CHICAGO (CBS) --If you were late to work Tuesday morning because of CTA train delays, you were not alone. Switching issues on elevated trains in the Loop delayed thousands of morning commutes. The ...

CHICAGO (CBS) --Service on the 'L' tracks in the Loop was back to normal Monday afternoon, after a major headache during the morning commute forced the CTA to reroute three train lines, and riders ...

Recently had situation at work where a switching loop disrupted the entire network and took several hours to track down. Is there a simple way to detect and block a switching loop if a malicious user ...

CHICAGO (WLS) -- Green, Orange, Brown, Purple and Pink Line trains have resumed normal service to the Loop after earlier switching problems. Loop-bound Brown and Purple line trains were holding at ...

Researchers explain why weak magnetic fields can instantly control electrical flow direction in these quantum metals. (Nanowerk News) Quantum metals are metals where quantum effects—behaviors that ...

CTA train map showing Red, Blue, Green, Brown, Pink, Orange lines. CHICAGO (WLS) -- Green, Orange, Brown, Purple and Pink Line trains have resumed normal service to the Loop after earlier switching ...

Quantum metals are metals where quantum effects—behaviors that normally only matter at atomic scales—become powerful enough to control the metal's macroscopic electrical properties. Researchers in ...