Eeny, meeny, miny, mo, catch a tiger by the toe – so the rhyme goes. But even children know that counting-out rhymes like this are no help at making a truly random choice. Perhaps you remember when ...

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 ...

Editor's note: Last updated following the Dec. 10, 2025 drawing. Let's face it. You face some pretty steep odds to win the Powerball jackpot, like a 1 in 292.2 million chance. So is there any way to ...

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 ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Anthony Battle is a CERTIFIED FINANCIAL PLANNER™ professional. He earned the Chartered ...