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.
Bike Week 2017 runs March 10-19. The largest motorcycle rally in Florida attracts hundreds of thousands of bikers every March to Central Florida. 2015 Bike Week is slated for March 6-15. For more bike event coverage, visit our Bike Week channel. Below are the 2015 events. Feb. 28: Bike Week Kick-Off.