Sound Effects
Rolling friction generates sound (vibrational) energy, as mechanical energy is converted to this form of energy due to the friction. One of the most common examples of rolling friction is the movement of motor vehicle tires on a roadway, a process which generates sound as a by-product. The sound generated by automobile and truck tires as they roll (especially noticeable at highway speeds) is mostly due to the percussion of the tire treads, and compression (and subsequent decompression) of air temporarily captured within the treads.
Read more about this topic: Rolling Resistance
Famous quotes containing the words sound and/or effects:
“Everywhere “good men” sound a retreat, and the word has gone forth to fall back on innocence. Fall forward rather on to whatever there is there.”
—Henry David Thoreau (1817–1862)
“One of the effects of a safe and civilised life is an immense oversensitiveness which makes all the primary emotions somewhat disgusting. Generosity is as painful as meanness, gratitude as hateful as ingratitude.”
—George Orwell (1903–1950)