6 | 407 | 34 | 23 |
| perpetual motion toys | 0.88 | 0.2 | 5514 | 21 | 28 |
| perpetual motion generator | 1.41 | 0.7 | 7568 | 26 | 79 |
| perpetual motion device | 1.49 | 0.8 | 2731 | 23 | 48 |
| perpetual motion woodbury | 0.3 | 0.6 | 2945 | 25 | 99 |
| perpetual motion desk toys | 0.85 | 0.1 | 3035 | 26 | 69 |
| perpetual motion meaning | 0.95 | 0.7 | 5387 | 24 | 49 |
| perpetual motion machine examples | 1.89 | 0.3 | 5608 | 33 | 99 |
| perpetual motion clock | 0.65 | 0.6 | 6436 | 22 | 69 |
| perpetual motion simulator | 1.07 | 0.7 | 4421 | 26 | 90 |
| perpetual motion wheel | 1.04 | 1 | 1070 | 22 | 89 |
| perpetual motion guelph | 1.54 | 0.7 | 6140 | 23 | 58 |
| perpetual motion engine | 0.84 | 0.6 | 1811 | 23 | 64 |
| perpetual motion song | 0.5 | 0.6 | 8670 | 21 | 9 |
| perpetual motion suzuki | 0.28 | 0.3 | 8307 | 23 | 81 |
| perpetual motion globe | 0.56 | 0.5 | 3517 | 22 | 59 |
| perpetual motion | 1.26 | 0.8 | 953 | 16 | 80 |
