[Ian Dunn] chose those very parts to produce his 4017 Decade Binary Clock. The clock uses only digital logic ICs to tell the time – there are no microcontrollers here! After four or five ...

We thought this would be a good opportunity to review the new board as well as present a How-To about building a simple binary clock. Along the way we’ll cover some basics on attaching LEDs and ...

Researchers delved into the curious case of SXP 138, a pulsar in a binary star system whose cosmic clock is not ticking as ...