A laser is usually constructed from two basic elements: a material that provides optical gain through stimulated emission and an optical cavity that partially traps the light. When the total gain in ...

The Powerball jackpot for Monday’s drawing is $33 million - less than a week after someone won $1.8 billion on Christmas Eve. Saturday's Powerball jackpot was $21.1 million after a ticket holder in ...

KOHLER backup generators automatically switch on in the event of a power outage. Generators help run electricity to your home for appliances, whole-home circuits, sump pumps, HVAC units and water ...

Were you a lucky winner? Check your tickets for lottery draw games in Maine here. *Based on iOS download data collected by Sensor Tower. Jackpocket is the official digital lottery courier of the USA ...

If you often lose power where you live, whether because of seasonal storms such as hurricanes or due to problems with the electrical grid, having a whole-house generator can be very convenient. It ...

For many small businesses, a laptop computer is the company's lifeline. It allows you to monitor your inventory, prepare documents and reports, and stay connected to the Internet to monitor your ...

Claims that a “world’s oldest pyramid” has been found in Indonesia have raced around social media, promising a 25,000-year ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. A Social Security number (SSN) is a numerical ID for U.S. citizens and residents to track ...