In this unique LEGO engineering challenge, we attempted something most would call impossible,crossing a real river using only LEGO bricks. The goal? Build a fully functional solution made entirely of ...

Acoustic smart valves work by continuously recording and analyzing sound frequencies within a water pipeline. A leak — ...

Sandiegouniontribune.com covers local news in San Diego County, CA, California and national news, sports, things to do and the best places to eat, business and the San Diego housing market.