1 Problem: The tissue surrounding the IV insertion site is swollen, pale, and cool to the touch. 2  Possible cause: Unintentional administration of solution or medication into the surrounding tissue. 3  Assessment: Leaking from the IV site with slowing or occlusion of fluid flow. Possible cause: Inflammation of the vein with possible clot formation due to trauma, bacteria, or irritating solutions. 2  Assessment: The patient reports tenderness, burning, and irritation along the accessed vein. 3  The rate of infusion has slowed.
While the Spaniard first patented a steam-operated machine for use in mining, an Englishman is usually credited with inventing the first steam engine. In 1698, Thomas Savery, an engineer and inventor, patented a machine that could effectively draw water from flooded mines using steam pressure.
The steam engine was not so much invented as developed. To give credit to any one person would be to steal credit away from its many rightful owners. The steam engine was developed over a period of about a hundred years by three British inventors. The first crude steam powered machine was built by Thomas Savery, of England, in 1698. Savery built his machine to help pump water out of coal mines. This machine was so simple that it had no moving parts. It also used up lots and lots of coal just to pump a small quantity of water.