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During holidays, at home.

I came to know this unique individual in a very simple way. One afternoon, in the little town where I then lived, I was walking my dog when he began to behave strangely, rolling wildly on the ground.

While I was wondering what was the matter with him, I became aware that someone was walking by my side—a man of about 30, poorly dressed, collarless and hatless. A beggar, I thought, and was about to put my hand in my pocket. But the stranger smiled peacefully at me as though we were old friends, "He's got a tick（扁虱），poor guy, he said, pointing to my dog, "Come along. We'll have it out（ There was such warm friendliness in his eyes that I took no offense at his familiarity. I followed him to a park bench and sat down beside him.

Strange to say, my Kaspar , who was usually wary（警惕的）of strangers , responded at once , and put his head on the man's knee. Searching the dog's coat with long and sensitive fingers , the stranger finally said "Aha!" and released kaspar. "Here it is , '' he laughed ,holding something in the air. As the do gran hurriedly the stranger rose with a nod and walked on. His departure was so sudden that it did not occur to me until later that I should have thanked him.

At home, still considering the man's strange behaviour I reported the adventure to our old cook. "Oh , that was Anton ," she remarked, "He's got an eye for everything. " I asked what he did for a living. "Nothing ," she said, as if astonished by my question.

"Well, I said, "Everyone has to have something to live on."

"Not Anton," she said, "Everyone is glad to give him whatever he wants. He doesn't care about money. He doesn't need it, either. " Well , this was strange.

注意：
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I resolved to learn more about him. 

In later years I have often thought of Anton.

Astronomers have published a major finding (recent) : A black hole has been releasing energy from a small star was shredded(吞噬)in 2018, after two years in which it didn't emit(发射)any such material.

"Super unusual/- said Yvette Cendes, an astronomer at Harvard, "We've never really seen this before to this degree."

Researchers made t he  (discover) when they used a  (power) radio telescope facility to check some two dozen black holes where stars had been shredded after (come) too close to them. Such happenings (call) tidal disruption(潮汐破坏)events, or TDEs.

What they found was that one of the TDEs was emitting energy at an unusual speed  at a very surprising time： more than two years after the event.

This behavior is different from what has been observed in black holes before in two ways. First, the timing: it's more common (see) radio emissions from black holes with in the first few months after swallowing a star. And second, the energy emitted in this case doesn't quite fit in  what astronomers have seen before.

In most cases of black holes swallowing stars, perhaps 99%, the outflow is lower in energy. And in 1% of cases, that outflow, at about half the speed of light, rarely (occur).

In battling leukemia（白血病）, 9-yea--old Harper Harrell has devoted her days—in the hospital—to raising money for the V Foundation for cancer research. "I know it's 1  , but it deserves my effort , " said Harrell.

After Harrell was diagnosed（诊断）with leukemia in October 2021 , she started learning about the foundation which 2  cancer research. The foundation has already 3  nearly $ 290 million for cancer research nationwide. The foundation's administrative costs are paid 4  by itself , which means 100% of donations go to cancer research.

Believing one small thing could change a lot , Harrell started to 5 some drawings in her notebook shortly after beginning treatment. One of them was a ribbon （丝带）with a "Peace out , cancer" message written below it. Harrell thought the 6 would be a great T-shirt for children facing a（n） 7 battle.

While Harrell was 8 , her mother , Heather Hindin , found a way to bring her 9  to life. She 10  a T-shirt campaign online. The plan was to donate half of then come to the foundation while using the rest for her daughter's medical expenses. They have 11 over $ 24,000 this year , which will specifically go to the foundation , after launching two T-shirt campaigns.

"There are all of these messages of 12 that people post when they order , " Hindin said. "They help so much with her 13 and keeping her positive. " Harrell , who says she has always had a 14 for helping others , offered a simple piece of advice： "Try to help and assist where you can , and you will achieve something 15 ."

Itissoeasytojustgohomeandshutyourdoorwithoutgetingtocnowyourneighbors Butbeinganactiveneighborwilturnyourlivingplaceintoacinderandmorecaringneighborhood

 You don't have to show up with a fresh apple pie or anything lice that. It's truly as simple as saying hello? introducing yourself and asking a few open-ended questions. But they are the first step to becoming a kind neighbor.

Then get out of your comfort zone and mace efforts to know more about your neighbors.  （ And if you feel comfortable? let them know that you're there to help, if they ever need another hand.

Another way to show your neighbors that you care is by making your small acts of kindness a regular practice. This can be cleaning up the litter or even cleaning up after the pets have made a mess on your block. , you can ask your partner or kids to pick a bunch of flowers from the garden to give your new neighbor.  .

Remind yourself that being connected feels good and boosts your mood in the long run. If you take the first step, your small acts of kindness can encourage others to pay that kindness forward.  . Challenging as they are, reaching out to your neighbors is worth the efforts.

A. Or if you have an amazing garden

B. Remember, every small gesture counts

C. Ifyouwanttoberespectedandcaredbyyourne8ghbors

D. For example , ask for their names and learn what they do for work

E. Your attitudes towards your friends also set an example for your kids

F. It doesn't take a lot of money or a generous gesture to bean active neighbor

G. In the end , more and more people in the neighborhood will feel much better

A new study finds that less than seven percent of the adult population in the US have what health experts consider good cardiometabolic。^脏代谢）health.

Using information on roughly 55,000 people over the age of 20, the results show just 6. 8 percent of American adults reached optimal（最佳的）levels of health in 2018. Moreover, the study found American health has been in sharp decline over the last 20 years. In 1999, one in three adults had a healthy weight. By 2018, that number fell to just one in four Americans. At the same time? three in five people were free of diabetes in 1999. By 2018, however , more than six in ten adults had the condition!

"These numbers are striking. It's deeply problematic that in the United States , fewer than 1 in 15 adults have optimal cardiometabolic health , " says Meghan O'Hearn , one of the researchers from Tufts University. "We need a complete overhaul （革新）of our healthcare system , food system , and living conditions , because this is a crisis for everyone."

Instead of just looking for signs of disease the team focused their study on the signs of good , moderate , and poor cardiometabolic health. "Disease is not the only problem ," O'Hearn explains, "We don't just want to be free of disease. We want to achieve optimal health and well-being."

Researchers also found large health gaps between US adults of different genders , ages , and education levels. Specifically , the study found Americans with less education were half as likely to be in peak cardiometabolic health.

O'Hearn adds , "Identifying these individuals and addressing their health conditions and lifestyle early is critical to reducing growing healthcare burdens. Its impacts on national healthcare spending and the financial health of the entire economy are enormous. And these conditions are largely preventable. We have the public health and clinical interventions and policies to be able to address these problems."

As we all know, insects can be remarcably agile(灵活的)in flight. This is really hard to build into flying robots, but MIT Assistant Professor cevin Yufeng Chen has developed an insect-sized drone(无人机)that approaches insects' agility.

Typically, drones require wide open spaces, "ff we look at most drones today, they're usually quite big," says Chen. "Most of their applications involve flying outdoors. The

question is： Can you create an insect-sized drone that can move around in very crowded and complex spaces?"

According to Chen, he over came many problems when building the drone. The insect-sized drone requires a fundamentally different construction from a larger one.The large drone is usually powered by a motor, but the motor loses efficiency as you shrink it. So, Chen says, "For an insect-sized drone, you need to look for alternatives. "The principal alternative until now has been employing a small , rigid actuator (执行器) built from new materials. Chen designed a more agile tiny drone using soft actuators instead of hard ones.

Each actuator can beat nearly 500 times per second and weighs just 0. 6 gram, approximately the mass of a large bee. It gives the drone insect-lice agility. "You can hit it when it's flying, and it can recover?" says Chen. "It can also turn over in the air. " The drone looks a bit lice a tiny cassete tape with wings, though Chen is also working on a new one shaped like a dragonfly.

Chensayshisdronecanbeusefulinindustryandagriculture.It can perform machinery inspections to ensure safety and function.Its potential applications include completing search-and-rescue missions following a disaster. ^"All those things can be very difficult for existing large-scale drones, - Chen explains.

I have always loved the Arthurian legend（传奇）, as there is something quite special about cingArthur^'andofcourseMerlin^'myfavouritecharacterfromthestories.

Death of an Empire is the second volume in Mc Hume's "Merlin" series which details Merlin's life from birth. Merlin travels across the Roman Empire in search of his father , a voyage of discovery to understand just who he was. Eventually Merlin gets involved in the fight against the Hun's invasion（入侵）of Europe at the Battle of the Catalaunian Plain.

Serving under the General Flavius Aetius , Merlin builds a reputation by saving the lives of thousands of soldiers.When he finally reaches Rome he saves many more.But afar deadlier conflict between Emperor Valentinian  and Senator Petronius Maximus is around the corner and Merlin must use all his strength to carry out his work.

If I had to choose just one word to describe this novel there would be no other choice than "immersive（身临其境的）". There has clearly been a serious amount of research carried out by the author. Combined with the descriptive prose and imaginative story the book really does attract you from almost the very start. The story really does feel lice you are apart to fit as Merlin travels across the Roman Empire.

The author does a great job of mixing the rich history with established Arthurian legend. The battle scene is handled very effectively. The author employs a very effective form to show the main fight and this not only adds a degree of tension and a good level of excitement but almost maces you feel lice you are right there hearing about what happened.

Death of an Empire is a very fine novel , a wonderfully rich tale and a rewarding story.

Exploring Wildlife Conservation in Kenya

Day 1： Nairobi, Kenya

Arrive at the airport in Nairobi, where our staff will be on hand to drive you to the hotel. Enjoy the rest of the day at leisure.

Accommodation^：Tamarind Tree Hotel

Day 2： Lewa Wildlife Conservancy

A charter flight(包机)brings us to Lewa Wildlife Conservancy, a 62,000-acre grassland on the north of Mount Kenya. Considered a model in the conservation field, this healthy wildlife habitat is home to a number of rare species , including the giraffe , the Grevy's zebra , and African wild dogs. Lewa and the neighboring Borana Conservancy also harbor roughly 15 percent of Kenya's entire rhino population.

Acc3mm3dati3n^：ElewanaLewaSafariCamp

Day 3: Amboseli National Park

Fly by private charter to Amboseli National Park, where vast grasslands are irrigated by underground runoff streams from Mount Kilimanjaro. These landscapes provide a habitat for hundreds of elephants, macing the park one of the best places in Africa to spot these large creatures. The travel begins on the drive to Tortilis Camp, set within view of Mount Kilimanjaro.

Accommodation: Tortilis Camp

Day 4： Masai Mara National Reserve

At first light, head out to track the animals that crossed the area during the night. This area has one of the highest concentrations of large predators（捕食性动物）in all of Africa. Then watch large groups of hippos in the Mara River and crocodiles sunbathing on the shore.

Accommodaion^： cichwa Tembo Camp