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I can answer most questions involving general science and engineering, except those involving electronics and computers. My strong points are all the Earth Sciences, especially Meteorology and Astronomy, and any related subjects to Astronomy. My weak point is Electronics Technology. No astrology questions please, or questions about alleged UFO identifications.
My hobby has been Astronomy for over 50 years. I currently ownand use a 30 inch portable telescope. I taught at the University Level for 13 years. My personal interest in life, in general, has always been science oriented.
President - Erie County Mobile Observers Group for over 15 years.Member of allexperts.com astronomy catagory for over 8 years.
Astronomy Technology TodayErie Times Newspaper - I wrote the "Over Erie Skies" columnfor 11 years.
BS Metallurgical Engineering Grove City College, PAMaster's Degree, Gannon University, Erie, PAAlso retired USAF pilot, 20 years.
I was the discoverer of the Mini-Coathanger Asterism up in Ursa Minor. I earned 6 Air Medals with USAF and retired after 20 years of service with the rank of Major, with over 2100 hours flying time.I also earned the rank of Eagle Scout in 1956.
Hi Gail, Water vapor in the air measures from a trace, to up to about 4% maximum, see http://www.theweatherprediction.com/habyhints/40/ Your hygrometer measures specific humidity, not relative humidity
Hi Gail, There is no pressure/temperature change involved like we see with cloud formation outside. As stated earlier, that's really not steam on the bathroom mirror, but rather condensed (liquid droplets)
Hi Karen, The water molecule can also be written HOH which is actually more accurate, so the actual chemical equation is 2 molecules of HOH yields 2 hydrogen diatomic molecules and 1 Oxygen diatomic
Hi Gail, In addition to that, closed, non-air conditioned spaces filled with people, heat from computers and other machinery running, produce both heat and pollution. I've read where the air in a closed
Hi Gail, Technically, what you see coming off hot water is not 'vapor', but tiny, condensed liquid water droplets in the air... because the air above the hot bath water is 100% saturated (100% relative

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