Anyone without an electrical engineering or computer science degree may look at modern marvels of technology like their laptops, televisions, or home appliances as magic boxes that are simply useful ...

Add Yahoo as a preferred source to see more of our stories on Google. Man looking at an open electrical panel in a home - Photoalto/eric Audras/Getty Images Imagine you're relaxing in your living room ...

When the power fails, you expect your generator to hum steadily in the background, not to spend the night tripping breakers and burning through fuel for almost no useful power. The most common culprit ...