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发布时间: 2025-05-31 04:18:00北京青年报社官方账号
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  濮阳东方医院男科看早泄技术很不错   

At least two people were injured when an air duct fell from the ceiling at Kalahari Resort in Sandusky, Ohio, according to the Erie County sheriff's office.According to a 911 caller, a 25-foot section of the duct fell into a pool area.Went to kalahari for a fun day with my daughter and now we have to leave bc of the tubes fell pic.twitter.com/2S3j9M33q5— Phil is to sweet (@Philsmarshmalow) March 12, 2018 415

  濮阳东方医院男科看早泄技术很不错   

BALTIMORE — It's not just the news of a Free Little Library being vandalized that is turning heads in a Baltimore community. The narration of the crime itself is worth its weight in laughter."I thought it was hilarious when I sped it up and cut it," said Jacqui Cummings. "I said to myself, 'you don't need to fight over it, just make a joke of it.'"The initial vandalism happened on November 7th around 8 p.m. outside Notre Maison Connects. The non-profit focuses on empowering youth while supporting families and strengthening communities.Cummings is the founder of the organization. She said when she first saw the damage, she shed a tear."I did because I do a lot of work myself," she said.Cummings is no stranger to hands-on-work. Not only did she do metal-work to create the Free Little Library, she's experienced in hard labor, helping build day-care centers in other countries."I love giving back and educating," she said.In light of the vandalism Cummings launched a community book drive. So far more than 200 books have been donated."Some are children’s level books and some adult books," said Cummings " There are different books for all levels and I like that variety."This story originally reported by Dave Detling on WMAR2News.com. 1254

  濮阳东方医院男科看早泄技术很不错   

As schools start re-opening around the country, daycare and early childhood education centers are opening too.A question on the mind of parents is, "Should you send your toddler or preschooler back?"Like every other working mom, Danielle Green admits it's challenging. She basically has two jobs. Her career as a scientist, and her around-the-clock job of mom to 2-year-old Corey and 6-month-old Dylan keeps her busy.“Having children is a full-time job in itself so it turns more into a full-time job watching kids during the day and then doing the work during nap and evening,” Green said.It’s is not only exhausting, but she says, it's 100 percent, not realistic.“It adds a lot of stress for parents,” Green said. “For me, it added a lot of stress because we want to dedicate as much time as we can to our kids and so I took the path to dedicating everything to my kids and doing the work while the kids were sleeping.”So, when her daycare opened back up, Green and her husband talked and decided it was time.“There’s uncertainty in sending a child to daycare during a pandemic, but if we’re being realistic, eventually our kids are going to have to go back to school, so the question becomes at what point do we re-enroll them,” Green said.It's a topic that parents all around the country are discussing, because we all know it’s hard to do both. Parenting expert Gigi Schweikert said give up the dream of doing it all because no one can.“What I know as a working parent of four is that you can’t give your work 100% and you can’t give your children 100% so having your children in childcare gives them the opportunity to have the education socialization and guidance they need while you as a working parent can have that individualized concentrated time to give work your full attention,”Schweikert said.But to send your children back during a pandemic isn't easy. You have to do quite a bit of homework, make sure no one is allowed in the center aside from your child and staff members, and review all the protective measures for your county and state.Things like temperature checks, masks and face shields are being required at some daycares. Experts suggest inquiring about ventilation and cleanliness. And get parent referrals. A lot of them.“What really is important is trust. You’re going to need to check off all the boxes of making sure people are cleaning, making sure air is really good. Instinctually once you make that checklist, you have to say as a parent, 'Do I trust these people with my most important thing which is my child,'” Schweikert said.There are some things that might be missing because of COVID-19, like parent and teacher visits. Some facilities like Lightbridge Academy are now reliant on electronics and in-center cameras.Green said she's confident in her decision. Her boys are happy and healthy every day, and she feels confident that she's successfully managing her career.“It makes me feel good to know that the daycare is actually practicing the appropriate safety precautions and wearing the appropriate protective equipment, take temperatures it is an added measure,” Green said. 3130

  

Ashley Meadows has a tough job. As the gallery guide coordinator at the Hirshhorn Museum in Washington DC, she tries to get people to talk about modern and contemporary art.Consider the look of panic on people's faces when they're urged to express an opinion about a Jackson Pollock painting."It's hard to start a conversation with a stranger," Meadows, 33, said.But these days she has an ally in her efforts: a small humanoid robot named Pepper.The human-shaped robot stands four feet tall on one tapered leg, a shiny white body and big puppy dog-like eyes.Tucked into the curves of the Smithsonian's brutalist modern art temple, Meadows watches Pepper entertain guests. It dips at the waist, plays music and offers to take selfies -- the most popular of Pepper's tricks.This particular Pepper is one of a 25 strong army of robots at The Hirshhorn Museum and three other Smithsonians in the city, including The African Museum of Art, the African American Museum of History and Culture and the Smithsonian Castle.The robots made their debut this week.Pepper was donated by its manufacturer, the Japanese company Softbank Robotics.Pepper, first unveiled in 2014 in Japan, can be programmed for different use cases, whether it's at restaurant chain Pizza Hut, airports or now museums.But Pepper has limited functionality. It won't go off script but can tell guests a story, give them more information about a piece of art or "do something fun," like play music and dance with guests.Rachel Goslins, Smithsonian's director for the Arts and Industries Building, hopes Pepper's presence will encourage people to be more engaged as they walk through the galleries."I'm the mother of the robots," Goslins said.She decides which museums they're stationed at and and what they do. They're typically positioned in spots where she hopes for increased traffic or for people to linger longer."They're attracted to the robots like a magnet," Golsins said of its success so far.Pepper has already doubled foot traffic to a frequently missed section of the Museum of African American History and Culture -- the second floor educational gallery.But Pepper isn't perfect. Some visitors complained the robot couldn't speak or understand any language besides English. Others repeatedly asked Pepper questions it couldn't answer.Each Pepper robot has bodyguards to make sure the system is properly functioning, its software is updated to protect against hacking and that people don't harm the machines themselves.After entertaining visitors for most of the morning, Meadows powered down Pepper for a rest. The robot's eyes went dark and its white form slumped over like a puppet released from its strings."Say bye, Pepper!" said Meadows, wheeling the robot off the floor. 2758

  

At 3 p.m. ET on Monday, November 26, a group of researchers will be really sweating. The NASA InSight spacecraft will try to land on Mars.After six months of flight, the lander component of the probe will detach itself from the cruise stage and head into the atmosphere. The lander component initially looks a fair bit like the re-entry capsule used in the 1960s and 1970s for the Apollo moon missions -- sort of conical, with a smooth and flat bottom. That bottom is a crucial heat shield that is designed to protect the probe as it passes through the thin Martian atmosphere.The landing is a devilishly difficult feat. The landing capsule has to batter its way through the atmosphere. It will fly through the Martian air at an initial speed of 12,300 mph, and it must hit the atmosphere at an angle of precisely 12 degrees. Any shallower, and the probe will bounce off into deep space. Any steeper, and the probe will burn itself up in a spectacular and fiery death. The probe will first touch the atmosphere six minutes and 45 seconds before landing. During this phase, it will experience acceleration 12 times that of the Earth's gravity. Were the probe a 150-pound human, during the flaming descent, it would weigh nearly a ton.About 3? minutes after the probe hits the atmosphere, a parachute will deploy, slowing down the probe even more. Fifteen seconds later, explosives will blow the heat shield off, exposing the actual InSight probe hidden inside. Ten seconds after the heat shield falls away, the probe will extend its legs, much like an airplane extends its wheels before touching down.The probe will fall for an additional two minutes attached to the parachute and protected by its conical shell. About 45 seconds before InSight lands, it will drop out of the shell and fall toward the surface. As soon as it leaves the shell, its landing rockets will ignite.The actual InSight probe looks a little bit like the Apollo moon lander, with three legs to support it and a boxy top. The rockets will slow it further and stop any remaining horizontal motion. Then, about 15 seconds before touchdown, the InSight probe will descend at a speed of 8 feet per second, before hopefully touching down gently on the Martian surface.The entire landing sequence will take about seven minutes to occur. A radio signal from Mars to Earth currently takes about eight minutes and seven seconds to get here. So the complete landing process will take place before we find out if it was successful. It will be done automatically, entirely by the probe itself. For the scientists and engineers who designed InSight, this is called "seven minutes of terror."And they are right to be worried. Mars is a graveyard of failed probes. There have been 44 attempts by various national space agencies to land on Mars. Eighteen have been successful. Twenty-three have not. Three have achieved orbit but failed at a landing.So, what does InSight hope to achieve? Well, as it happens, a lot. But it's different than the intrepid Curiosity probe, which NASA landed in 2012. InSight will not move around. Instead, it will stay put and tell us of the interior of Mars.One thing it will do is emit radio waves that we can monitor on Earth. By making careful measurements of how the frequency of the radio waves change, we will be able to measure the degree to which Mars wobbles as it rotates. That will tell us something about the core of the planet, specifically its makeup and information on the degree to which it is molten.InSight will also deploy a seismometer to listen for marsquakes (like earthquakes, but Martian-style) and for impacts of meteors on the planet. Information gleaned from the waves the seismometer detects will tell us more about the planet's interior.The third thing InSight will do is to dig below the planet's surface. Using a jackhammer, the probe will drill down 5 meters (16 feet) into the planet and, basically, it will take the planet's temperature.There are many reasons this is interesting. Taking the temperature at that depth will allow planetary scientists to determine how much heat is escaping from Mars. More broadly, this measurement will allow a clear determination of the temperature of the planet much closer to the core.This information will tell us a lot about how Mars formed, which, in turn, will add to the information of how rocky planets, including our own Earth, typically develop.And if you're more of an explorer kind of person and not so interested in Martian geology, it will also tell us how warm the planet is at modest depths, which will tell us if there is any chance of liquid water on the planet. Perhaps obviously, if the Martian subsurface is warm enough, any buried water will be in liquid form and not ice. Finding liquid water would be the key discovery that would make Martian exploration relatively easy. A relatively recent possible discovery of a buried Martian lake was promising, but the data was not conclusive. Knowing that the ground is warm would be very comforting to possible future explorers.Exploring the solar system is the first step toward exploring the stars. The InSight probe will give us --well -- insight into whether this is something that humanity will achieve in the foreseeable future.And maybe Elon Musk's bet on him getting to Mars will become true. 5329

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