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JACKSON, Miss. — Days and days of heavy rain have forced authorities managing dams in Mississippi and Tennessee to release more water, worsening the flooding for people living downstream. Dramatic video posted by a Tennessee fire department showed the impact: Two houses tumbled down a bluff over the Tennessee River, while many others have been swamped to their rooftops. Entire neighborhoods have disappeared in muddy water below the Tennessee Valley Authority's Pickwick Reservoir. In Mississippi, people in and around the capital of Jackson are bracing for more flooding as the rain-swollen Pearl River is expected to crest on Monday. 651

If you park your car outside, you might want to look under the hood every once in a while. You could end up with a little surprise from the critters in your yard.The squirrels around Holly and Chris Persic's home seem to be stocking up for the winter by taking walnuts from their yard in Pittsburgh and shoving them under the hood of their car.Holly was driving her car Monday when she thought it smelled like it was burning and was making a strange sound. When she popped the hood, she found more than 200 walnuts and lots of grass."They were everywhere, under the battery, near the radiator fan," Chris said. "The walnuts on the engine block were black and smelt like they were definitely roasting."Holly had her car inspected last month but hadn't looked under the hood since then, her husband Chris told CNN on Tuesday. The walnuts started falling only a few weeks ago."The squirrels worked pretty fast!" Chris said. 932

It’s snow day in the nation’s capital. Washington, D.C. is just one of many places being hit by winter weather as Winter Storm Petra moves across the Midwest and eastern part of the country. Seven-year-old Elin Neuville and her father got the day off and took advantage of the snow by sledding all morning. But it wasn’t fun and games for many others. The weather went downhill overnight, bringing snow, sleet, and heavy rain across the country. More than 160 million people were impacted. The winter storm forced thousands of flights to be canceled, including more than 700 in and out of D.C. alone. Many passengers were left stuck at airports because of delays. “I've been up since about 5 or 6, just checking to see if my flight was going to be impacted and it wasn't. It wasn't until I got here it was delayed,” said one frustrated passenger. Flooding is a big concern in parts of the south. Nashville has already received more than a foot of rain. 966

Learning how to navigate the online world safely is challenge for anyone, but it can be especially difficult for those who didn’t grow up with technology.Pierre Vidoni is 83-years-old and decided to sign up for a digital class at his local library."Young people less than 50 years old grew up with computers, so they understand the nuances of computers," Vidoni says. Amy Halfback teaches the privacy class and says many of her older students say they feel stupid."They are nervous interacting in the online world," she says. From malware, internet scams and phishing, it’s easy for anyone to get taken advantage of online. However, Vidoni says he’s not worried about privacy online.According to the Journal of Public Health, between 2 to 3 million seniors get scammed each year. A few years ago, that was Vidoni. Hackers took over his home screen and locked him out of his computer."They got into my computer, and in order to get it back, I had to pay them money,” Vidoni recalls. “And it was no small amount. It added up to about 0." His family still teases him for falling for the scam. But after taking classes and practicing keeping his identity private online, Vidoni learned the lesson the hard way.“Now, anytime someone is asking me for something that I'm not asking for, I just erase it," he says. 1322

In 2017, Uber unveiled a tip feature on its app to allow customers to leave their driver a tip. It turns out many customers do not leave a tip. According to a study conducted by Bharat Chandar, Uri Gneezy, John A. List, and Ian Muira with the University of Chicago, only about 16% of rides end with a tip. The study also found that 60% of Uber customers never tip, while 1% always leave a tip. List's study included 40 million trips in the cities of Chicago, Boston, San Francisco, Salt Lake City, Asheville, North Carolina, and Bloomington, Indiana.List's study found the average of those who do tip is .11, about 26% of their fare. The survey found that customers were more likely to tip between 3 to 5 a.m., as well as around 6 p.m. on Fridays; that female drivers, especially younger females, were more likely to earn tips; and that 5-star drivers were twice as likely to earn a tip as a 4.75-star driver.So should you tip? That is up to you, but know that according to the 992

来源：资阳报