Create a focused speaker so your music targets only the listener. That demodulates at 40 kilohertz, with an H-bridge and ...

A development proposal to create a "downtown" Rancho Cordova is one of this year's Projects to Watch. Some high-profile construction projects are poised to make progress this year.

For almost two decades, scientists have debated whether sponges or comb jellies are the first animal lineage. Now some are ...