A normal dose of caffeine is about 50 mg to 200 mg. Caffeine works best when you take it on an intermittent, off-and-on basis. Higher doses can have much more potent effects. A dose of 500 mg or 600 mg of caffeine can affect you much like a low dose of an amphetamine.
This means the 25,300 American engineers employed in this field earned an average hourly wage of $43.90. The bottom ten percent earns as low as $53,120, while the top ten percent of materials engineers earn as much as $144,720 every year. Embed This Image On Your Site(copy code below):
Average Mechanical Engineer Yearly Salary in the United States. Mechanical Engineers earn a median salary of $83,590 per year. Salaries typically start from $53,640 and go up to $128,430. Learn more about the Mechanical Engineer job market for salaries of real jobs in your area.