The average density of Earth is 5,515 kg/m3. Because the average density of surface material is only around 3,000 kg/m3, we must conclude that denser materials exist within Earth's core.
Republic of Texas Biker Rally. Motorcycles parked under the Texas Capitol building in 2006. The Republic of Texas Biker Rally (R. O. T Biker Rally) is the largest motorcycle rally in Texas and the largest turnstile (ticketed admission) motorcycle rally in the United States. Similar events in Sturgis, South Dakota, and Daytona Beach, Florida, draw more attendees, but they are not ticketed events.
That said, trikes have started to invade more traditional two-wheeled events, purring down highways from Laconia, N.H. â home to the longest-running bike rally in the country â to Ruidoso, N.M., site of this weekâs Golden Aspen Motorcycle Rally, where organizers expect about a third of the bikes to be three-wheelers.