Okay: Lyft CEO David Risher. Here we go. This interview has been lightly edited for length and clarity. David Risher, you’re the CEO of Lyft. Welcome to Decoder.

The proof, known to be so hard that a mathematician once offered 10 martinis to whoever could figure it out, uses number ...

Riffing works in much the same way in your close relationships. When one partner shares an odd thought, an awkward feeling, ...

Examining mistakes gives students a chance to discuss misconceptions openly and find new approaches to solving problems.

Researchers have successfully developed a rapid and scalable evaporation-induced method to create continuous, uniform thin ...

In the United States, 12% of married couples with at least one spouse in their 30s or 40s have two incomes and no kids.

1. Fast and Slow Piles. This works well as a starting or closing activity. Students sort math fact cards into fast and slow piles. This visual way of tracking facts highlights which facts come ...

The present research aims to evaluate the cognitive and emotional dimensions reflected in the artistic expression embedded in children’s drawings through analysis of elements such as shape, colour, ...

Established in 1945 under the Charter of the United Nations, the General Assembly occupies a central position as the chief deliberative, policymaking and representative organ of the United Nations.

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Erika Rasure is globally-recognized as a ...

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including ...