A. The fleece of wool (which is a very bad radiator of heat) was soaking wet with dew: when the grass (which is a most excellent radiator) was quite dry.
Q. Was not this contrary to the laws of nature?
A. Yes; and was, therefore, a plain demonstration of the power of God, who could change the very nature of things at his will.
Q. Why do our clothes feel damp, after walking in a fine evening in spring or autumn?
A. Because the vapour (condensed by the cold earth) lights upon them, like dew.
Q. Why are windows often covered with thick mist, and the frames wet with standing water?
A. The temperature of the external air always falls at sun-set, and chills the window-glass, with which it comes in contact.
Q. How does this account for the mist and water on a window?
A. As the warm vapour of the room touches the cold glass, it is chilled and condensed into mist; and the mist (collecting into drops) rolls down the window-frame in little streams of water.
Q. Does the glass of a window cool down more rapidly than the air of the room itself?