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A pedestrian bridge suddenly collapsed onto the road below near Florida International University, crushing cars and killing at least six people Thursday.Hours after the bridge collapsed, officials said early Friday that the rescue mission is now a recovery operation.Emergency crews worked overnight in what Miami-Dade Police spokesman Alvaro Zavaleta called a "very slow process" in order to preserve evidence and the safety of possible victims and rescuers, because of unstable conditions at the bridge.At least nine people were transported to hospitals for treatment, authorities said.Witnesses described hearing a loud boom Thursday and moments later, finding victims, including construction workers across the wreckage and people trapped in cars.Senator Marco Rubio, who visited the site Thursday, posted on Twitter: "The cables that suspend the #Miami bridge had loosened & the engineering firm ordered that they be tightened. They were being tightened when it collapsed today." Rubio has been a visiting professor at the university for the past 10 years.The bridge's main span, which weighs 950 ton, had just been installed Saturday over eight lanes, near the university in Miami. 1205
A new study done by researchers in Hungary and Mexico found that dogs aren't all that excited when it comes to seeing a person's face.After an MRI of 20 dogs, the researchers made their findings, and 30 people's brains were scanned while watching a series of videos that showed either the front or back of a dog or person's head.The finding, which was published Monday in the Journal of Neuroscience, was that dogs' brains aren't hardwired to focus on faces. They actually can't distinguish between the front or back of the head.The researchers said the dog's brains were more focused on whether they were seeing another dog or human, not a face.However, the humans' brains showed they were more focused on whether they saw a face.You can read the entire study below: Comparative brain imaging reveals analogous and divergent patterns of species- and face-sensitivity in huma... by Sarah Dewberry on Scribd 916
A nor'easter has smothered a vast portion of the northern east coast with a heavy layer of snowfall, wreaking havoc with major transportation routes and bringing several major metro areas to a standstill.CNN reports that some areas of the east coast received more snowfall in the last few hours than they did over the entirety of last winter.The National Weather Service reported several locations saw more than 3 feet of snow. 436
A smartphone app says it can help its users stay flu-free.Sickweather relies on user-generated reports to track trending illnesses and where they are spreading around the user's location.The app asks users what symptoms they are currently experiencing. That information is then added to a map that allows users to see if there are other disease outbreaks in the area.The app also includes helpful tips on how to avoid getting the flu.Representatives for the app say that reports of a cough, allergies, and fever can help them forecast an outbreak up to 15 weeks in advance.Sickweather is free and available for download in both the iTunes and Google?Play stores. 727
A naked man was arrested at the scene of a five car accident in Westland, Michigan on Tuesday night.The man was arrested after he got out of his truck, stripped down and started dancing in the street.Video of the arrest was posted to Facebook shortly after the crash. Police have not yet said why the man was acting so erractically.One person involved in the crash was taken to the hospital for treatment. No other serious injuries were reported. 459
来源：资阳报