The University of Colorado and downtown Boulder are very close so it is easy to walk around town. There are sidewalks along most streets and paths along the creeks that will take you around town. You will see many people walking, running, taking their dog for a walk and biking along the creek paths.
Differences in Spectrum Range. AM radio ranges from 535 to 1705 kilohertz, whereas FM radio ranges in a higher spectrum from 88 to 108 megahertz. For AM radio, stations are possible every 10 kHz and FM stations are possible every 200 kHz.
Megahertz means millions of cycles per second, so 91.5 megahertz means that the transmitter at the radio station is oscillating at a frequency of 91,500,000 cycles per second. Your FM (frequency modulated) radio can tune in to that specific frequency and give you clear reception of that station. All FM radio stations transmit in a band of frequencies between 88 megahertz and 108 megahertz. This band of the radio spectrum is used for no other purpose but FM radio broadcasts. In the same way, AM radio is confined to a band from 535 kilohertz to 1,700 kilohertz (kilo meaning thousands, so 535,000 to 1,700,000 cycles per second).