What Caused the Super Bowl Blackout at the Superdome?

This Super Bowl’s post-game analysis will be like no other, as electricity and building systems experts probe the cause of the power outage that temporarily halted the Ravens-49ers game.

But officials at the Superdome and its energy company, Entergy, said further investigation is needed to get at the root cause of the electricity abnormality that plunged half of the recently renovated stadium into darkness and forced a 34-minute delay of one of the world's most watched sporting events. (See related quiz: "What You Don't Know About Electricity.")

So while sports analysts dissect how the Baltimore Ravens held off the rallying San Francisco 49ers in the second half to secure their 34-31 victory, this year's postgame analysis will include scrutiny by teams of electrical engineers and stadium systems experts.

Despite much online speculation on the subject, it's unlikely that the scale of Beyoncé's dazzling, hologram-assisted halftime show was to blame

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