阜阳市白斑网上医院(阜阳省立医院查过敏源) (今日更新中)

In like a lion, out like a lion?Don't let this weather April Fool you, after a warm weekend in many parts of the US, temperatures are dipping dramatically.From St. Louis to New York, millions of Americans enjoyed barbecues, beaches and parks with temperatures reaching into the 60s and 70s. Even parts of Alaska reached 70 degrees on Saturday -- the earliest in the year anywhere in the state has hit that high.But here's hoping the tulips and the sprinkler systems haven't yet made their way back into your yard as temperatures will be falling rapidly across large swaths of the country.By Monday morning temperatures are expected to drop so dramatically that over 20 million people from Arkansas to North Carolina will be under a freeze warning.Northeast likely to experience most dramatic changeCNN meteorologist Michael Guy expects a stunning reversal of temperatures for April 1 -- ranging from 10-20 degrees below average for this time of year.Guy says the most extreme drops are forecast to be in the Northeast, with New York City dropping from Sunday's 65 degree high to a forecast 46 degrees, Boston falling from 70 to 45 degrees and Washington DC from 64 to 45 degrees.The cold snap is due to a strong cold front moving in and the battle between warm versus cold air this time of year, he says.Most people in the Northeast, mid-South and Midwest will see highs in the 40s and the 50s.That means a city like Pittsburgh, after reveling in a high of 67 Saturday, will fall back to earth with temperatures in the upper 30s on Sunday.As the United States wakes up Monday, many of us will be trading out our flip flops for a closed toe and pulling our winter jackets back out of the storage closet.This is only temporary, however, as some part of the South are expected to bounce back to spring by Wednesday with Atlanta seeing temperatures of nearly 80 by next weekend. 1886

Inspired by the mock plan to storm Area 51, Scotland now has an event scheduled to definitively prove the existence of its own elusive creature: the Loch Ness monster.On Facebook, at least 21,000 people have RSVP'd 227

India has successfully launched a mission to soft land a rover on the moon, in a landmark moment for a nation trying to become a space superpower.The country's latest lunar mission, Chandrayaan-2, which means "moon vehicle" in Sanskrit, took off from the Satish Dhawan Space Center at Sriharikota in Andhra Pradesh state at 2:43 p.m., Monday local time (5:13 am ET).The launch was originally scheduled for July 15, but was abruptly called off just 56 minutes before lift-off due to a "technical snag." India is now on the way to becoming the fourth country -- in addition to United States, China and the former Soviet Union -- to make a soft-landing on the lunar surface.The Chandrayaan-2, which weighs 3.8 tons and carries 13 payloads, has three elements -- lunar orbiter, lander and rover, all developed by the Indian Space Research Organization (ISRO).It will travel for two months, before positioning itself in a circular orbit 62 miles (100km) above the moon's surface. From there, the lander -- named Vikram after the pioneer of the Indian space program Vikram Sarabhai -- will separate from the main vessel and gently land on the moon's surface near its South Pole.A robotic rover named Pragyan (meaning "wisdom") will then deploy and spend one lunar day, or 14 Earth days, collecting mineral and chemical samples from the moon's surface for remote scientific analysis.Over the next year, the orbiter will map the lunar surface and study the outer atmosphere of the moon.Kailasavadivoo Sivan, ISRO chairman, said in June that the last 15 minutes of the landing "are going to be the most terrifying moments for us."As well as coinciding with the 50th anniversary of the Apollo moon landing, the launch comes as other space agencies revisit the idea of sending humans to the moon and beyond -- NASA has touted a bold plan to return American astronauts to the moon by 2024.India's space ambitionsThis mission is significant for India -- the country wants to become a major space player and put Indian astronauts in space by 2022."India wants to show, especially since Prime Minister (Narendra) Modi came into office, that India is a major power, and that India has to be treated as a major Indo-Pacific power," said Rajeswari Pillai Rajagopalan, head of the nuclear and space policy initiative at the Observer Research Foundation.Chandrayaan-1, India's maiden lunar mission, discovered water molecules on the surface of the moon. As part of that mission, an impact probe crashed into the moon's south polar region in a controlled landing.India's attempted soft-landing is a far greater technical challenge than the controlled crash of Chandrayaan-1.The two Chandrayaan missions are a precursor to Chandrayaan-3, which is scheduled to make a return mission to the moon in 2023-2024.In 2014, India became the first Asian nation to reach the Red Planet, when it put the Mangalyaan probe into orbit around Mars. The Mars Orbiter Mission famously cost million -- less than the 0 million than Hollywood spent making space thriller "Gravity."In 2017, India 3072

INDIANAPOLIS —Indiana teachers were hit with pellets during an active shooter training at a school, the Indiana State Teachers Association said Wednesday.Exact details on when or where this happened are unclear, but an ISTA representative testified in front of the Senate Education and Career Development Committee that some of its members were injured by the pellets.The representative, Gail Zeharalis, said teachers were taken into a room four at a time, told to crouch down, and were shot “execution-style” with the pellets. She said welts appeared on their bodies, and blood was drawn.Zeharalis’ testimony was to push state lawmakers amend a bill to include limits and safety precautions during active shooter training in schools. The teachers were “terrified,” but were told not to tell anyone what happened, ISTA says. A Twitter thread details Zeharalis’ testimony.“No one in education takes these drills lightly,” one tweet reads. “The risk of harming someone far outweighs whatever added realism one is trying to convey here. ISTA requests an amendment in bill so that more reasonable limits are placed on these drills."ISTA would like to have educator and student safety addressed in active shooter drills at schools. ISTA heard from members who were injured during a recent training.— Indiana State Teachers Association (@ISTAmembers) 1357

In the fight against climate change, the dairy industry is coming under increasing scrutiny for its environmental impact, and consumers are beginning to care more about the carbon footprint of their food. According to the 234

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