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):
A Mechanical Engineer earns an average salary of â¬31,593 per year.Most people move on to other jobs if they have more than 20 years' experience in this field. For the first five to ten years in this position, pay increases sharply, but any additional experience does not have a big effect on pay.â¬20,790 - â¬50,097. Mechanical Engineer earns an average salary of â¬31,593 per year.