Ever walked to the shops only to find, once there, you've completely forgotten what you went for? Or struggled to remember the name of an old friend? For years we've accepted that a forgetful brain is as much a part of ageing as wrinkles and grey hair. But now a new book suggests that we've got it all wrong.

    According to The Secret Life of the Grown-up Brain, by science writer Barbara Strauch, when it comes to the important things, our brains actually get better with age. In fact, she argues that some studies have found that our brain hits its peak between our 40s and 60s— much later than previously thought.

    Furthermore, rather than losing many brain cells as we age, we retain （保留）them, and even produce new ones well into middle age. For years it's been assumed that brain, much like the body, declines with age. But the longest, largest study into what happens to people as they age suggests otherwise.

    This continuing research has followed 6,000 people since 1956, testing them every seven years. It has found that on average, participants performed better on cognitive （认知的）tests in their 40s and 50s than they had done in their 20s. Specifically, older people did better on tests of vocabulary, verbal memory (how many words you can remember) and problem solving.

    Where they performed less well was number ability and perceptual speed－how fast you can push a button when ordered. However, with more complex tasks such as problem-solving and language, we are at our best at middle age and beyond. In short, researchers are now coming up with scientific proof that we do get wiser with age.

    Neuroscientists are also finding that we are happier with ageing. A recent US study found older people were much better at controlling and balancing their emotions. It is thought that when we're younger we need to focus more on the negative aspects of life in order to learn about the possible dangers in the world, but as we get older we've learned our lessons and are sub-consciously aware that we have less time left in life: therefore, it becomes more important for us to be happy.

    What do you do when you need to look something up? Go to the library? Open an encyclopedia(百科全书)? Click onto the Internet? These days, most people go straight to Wikipedia, the online encyclopedia. But how reliable is it?

    There's no denying the popularity and usefulness of Wikipedia. It attracts as many as 78 million visitors every month, and the site is available in more than 270 different languages. It's one of the most comprehensive resources available, which includes almost all details, facts and information that may be concerned. It's got much more information than an ordinary encyclopedia. The site is updated on a daily basis by thousands of people around the world. Anyone with an Internet connection can log on and edit the contents or add a new page. And you don't need any formal training.

Of course, there are some controls. Wikipedia has a team of more than 1,500 administrators who check for false information. And main targets for harmful comments(such as politicians) are off-limits to public editing. But with more than 16 million articles to keep an eye on, it isn't easy. So, while Wikipedia benefits from being constantly updated with information from all over the world, it's also open to “vandals”（恣意破坏公共财物者）.

    Some of the damage is easy to notice. One person drew devil horns and a moustache on Microsoft chairman Bill Gate's photo, while another edited Greek philosopher Plato's biography to say he was a “Hawaiian weather man who is widely believed to have been a student of 'Barney the purple Dinosaur'.

    But other things are harder to spot. The most common form of vandalism (恣意破坏公共财物罪)involves adding tiny items of false information into the biography of a famous person. Unbelievably, some of this misinformation has appeared in newspapers, with The Daily Mail, The Guardian and The Independent all having fallen victim to the dirty tricks. For example, in an article about British comedian Sir Norman Wisdom, one newspaper claimed that he co-wrote Dame Vera Lynn's wartime hit There'll be bluebirds over the White Cliffs of Dover. He did no such thing. And in other article, it was reported that TV Theme tune composer Ronnie Hazlehurst had written the S Club 7's hit Reach again, not true. So, if you're going to use any information from Wikipedia, make sure you double-check it first.

    I was 16 when my father finally decided he would send me to wilderness camp for several months. He had threatened to do it many times before, but my mother had always managed to prevent him from doing so. This ti me he insisted on doing it.

    The latest incident was the last straw. Impulsively (冲动地), I had pushed Mr. Ford, my math teacher, down a flight of steps at school. He broke his arm in two places. Anyway, he had agreed not to accuse me as a favor to my dad, who was in the middle of a tight race for sheriff (执法官) in our town. But my reckless behavior had my dad's closest advisor talking.

    "John, he's your son and he's a kid, but he is dragging you down," I heard Jake Hutch tell my dad through his closed office door the night after I pushed Mr. Ford. "If you can't make your son obey the rules, how can you make the law obeyed in this town?"

    So, off to Pisgah National Forest I went. I imagined hours of untold abuse at the hands of some strong sergeants (军士). I was determined not to be broken. I was who I was,

    Nearly every day for six months, a small group of other troubled teens and I carried our 30-pound backpacks on a difficult journey covering about 10 miles. We hiked in a rough wilderness that seemed untouched by civilization.

    Our sergeants were firm but kind, not frightening as I had imagined. We learned how to make a fire without matches and create a shelter with branches and grass. We learned which plants were safe to eat out in the wild. I felt myself change. I was calm and often reflective. My old, impulsive self was gone.

    One morning, six months later, my dad came to pick me up. I ran to hug him and saw happiness and love in his eyes.

    "So what's it like being sheriff?" I asked on the ride home.

    "I lost the race, Danny," he said.

    "I'm sorry, Dad." I knew my behavior probably had a lot to do with the defeat.

    Dad squeezed my shoulder and brought me close. "As long as I don't ever lose you, I'm okay."

    One night I received a Facebook message from Laura, a former classmate. "Hey Steve," she said, "I know you've always been an animal lover. I've just had a baby and I can't keep my mini pig."

    Being fond of animals, I knew I wanted the pig. I just had to figure out how to make it happen. I lived in a two-bedroom single-level house in Georgetwon, Ontario. It's tough to bring a pig back to the house I share with two dogs, two cats, and my lifelong partner.

    But I was not letting that pig go. So I told Laura I'd take the animal. When I got home with the pig, I hid her in the bedroom, and began to prepare a dinner for Alisha—her favourite bacon cheeseburgers. It's better to make her happy before introducing the new member to her.

    When I led her to the bedroom and showed her the surprise, Alisha stood in the doorway like a statue. It took her a few seconds to know what I had done. She complained about my unreasonable action. She insisted there was no more room in the house.

    I knew I was wrong, but I hoped I could smooth things over. Soon enough, the lovely pig did the smoothing for me. Never had we felt such joy as she brought to us. We got her a name "Esther".

    Esther's arrival changed our lives. A few weeks later, we decided to stop eating bacon. We figured it was our turn to try to change the world for other animals. A few months later, we moved to a farm where we cared for abandoned animals—so far, six rabbits, six goats, two sheep, one horse, three cows and three chickens.

    UK education is all about giving you inspiration to develop your knowledge and skills, freedom to be creative, and support to help you achieve your best.

    On a UK course you will benefit from excellent teaching and facilities. In order to accept students, UK education centres must meet strict quality standards set by the UK government and education bodies.

    With such a good reputation for research and education, universities and colleges in the UK attract some of the world's leading academics and professionals. You will be encouraged to express your own ideas and think for yourself.

    The attention to quality is reflected in the UK's excellent results:

    Four of the top six universities in the world are in the UK.

    The UK is a world-leading research nation. 54% of the research conducted by UK universities and colleges is classed as either "world-leading" or "internationally excellent".

    At the most recent inspection, 97% of further education colleges were judged satisfactory or better, for their overall effectiveness.

    In the recent BIS Tracking International Graduate Outcomes survey, more than 88% of international higher education graduates said they were satisfied with their UK learning experience.

    Likewise, in the Higher Education Academy Postgraduate Taught Experience Survey of UK postgraduate students, 93% rated the quality of teaching positively.

    For English language students, you'll find the UK has long been at the forefront of language teaching, and pioneered many of the techniques now used around the world. The emphasis is on learning the language through fun and participation: Instead of just listening to your teacher, your classes will involve games, problem-solving and discussions. You might also listen to songs, watch television or read magazines to practise your comprehension skills.

    The UK's boarding schools also offer excellent teaching, facilities and support. At UK independent schools (most boarding schools are independent), a teacher has just 9.4 pupils on average, so teachers have more time to give you individual support. This is reflected in the results: 91% of students from UK independent schools go on to higher education.

Researchers say they've used cutting-edge gravitational wave research to cast new light on a mystery—a 2000-year-old computer,the Antikythera mechanism found in shipwreck. 

Well over a century after its discovery,researchers at the University of Glasgow say they've used statistical modeling techniques,originally designed to analyze gravitational waves —ripples in spacetime caused by major events in the universe such as two black holes combining —to suggest that the Antikythera mechanism was likely used to track the Greek lunar year. In short,it's a fascinating collision between modern-day science and the mysteries of an ancient artifact. 

In a 2021 paper,researchers found that previously discovered and regularly spaced holes in a "calendar ring"were marked to describe the "motions of the sun,moon,and all five planets known in ancient Greeks and how they were displayed at the front as an ancient Greek universe. "Now,in a new study published in the Official Journal of the British Horological Institute,University of Glasgow gravitational wave researcher Graham Woan and research associate Joseph Bayley suggest that the ring was likely perforated (打孔)with 354 holes, which happens to be the number of days in a lunar year. 

The team used statistical models derived from gravitational wave research,a large-scale physics experiment designed to measure ripples in spacetime millions of light-years from Earth and Bayesian analysis,a technique using probability to quantify uncertainty based on incomplete data,to calculate the likely number of holes in the mechanism using the positions of the surviving holes and the placement of the ring's surviving six fragments. 

Surprisingly,the inspiration for the study came from a YouTuber Chris Budiselic,who has been attempting to physically recreate the ancient mechanism and investigating ways to determine just how many holes it contained. 

"It's a neat symmetry that we've adapted techniques we use to study the universe today to understand more about a mechanism that helped people keep track of the heavens nearly two millennia ago,"Woan said. 

"We hope that our findings about the Antikythera mechanism,although less supernaturally spectacular than those made by Indiana Jones,will help deepen our understanding of how this remarkable device was made and used by the Greeks,"Woan sadded.