Scriptunas Images' photostream  

Space Shuttle Discovery rolls out to launch pad 39A at Nasa's Kennedy Space Center in Florida on September 20, 2010 in preparation for her final mission, STS-133.

Have you ever wondered how the tires are removed from a near century old steam locomotive? On Monday, January 9th several of the Cass shop crew spent the day removing eight tires from Shay #11's wheels. In order to remove the steel tires they must first be heated, which allows the tire to expand just enough for it to be beat off the wheel with a sledge hammer.

Have you ever wondered how the tires are removed from a near century old steam locomotive? On Monday, January 9th several of the Cass shop crew spent the day removing eight tires from Shay #11's wheels. In order to remove the steel tires they must first be heated, which allows the tire to expand just enough for it to be beat off the wheel with a sledge hammer.

Have you ever wondered how the tires are removed from a near century old steam locomotive? On Monday, January 9th several of the Cass shop crew spent the day removing eight tires from Shay #11's wheels. In order to remove the steel tires they must first be heated, which allows the tire to expand just enough for it to be beat off the wheel with a sledge hammer.

Have you ever wondered how the tires are removed from a near century old steam locomotive? On Monday, January 9th several of the Cass shop crew spent the day removing eight tires from Shay #11's wheels. In order to remove the steel tires they must first be heated, which allows the tire to expand just enough for it to be beat off the wheel with a sledge hammer.