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.
Naturally, many with a degree in physics will become working physicists, conducting research and using findings to develop theories. According to the Bureau of Labor Statistics, about 16,860 physicists earned an annual mean wage of $112,020 a year as of May 2010. However, a physics degree can also lead to a career in astronomy, considered a subfield of physics. Astronomers earned $93,340 a year on average the same year. Those specializing in nuclear physics may have worked as nuclear engineers, averaging $101,500 a year, or as nuclear technicians, making an annual mean wage of $61,970.