[quote=J. B. funny, but i always thought and felt that higher air temps mean lower air density...

open the fridge door, and the cold air drops down to your feet;
start the heater, and the warm air goes up towards the ceiling...

;-) [/quote]

For dry air this is true. Add a bunch of water molecules (humidity) and density increases. The higher the temperature the more water the air can hold hence the term Relative Humidity.

Scott

My HT