If you watch British television on Friday March 15,you might be surprised to see celebrities wearing funny red noses and joking around. But don't worry. They're not mad. It's all part of a biannual fund-raising event called Red Nose Day.

    Organized by the charity Comic Relief, founded in 1985 by two British comedians, the aim of the event it is to raise money to fight poverty and injustice in the UK and Africa. Celebrities and public figures support the event by making appearances on comic TV shows broadcast by the BBC. This year, for example, UK Prime Minister David Cameron appeared in a music video by One Direction, which the band produced for the event.

    But Britons don't just raise money for charitable causes on one day a year. They do it all year round. One way of doing so is-by shopping in charity shops. These small, inconspicuous shops sell clothes, books and household goods just like any other shop But there's one big difference—everthing sold in the shops is second-hand.

    There are nearly 10,000 charity shops in the UK, according to the Charity Retail Association. Their business model is simple: Anybody who has things they don't want anymore can donate them to a charity shop, where they are checked for damage, cleaned and priced. Most items go back on sale at a small part of their original price and the money that is made by selling them is used for a charitable cause.

    The idea of buying used clothes may sound off-putting, but for shoppers who have less spending money, such as the elderly or those in low-paying jobs, it has been a welcome option for years. Now, shopping at charity shops is also becoming popular with young people looking for alternative fashion." You can find very unique clothes for a very cheap price. It doesn't bother me that other people may have worn them. I simply wash them before I wear them," said Anne Marie, a 19-year-old Internet user from the US, in a comment on a Yahoo forum.

    So next time you spot a charity shop, why not go inside? Who knows, you might find a lovely dress for just a few pounds. Even better, you can enjoy wearing it in the knowledge that your money helped a good cause.

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Reader's Travel Photography Competition

    This month's images include some original and brilliant shots. The overall 2018 winner will receive a $200 holiday ticket and go on a 16-night wildlife holiday.

    In our annual Readers' Choice Awards survey, we asked our readers to rate their favorite cities in the world for arts and culture. These cities are centers of music and dance, museums, and theaters. Here are four of them where you can find inspiration in the arts, starting with the top spot.

    Rome, Italy

    At its peak, the Roman Empire extended over nearly two million square miles of land across Europe, Asia Minor and North Africa. Today, that history is on display everywhere. The city's main attractions are famous not because of tourist advertisements, but because they are really so impressive. No wonder it's known as the Eternal City: You could spend forever here and find new artistic and cultural treasures every day.

    Paris, France

    Hemingway famously called Paris "a moveable feast", but wherever you go while in the city, there is always something to see, hear, taste or feel. With some 150 museums, Paris doubles as an art history class, offering the very best of the discipline across centuries and styles.

    London, United Kingdom

    London is inspiration and setting for the rise of Shakespeare, Dickens, Orwell and Eliot and the breeding ground for all those iconic (标志性的) bands: The Kinks, The Clash and The Stones. London is also Banksy's favorite canvas, home to more than 1,000 galleries, and the kind of place where you can spend a whole day in a single museum and still be ready for more when it opens the next morning.

    Vienna, Austria

    As we all know, Western music would be unrecognizable without Austria's capital, which nurtured many famous musicians. It's also the site of the Vienna Secession, a revolutionary art movement founded in 1897 by Gustav Klimt. Visitors today can see the fruits of all that creativity in the city's 100 – odd museums.

The age of technology is a great and convenient thing, but it does have effects on us in many different ways.

It causes long-term memory loss. Thanks to Baidu, we don't really have to remember much of anything. Questions are answered at the drop of a hat because Baidu is all-knowing! Is that a good thing, though? People aren't digging through their brains anymore to find answers. Here's the good news: we can still exercise our long-term memory by simply thinking before we Baidu. If we don't want to go down that road, we can search Baidu for some memory games to play. Turn Baidu into an asset instead of an enemy.

It makes us lack patience. Baidu gives us what we want. Everything is instant. In fact, if we have to wait for even a handful of minutes for anything, we start losing our minds. This idea of instant satisfaction carries through to many other aspects of our lives, too, like when we go out to eat, drive in traffic, or even deal with workplace accidents. Instead of using Baidu to lessen our anger, try searching for some mindful meditations (沉思).Focus on our breath and realize everything doesn't have to move at lightening speed. We can actually listen to some peaceful spa or meditation music on our Pandora, too!

It wastes our time. Be honest, how much time are we spending on Baidu every day? Whether we're doing research for our own personal needs, buying clothing, or writing a research paper, we all spend a ton of time on the trusty Internet. Are we always being efficient with this time? For the sake of our precious time, if we haven't used Baidu Drive, we should. Keep spreadsheets, text does, PDFs, slideshows, and even recordings exactly where we can easily find them. Keep a running list of websites we know we'll revisit.

Overall, things are different these days. Yes, there are noticeable negative side effects because of the Baidu invasion, but we don't have to fall into that trap. Stay sharp and don't let ourselves become imprisoned doing the Baidu god's bidding.

D

With the completion of the Human Genome（基因组）Project more than 20 years ago, and the discovery of the double helix structure of DNA enjoying its 70th birthday last year, you might assume that we know how life works. Think again!

Evolution has a 4bn-year head start on us. However, several aspects of the standard picture of how life works-the idea of the genome as a blueprint, of genes as instructions for building an organism, of proteins as precisely tailored molecular（分子）machines and more-have wildly reduced the complexity of life. 

In the excellent book How Life Works, Philip Ball explorers the new biology, revealing life to be a far richer, more delicate affair than we have understood. Ball explains that life is a system of many levels-genes, proteins, cells, tissues, and body modules-each with its own rules and principles, so there is no unique place to look for an answer to it. 

Also, How Life Works is a much more appealing title than the overused question of "What is life?". We should be less concerned with what a thing is, and rather more focused on what a thing does. Defining a living thing implies an unchangeable ideal type, but this will run counter to the Darwinian principle that living things are four-dimensional, ever changing in time as well as space.

But it's an idea that is deeply rooted within our culture. Ball points out that we rely on metaphors（比喻）to explain and explore the complexities of life, but none suffice. We are taught that cells are machines, though no machine we have invented behaves like the simplest cell; that DNA is a code or a blueprint, though it is neither; that the brain is a computer, though no computer behaves like a brain at all.

Ball is a terrific writer, pumping out books on incredibly diverse subjects. There's a wealth of well-researched information in here, and some details that are a bit chewy for the lay reader. But the book serves as an essential introduction on our never-ending quest to understand life.

  A Tale of Highly Unusual Magic

Genre: Fantasy

Number of Pages: 320

What's the basic story line?

Kai and Leila have never met, but their seemingly dull lives will be drawn together in unbelievable ways. Each girl is vacationing—Kai in Texas and Leila in Pakistan. Each girl finds a copy of a book called The Exquisite Corpse. Each book is blank, but when Kai writes a sentence, the book magically begins a story. When either girl writes another phrase, the book shows more. Whatever the girls are doing when they write—getting attacked by a dog, hunting for a rare species, accidentally buying a goat—helps to develop the plot of The Exquisite Corpse. It also makes reading A Tale of Highly Unusual Magic even more enjoyable.

Are the characters believable? Many aspects of the characters are realistic. Readers see that the characters, like all of us, can sometimes fail. Also, both characters have some unflattering (不讨人喜欢的) qualities, even though they're represented as "the good guys" in the story.

Who would like this book? Any lover of fantasy and stories about magic would enjoy this book. Readers who enjoy knowing things the characters don't, or who like being shocked by a huge plot twist (曲折的情节),will like this book.

On a scale of 1 to 10, how would you rate this book? I would rate A Tale of Highly Unusual Magic a perfect 10, because of the creative story idea and the crazy plot twists that keep the reader turning page after page. I, for one, did not want the story to end.