We can put all that on-line, for others to take the InfoQuest challenge. We also have some fitness self assessments. Exercise is the best countermeasure for the deconditioning of space adaptation, as it is to the changes in physiology that we all experience as we age. Atmospheric pressure is 25 psia, as compared to the surface which is 14.7 psia I was just writing what Dennis dictated. PSIA is pounds per square inch absolute.
Absolute pressure is the total pressure as measured againgst a vacuum.
I started at age 10 in 1970. My main course of instruction was the Navy Dive School in 1986. I was sent there in my Marine Corps training. He could cover up the earth in the palm of his hand. So, all the parent-child conversations, like the ones Rod was telling us about, that have ever occurred took place on that fragile ball spinning in space, that your Dad could cover with the palm of his hand.