Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Richard Fishacre challenged the scientific orthodoxy of his day, and contemporary astrophysics has vindicated his position.

The adjusted r-squared is helpful for multiple regression and corrects for erroneous regression, giving you a more accurate ...

Natural selection uses duplicated genes as raw material for functional innovation, co-opting their existing features to new functions. Understanding genetic innovation requires two questions to be ...

Even if people share the same name, they’re still unique individuals. Take the name ‘Maria,’ for example. There are 61 million ‘Marias’ globally, but all have different personalities, different ...

Researchers from Harvard’s Department of Human Evolutionary Biology found that educated children perform better on psychological tests measuring executive function abilities, challenging the accuracy ...

The original version of this story appeared in Quanta Magazine. Imagine that someone gives you a list of five numbers: 1, 6, 21, 107, and—wait for it—47,176,870. Can you guess what comes next? If ...

Learning to play a musical instrument can protect your brain from aging, building up a defense against cognitive decline that lasts a lifetime. Researchers from Canada and China discovered older ...

Google has shown the way: You can offer typical Office programs such as word processing, spreadsheets, and presentation programs online. Free of charge and with a range of functions that is completely ...

A function is a relation such that for each \(x\)-value there is only one corresponding \(y\)-value. In other words, a function cannot contain two different ordered pairs with the same first ...

Quick Find - otherwise called Instant Search - is the default method for searching through your email inbox within Outlook, but users can run into a wide range of issues with it. You may want to ...