After testing seven different popcorn makers, I found the best one for each type, whether you want a stovetop model or an air popper.

Abstract: The design problems of electric machines are actually treated as a kind of mixed-integer problem, because the machine shapes are defined by some integer variables, such as number of slots, ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. An automatic transfer of funds is a banking arrangement that allows for regular, scheduled ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Yarilet Perez is an experienced multimedia ...

Abstract: The rapid development of information and wireless communication technologies together with the large increase in the number of end-users have made the radio spectrum more crowded than ever.