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| Foundations of Scientific Knowledge - Fundamental Forces |
 | | The strong and weak forces work at only very small distances of less than a trillionth of a centimeter, and typically play their role inside the nucleus of an atom. |
 | | Gravity is an attractional force between all matter with mass in the universe. |
 | | By comparing the two force values that we calculated from the two protons, the electromagnetic repulsion is 1,235,000,000,000,000,000,000,000,000,000,000,000 (1.235e36) times greater than the gravitational attraction. |
| mike.gamerack.com /science/forces1.php (673 words) |
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