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Math enthusiasts know all about it, and the rest of the population is probably hoping for cherry pie.But March 14 is Pi Day. While last year stretched the symbolic celebration out a little longer -- to 3.1415 -- each year presents ample opportunity for learning.To 31 decimal places, the celebrated irrational number that never ends is 3.1415926535897932384626433832795.A few more tidbits about pi and Pi Day:About piPi is the ratio of the circumference of a circle to its diameter. It's not equal to the ratio of any two whole numbers, so an approximation -- 22/7 -- is used in many calculations.Pi is essential in architecture and construction and was used frequently by early astronomers. Pi has been known for about 4,000 years, but it started to be called by the Greek letter only in the 1700s.The origin of Pi DayPi Day started 30 years ago at San Francisco's Exploratorium.Physicist Larry Shaw, who worked in the electronics group at the museum, started celebrating pi on March 14, 1988, primarily with museum staffers. The tradition has grown to embrace math enthusiasts from all walks of life.For more about pi, visit www.piday.org. 1159

Mexico is bracing for what's expected to be one of the strongest storms ever to hit its Pacific coast.Hurricane Willa is aimed at the coast's center, where it is forecast to hit Tuesday afternoon or evening. Tuesday morning, the storm was hurling maximum sustained winds of 130 mph and threatening to bring life-threatening storm surge and torrents of rain ashore,according to the National Hurricane Center.The storm weakened slightly to a Category 4 hurricane on Monday, with winds dropping further early Tuesday. Willa formed Saturday and went from tropical storm to Category 5 hurricane in just two days -- the pinnacle of what the hurricane center called "explosive" strengthening. Over the 24 hours from Sunday morning to Monday morning, Willa swelled by 80 mph.The whirlwind growth was only slightly marred by Monday's slowdown. "Willa is an extremely dangerous category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. While gradual weakening is forecast today (Tuesday), Willa is expected to be a dangerous major hurricane when it reaches the coast of Mexico," the National Hurricane Center said.Storm surge accompanied by "large and destructive waves" are forecast along portions of Mexico's central and southwestern coast. Rainfall ranging from 6 to 12 inches could spawn life-threatening landslides and flash flooding in portions of the Mexican states of Jalisco, Nayarit and Sinaloa.Willa has been a danger for forecasters as well. An aircraft with the Air Force Reserve Hurricane Hunters was forced to turn around Monday over concerns for its onboard equipment after getting blasted by a bolt of lightning from one of Willa's outer rain bands, according to the National Hurricane Center.In a tweet Monday, Mexican President Enrique Pe?a Nieto said he has asked the National System of Civil Protection to take all steps necessary to protect those in Hurricane Willa's path, as well as those impacted by Tropical Storm Vicente, a weaker system tracking south of Willa that's also primed to make landfall Tuesday. Vicente is expected to be a tropical depression by the time it comes ashore, the National Hurricane Center said.Airlines have started moving out of Willa's path. Southwest has canceled all of its flights at the International Airport in Puerto Vallarta, a resort city in Mexico's Jalisco state. American Airlines has canceled its flights in the city of Mazatlan about 275 miles north of that.Willa is on track to be one of the strongest hurricanes to ever hit the Pacific coast of Mexico, and its landfall will come three years to the day after the strongest, Category 5 Hurricane Patricia, made landfall in Jalisco.The back-to-back systems of Willa and Vicente have helped make the 2018 hurricane season in the northeast Pacific one for the record books.The season is now the most active hurricane season on record using a measurement called "Accumulated Cyclone Energy," which combines the number of storms and their intensity through their lifetimes to give an overall measurement of tropical activity in a given region.There have been 10 major hurricanes in 2018, including Willa, which ties 1992 as the most major hurricanes seen in the northeast Pacific in one year.Increasing numbers of major hurricanes, along with a greater propensity of storms to undergo "rapid intensification" are expected consequences of?warmer ocean waters resulting from climate change. The ocean waters off the western coast of Mexico are running 1-2 degrees Fahrenheit above average for late October. 3537

Marilyn Manson collapsed on stage during a concert in The Woodlands, Texas on Saturday. The musician was at The Cynthia Woods Mitchell Pavilion in the Houston metro area for the "Twins of Evil — The Second Coming" tour with Rob Zombie.Manson complained of "heat poisoning" before the third song in his set list, according to a fan's video on YouTube. Photographers had also been told prior to the show that Manson wasn't feeling ill and didn't want his photo to be taken during the concert, the Houston Press reported.In video footage from the concert Manson can be seen belting out his fourth song of the night, "Sweet Dreams," before falling over.The rock star came back for one more song before canceling the rest of his set. He later tweeted he was being seen by doctors but didn't elaborate on his condition or symptoms. 863

Mark Zuckerberg has a clear message for Congress in the wake of the Cambridge Analytica scandal: It's my fault.The Facebook CEO will take the blame for mistakes that led to the Cambridge Analytica scandal and lay out steps taken to prevent it from happening again, according to a copy of Zuckerberg's remarks as prepared for delivery to one of the committees before which he will be testifying. "It's clear now that we didn't do enough to prevent these tools from being used for harm as well. That goes for fake news, foreign interference in elections, and hate speech, as well as developers and data privacy," Zuckerberg said in the prepared remarks, which were released by the House Committee on Energy and Commerce on Monday."We didn't take a broad enough view of our responsibility, and that was a big mistake. It was my mistake, and I'm sorry. I started Facebook, I run it, and I'm responsible for what happens here."Zuckerberg is set to appear before a joint hearing of the Senate Judiciary and Commerce committees on Tuesday afternoon followed by a House Energy and Commerce Committee hearing on Wednesday morning.  1135

LOUISVILLE, Ky. — Five-year-old NeeCee, a female snow leopard at the Louisville Zoo, has tested positive for SARS-CoV-2, the virus that causes COVID-19 in humans, the zoo announced in a release issued Friday. The Louisville Zoo is awaiting confirmatory results of the other two male snow leopards – Kimti and Meru. All three cats are doing well with very mild symptoms. The zoo said it continues to monitor their health closely and expects all three cats to recover. No other animals are showing symptoms at this time. The three snow leopards began exhibiting minor respiratory symptoms, including an occasional dry cough or wheeze, within the last two weeks. It is suspected that NeeCee acquired the infection from an asymptomatic staff member, despite precautions by the Zoo.“Fortunately, based on clinical cases in large cats at other zoos in the country to this point, SARS-CoV-2 infection does not appear to be life-threatening,” said Dr. Zoli Gyimesi, the zoo's senior staff veterinarian. “We will be closely monitoring the snow leopards for ongoing symptoms and resampling them to identify when they have cleared the infection.”In April 2020, four tigers and three lions were confirmed positive at the Bronx Zoo in New York. An additional three tigers at an AZA zoo in Tennessee were confirmed to be infected this fall. Just last week, the Barcelona Zoo announced four lions tested positive for SARS-CoV-2. In all cases, the animals recovered and are doing well.This story originally reported on LEX18.com. 1522

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