1. Frictional heat is generated between the wear-resistant tool and the work pieces.2. During braking, it becomes a generator, recapturing energy normally lost as frictional heat . 3. This is interpreted to represent the frictional heat produced at the time of the earthquake. 4. Once a fault begins to slip, the initial frictional heat produced by the fault is extremely intense. 5. As temperatures fall toward 0 degrees, frictional heat is conducted farther below the snow's surface, limiting melting and reducing slipperiness. 6. As temperatures fall toward zero, the frictional heat is conducted farther below the snow's surface, limiting melting and reducing slipperiness. 7. Thus, a force is required to move the back of the contact, and frictional heat is released at the front. 8. As temperatures fall toward 0 degrees, the frictional heat is conducted farther below the snow's surface, limiting melting and reducing slipperiness. 9. Tidal forces from Jupiter twist and contort little Io, creating frictional heat that erupts in at least 32 volcanoes, he said. 10. The temperature measurements were also designed to estimate the frictional heat on the fault by measuring the thermal anomaly at the fault zone.