TECO Energy's main subsidiary, Tampa Electric, is planning to expand the Polk Power Station to serve future electricity needs. Plans call for converting the four natural gas-fired combustion turbines into a more efficient combined-cycle unit. If we get all the necessary approvals, the $700 million project is scheduled to be running by early 2017.
The circumference of the Earth is 24,902 miles (40,075.16 km). Over the poles it is more precisely 40,008 km or 24,860 statute miles. The actual unit of measure used by Eratosthenes was the stadion.
by Jerry Coffey on March 8, 2009. The size of Earth, like the size of all of the celestial bodies, is measured in a number of parameters including mass, volume, density, surface area, and equatorial/polar/mean diameter. While we live on this planet, very few people can quote you the figures for these parameters. Below is a table with many of the pieces of the data used to measure the size of the Earth.