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.
STURGIS, S.D. â It will take some time and tallying before official attendance numbers for the 75th Sturgis Motorcycle Rally are in, but bikers and officials who've packed the small Black Hills town in western South Dakota say it's one of the largest rallies they've ever seen.