A. The tin reflector throws the heat of the fire back upon the meat; and, therefore, assists the process of roasting and helps to keep the kitchen cool.
Q. How does a tin reflector tend to keep the kitchen cool?
A. Because it confines the heat to the hearth, and prevents it from being dispersed throughout the kitchen.
Q. Why does a lamp glass diminish the smoke of a lamp?
A. As glass is a reflector, it reflects the heat of the lamp back upon the flame; in consequence of which, less carbon escapes unconsumed (as smoke).
Q. Why are shoes hotter for being dusty?
A. 1st—Because dust absorbs heat: and
2ndly—As it destroys the blackness of our shoes, it prevents them from throwing off the heat of our feet in rays.
Q. Why can we not see into the road or street, when a candle is lighted in a room?
A. Glass is a reflector; and, therefore, throws the rays of the candle back into the room, and thus prevents our seeing into the road or street.