Puzzles are a hands-on way to explore simpler and complex mathematical relationships, for everyone from kids to calculus students.

They’re sharp, curious – and prone to boredom or even bullying at school. Far from the smartypants cliches, some gifted children hide or stop learning. What is giftedness? And what’s life like for ...

Two new peer-reviewed papers claim thousands of unexplained light flashes in vintage Palomar telescope images show statistical ties to nuclear tests and UFO reports. Not everyone agrees with the paper ...

Wonder why kids, teens say "67" and jiggle their hands?What it means, why it's the Dictionary.com 2025 Word of the Year and why Google has a new Easter egg ...

Trump accounts are a new type of tax-deferred investment vehicle for U.S. children, created under President Trump's "big, beautiful bill" tax and spending bill, which promises $1,000 seed ...

Top longevity scientist Eric Topol, author of the new book Super Agers, tells National Geographic which biohacks for a longer life are backed by science—and which you can skip. Skip the supplements ...

More than 70 years ago, astronomers at the Palomar Observatory in California photographed several star-like flashes that appeared and vanished within an hour — years before the first satellite, ...

A simple, low cost, and precision frequency meter uses only two pins of a pc parallel port (Figure 1). The TTL-level periodic input signal with frequency f IN connects to the ACK pin of LPT1. This ...

An interest rate can be thought of as the cost of borrowing money, or the income you earn on saved money. Many or all of the products on this page are from partners who compensate us when you click to ...