A billionaire has recently made one of the biggest charitable（慈善的）donations to a university in China's history. Chen Tianqiao donated $115 million to the California Institute of Technology (Caltech) to help advanced brain research. The donation will be spent deepening the understanding of how the brain works. Chen has been interested in brain research, believing it can shape the industries such as artificial intelligence and virtual reality. However, this huge donation has caused heated discussions among Chinese scholars and internet users alike.

    Many criticized him for choosing to give money to a foreign university rather than home institutes for brain research, which are developing fast and are on track to catch up with the US in just a few years. Rao Yi, a biologist at Peking University, even said the donation was a typical mistake.

    Others, however, support his choice. They believe Caltech is a more reasonable choice compared with Chinese research institutions. Caltech has a long history and has taken a leading position in biology, and therefore it produces more efficient results. In addition, the results of the research benefit not only the American people, but also the rest of the world.

    A similar controversial case started two years ago when Pan Shiyi, chairman of SOHO China, donated $15 million to Harvard University to help disadvantaged Chinese students.

    Many believe that China is still behind in the management and use of donated money, and that as a result, Chinese charity donators are looking abroad. In comparison, Western countries like the US, which have a long history of donating money, have well-developed systems that use money efficiently. They can also provide full access for donors who want to track the use of the money. To get more donations, Chinese universities should be braver and more honest. They need self-reflection, rather than envy.

    When I was a little girl, I remember that when my dad was repairing something, he would ask me to hold the hammer, so we would have time for a conversation with each other. I never saw my dad drinking or taking a night out. All he did after work was taking care of his family.

    I grew up and left home for college and since then, my dad had been calling me every Sunday morning. And when I bought a house several years later, my dad painted it by himself in the fierce summer heat. All he asked was to talk to him, but I was too busy in those days.

    Four years ago, my dad visited me. He spent many hours putting together a swing for my daughter. He asked me to have a talk with him, but I had to prepare for a trip that weekend.

    One Sunday morning we had a telephone talk as usual. I noticed that my dad had forgotten some things that we discussed lately. I was in a hurry, so our conversation was short. Several hours later that day I received a call. My father was in the hospital. Immediately I bought a plane ticket and on my way I was thinking about all the occasions I missed to have a talk with my dad. By the time I arrived at the hospital, my father had passed away. Now it was he who did not have time for a conversation with me. I realized how little I knew about my dad, his deepest thoughts and his dreams.

    After his death I learned much more about him and even more about myself. All he ever wanted was my time. And now he has all my attention every single day.

    Have you ever realized that the smallest countries in the world have so much to offer? Whether it's historic and cultural heritage or unspoiled nature, these microstates are worth a visit.

    Grenada

    Grenada is a small country in the world. It is located on island of Caribbean, which is also known as The Island of Spice for several spices like cinnamon, ginger and rare nutmeg. Grenada relies on tourism. Its pristine beaches, warm turquoise water and unspoiled nature make it a wonderful holiday destination. Recently ecotourism has been growing as well.

    San Marino

    Located within Italy and surrounded by the Apennine Mountains. San Marino is visited by approximately 2 million tourists annually. It's a beautiful country, which also claims to be the oldest surviving state in the world! Therefore its cultural and historic heritage is undoubtedly fascinating. Although very small, the microstate has a lot of architectural attractions as well as the Romagna, which is loved by Italians, who are among the main guests here.

    Maldives

    Maldives is located on the bank of Indian Ocean. Maldives has a range of different habitats including deep sea, shallow coast, and reef ecosystems, fringing mangroves, wetlands and dry lands. Visitors to the Maldives do not need to apply for a pre-arrival visa, regardless of their country of origin, provided they have a valid passport, proof of onward travel, and the money to be self-sufficient while in the country.

    Andorra

    It's a picturesque microstate found in the Pyrenees Mountains, bordering Spain and France. Over 10 million tourists visit Andorra every year! Unlike the neighboring countries' high prices, the country has a duty-free policy, allowing shoppers to enjoy lower costs. Also there are winter and summer resorts, so you can visit anytime.

    I've come back to check on a baby. Just after dusk I'm in a car down a muddy road in the rain, past rows of shackled (戴镣的) elephants, their trunks swinging. I was here five hours before, when the sun was high and hot and tourists were on elephants' backs.

    Walking now, I can hardly see the path with my phone's flashlight. When the wooden fence post stops me short, I point my light down and follow a current of rainwater across the floor until it washes up against three large, gray feet. A fourth foot twisted above the surface, tied tightly by a short chain and choked by ring of metal spikes (尖刺). When the elephant gets tired and puts her foot down, the spikes press deeper into her ankle.

    Meena is four years and two months old, still a child as elephants go. Khammon Kongkhaw, her caretaker, told me earlier that Meena wears the spiked chain because she tends to kick. Kongkhaw has been responsible for Meena here at Maetaman Elephant Adventure, near Chiang Mai, in northern Thailand, since she was 11 months old. He said he keeps her on the spiked chain only during the day and takes it off at night. But it's night now.

    I ask Jin Laoshen, the Maetaman worker, why her chain is still on. He says he doesn't know.

    Maetaman is one of many animal attractions in and around tourist-crowded Chiang Mai. Meena's life is set to follow the same track as many of the roughly 3,800 captive (被捕获的) elephants in Thailand. When Meena is too old or sick to give rides—maybe at 55, maybe at 75, she'll die. If she's lucky, she'll get a few years of retirement. She'll spend most of her life on a chain.

    It's difficult to know the exact answer to whether babies dream and what they dream about. However, sleep experts have shown that newborns dream the most in the first two weeks after birth. Babies spend most of their sleeping time in REM(rapid eye movement) stage. As dreaming takes place in a light state of sleep, newborns tend to wake up due to noises, movements and other factors. When dreaming, newborns make a few noises and their eyes move. They may move around the sides or up and down. They may laugh, scream, or cry during the REM sleep. Also, their facial muscles, hands, and legs move, due to which they may wake up. So wrapping a baby in swaddling(裹紧的) clothes can keep the baby's body from moving and help them sleep better. As babies grow, their body movement decreases when dreaming.

    Studies say that the brain activity associated with dreaming is essential for the babies' mental development. During the REM stage, the flow of blood to the brain increases. As a result, certain nerve proteins are produced, which are the building units of the brain. Babies get stimulation from what they see, hear, or feel. The brain processes the information acquired while awake, and stores what is essential to the individual. A study concludes that babies learned while they were dreaming.

    What's the time for babies to start dreaming? Researchers say that before birth, babies start experiencing REM sleep around week 25, and so they may start dreaming at the point. On the contrary, some psychologists believe that children start having dreams when they are about 5 years old. At that age, they start becoming aware of themselves and begin to understand the things around them, which is what dreams are actually made of.

There has been tremendous concern recently over misinformation on social media. This concern is quite justifiable, as the consequences of believing false information are greatly affecting the individual and collective health.

Many people tend to fall for misinformation they encounter online. There is one influential explanation for this phenomenon. As the thinking goes, someone, who possesses very limited skills in finding and consuming digital content, creating digital content, and communicating it, is likely to have difficulty recognizing false information and thus is more vulnerable to believing false information. As a result, these less digitally literate people may play a significant part in the spread of misinformation.

This argument sounds perfectly plausible. Yet very little research has actually investigated the link between digital literacy and the vulnerability to believing false information. There's even less understanding of the potential link between digital literacy and what people share on social media. A group of MIT researchers explored these potential associations by surveying 1,341 Americans.

In the experiment, the researchers first showed the participants two dozen news headlines about politics, half of which were accurate, and half of which were false. In the second phase, they included a series of tests: having the participants report their familiarity with various Internet-related terms and answer questions about how social media platforms decide what to show in their newsfeeds. At last, the participants were required to assess the accuracy of a set of headlines and point out their likelihood of sharing each headline on social media.

The researchers found "clear evidence" that digital literacy was a strong predictor of accuracy discernment (识别能力). However, the results were "strikingly different" regarding sharing discernment. Digitally literate subjects were just as likely to share inaccurate information. Most surprisingly, even people with high digital literacy were not immune from clicking "share" for false news.

This sounds odd. Although most people don't want to spread misinformation, social media is distracting: people are scrolling quickly, and their attention is drawn to social validation (社会认知度), such as how many likes their posts will get. So make sure a certain post is accurate before you click the "share" button.