Thanks to the development of new, lightweight rotors, engineers in Germany have created a small wind turbine that excels at ...

Letting electric vehicles strategically charge from and discharge to the grid could spark environmental and public health ...

Failure to get sufficient current to devices when they need it results in voltage droop, timing delays, and functional failures.

Net profit margin shows a company's remaining revenue after expenses as a percentage. To calculate net profit margin, divide net income by revenue and multiply by 100. Comparing net profit margins ...