When turning your head, looking twice and thrice, asking a friend doesn't do much for these very confusing perspectives.

American consumers made only 16% of their payments in cash in 2023, according to the Federal Reserve. A 2022 Pew survey found that two-fifths of consumers never use cash at all. Start the day smarter.

Excitons are pairs of bound negatively charged electrons and positively charged holes that form in semiconductors, enabling ...