Business

Twitter co-founder Jack Dorsey steps down as CEO

Twitter co-founder Jack Dorsey, who was the social platform's first CEO in 2007 until he was forced out the following year, then returned to the role in 2015, is once again out of the job—this time, he says, by choice.

Telecom

Developing a liquid radio antenna

Solid, metal antennae have been the standard in a wide range of technologies for decades, including a wide variety of radio communications and scanning such as radar. However, research into the concept of liquid antennae ...

page 2 from 3