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.
(United States). For Civil Engineering Interns, hourly average wages total $15.10 per hour. The vast majority of Civil Engineering Interns (81 percent) survey respondents are men. The majority of workers are highly satisfied with their job. Some workers in this field â approximately one-half â are not awarded benefits.