Dental development. All 20 baby teeth usually come in by the time your child is three years old. Tooth eruption varies from child to child. Most children start to get teeth around six months, but it is not unusual for teeth to begin appearing as early as three months or as late as one year.
The median annual wage for astronomers was $104,100 in May 2015. The median wage is the wage at which half the workers in an occupation earned more than that amount and half earned less. The lowest 10 percent earned less than $52,460, and the highest 10 percent earned more than $166,320. The median annual wage for physicists was $111,580 in May 2015. The lowest 10 percent earned less than $55,610, and the highest 10 percent earned more than $185,230.
The Bureau of Labor Statistics estimated that 13,630 people were employed as physicists in 2009, with an average salary of $111,250 a year. The median salary came in at $106,390.The bottom 10 percent earned less than $56,210 a year, the bottom 25 percent earned less than $79,740, the top 25 percent earned $138,560 or more and the top 10 percent earned incomes of $165,750 a year or more.he Bureau of Labor Statistics estimated that 13,630 people were employed as physicists in 2009, with an average salary of $111,250 a year. The median salary came in at $106,390.