A high pressure system has higher pressure at its center than the areas around it. Wind blows away from high pressure. Winds of a high pressure system swirl in the opposite direction as a low pressure system - clockwise north of the equator and counterclockwise south of the equator. This is called anticyclonic flow. Air from higher in the atmosphere sinks down to fill the space left as air blew outward.
Most babies get their first tooth at around 6 months, but your child's chompers may appear as early as 3 months or as late as 14, depending on such factors as when Mom and Dad started sprouting teeth and whether or not your baby was a preemie (preemies tend to teethe on the late side). How babies experience teething can vary widely, too.
Most babies will have their first tooth poke through at any time from 3 to 9 months of age; this can vary greatly, however, so don't worry if your baby begins cutting teeth later or earlier. Babies usually get their teeth in pairs, and the first teeth to appear are the lower central incisors. The bottom teeth will be followed by the upper central incisors, lower and upper lateral incisors, first molars, canines and second molars.