James Roosevelt met his wife at a Roosevelt family gathering in the home of Theodore's mother, and James' son Franklin married Theodore's niece Eleanor. The Roosevelt Family is generally associated with the state of New York. Harvard University educations have been common among many members of the Roosevelt Family.
From the top: Air is 78 percent nitrogen, just under 21 percent oxygen, and the rest is water vapor, CO2 and small concentrations of noble gases such as neon and argon. There are several compelling reasons to use pure nitrogen in tires.
He showed me a thermos full of colorless, liquid nitrogen. It was about -321 degrees Fahrenheit. We canât see it with our eyes, but I found out about 78 percent of our air is made up of nitrogen in its gas form. You may have heard about states of matter, like liquids, solids and gases.