Refrigeration system history
Posted February 14th, 2010In 1758, Benjamin Franklin and John Hadley, professor of chemistry at Cambridge University, conducted an experiment to explore the principle of evaporation as a means to rapidly cool an object. Franklin and Hadley confirmed that evaporation of highly volatile liquids such as alcohol and ether, could be used to drive down the temperature of an [...]
Tax Refund Estimator - Estimate 2009, 2010 Tax Refund Free
Posted February 14th, 2010Want to know of a quick way to get a preview of your tax refund for 2009?
Want to know your tax refund without actually going through the whole process of filing your tax return?
Is there some tool that will do this for you? for Free?
Yes there is!
Its a little tool called the tax refund calculator.
What [...]