English grammar may look easy at first. But we all make silly errors without even realising it. Most of you write or speak English with confidence. But later you realise a small mistake has flipped ...

Facebook is testing a controversial new limit. See the basic feature of sharing links that’s now locked behind an $11.99 paywall for some users. Facebook tests limiting free users to two link posts ...

1 College of Civil Engineering and Transportation, Hohai University, Nanjing, China. 2 Department of Information and Communication Engineering, Hohai University, Nanjing, China. The underwater ...

Delhi Metro has been one of the busiest and most-relied-upon public transport systems in the capital since its launch. It has been carrying millions of passengers every day, and their safety is the ...

Watch the unboxing and test of my new ultrasonic cleaner – is it really as great as they say? #UltrasonicCleaner #Unboxing #ProductTest Supreme Court Is Told Trump Tariffs Are Illegal $3 Trillion Tax ...

What do bees and ultrasound equipment have in common? The answer is Michael Geng, beekeeper and engineer at Baker Hughes in Hürth, Germany. But there is another link: both ultrasound and bees use ...

The Nation’s Report Card, released last week, shows the K-12 school system as bad and getting worse. A record 32% of high school seniors cannot read proficiently, and almost half cannot do basic math.

High school seniors had the worst reading scores since 1992 on a national test, a loss probably related to increases in screen time and the pandemic. Their math scores fell as well. By Dana Goldstein ...

One of our editors here at AOL Shopping recently had her rings cleaned at a local jeweler and could not stop raving about the sparkle. Was it magic? No. It was ultrasonic waves, naturally. What does ...

Why does the smart money keep flunking Investing 101? During the 2008-09 global financial crisis, many of the world’s biggest investors found themselves in dire need of cash because they had sunk too ...