If you travel to the other side of the world, from America to Asia, expect some very interesting things are are "equal but opposite."
For example, my home town is cold in the winter and when the wind picks up, we have a chill factor index. So if the actual temperature is -12 degrees, a wind can take this down to -50 degrees.
In Asia close to the tropical zone, the opposite happens. The actual temp may be 70 but the heat index (in the shade) can go up to 80 or more.
