In an early, simple hay tedder described in 1852 and manufactured in Edinburgh by the company of Mr. Slight, the two wheels, via a spur wheel and a pinion, drive a set of light wheels, the rake wheels; on these two rake wheels are mounted eight rakes, which pick up and disperse the hay.
It should be noted, how-ever, that only about 1 out of every 10 STEM workers has a high school diploma or less. Those with gradu-ate degrees in a STEM job earned more than $40 per hour, nearly $4.50 more per hour on average than those with non-STEM jobs.
Location also affected a CRNMâs average hourly wages in 2013. For example, in Pennsylvania, CRNMs earned $38.33 an hour. CRNMs in Utah had an average hourly wage of $39.03, and those in South Carolina earned an average of $39.43 an hour. CRNMS in Minnesota earned $48.27 an hour, while those in New Jersey earned $48.77. Washington CRNMs earned $49.17 an hour and Arizona CRNMs earned $49.99 an hour.