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):
The national average salary for a Engineer is $77,182 in United States. Filter by location to see Engineer salaries in your area. Salary estimates are based on 68,284 salaries submitted anonymously to Glassdoor by Engineer employees.