The universe looks like a pretty quiet place to live. But the universe is filled with dangerous things, all struggling to be the one to wipe us off the planet. Happily for us, they're all pretty unlikely, but if you wait long enough, one of them is certain to get us. But which one?

1). Death by Asteroid (小行星)

    Of all the ways we might meet our untimely death, getting wiped out by an asteroid is the most likely. Why? Because we sit in a universal shooting gallery, with 100 tons of material hitting us every day. The problem, though, occurs every few centuries when something big this way comes. If you could ask a dinosaur, I'd imagine they would tell you to take this seriously.

2). Death by Exploding Star

    When a huge star ends its life, it does so with a bang, which sends death spreading across space in the form of high-energy radiation. Many studies show that the bang would have to be closer than about 75 light years to do us any harm. The good news: no stars so close are able to do the deed.

3). Death by Dying Sun

    The sun is important to us; without it, we'd freeze. But the sun is also middle-aged, already halfway to running out of fuel, expanding into a red giant, and cooking us to a fine crisp. Even long before then, it'll warm up enough to raise our average temperature and cause a runaway greenhouse effect, boiling our oceans. Happily, that's a long time from now.

4). Death by Black Hole

    Black holes are misunderstood. They don't wander the galaxy looking for tasty snacks in the form of planets and stars; they turn around the Milky Way just like the hundreds of billions of other stars do. But it's possible that one could wander too close to us. If it did, planetary paths would be disturbed, causing the Earth to drop into the sun or be thrown out into deep space.

    Given that it could be trillions of years or more before even that happens, we don't have to worry too much about black holes.

    My advice? Go outside, look up, enjoy the sun, the moon, and the stars. They may be there forever as far as any one of us is concerned...and forever is a long, long time.

    People aren't walking any more-if they can figure out a way to avoid it.

    I felt superior about this matter until the other day I took my car to mail a small parcel. The journey is a matter of 281 steps. But I used the car. And I wasn't in any hurry, either. I had merely become one more victim of a national sickness: motorosis.

    It is an illness to which T had thought myself immune(免疫的), for I was bred in the tradition of going to places on my own two legs. At that time, we regarded 25 miles as a good day's walk and the ability to cover such a distance in ten hours as a sign of strength and skill. It did not occur to us that walking was a hardship. And the effect was lasting. When I was 45 years old I raced—and beat-a teenage football player the 168 steps up the Statue of Liberty.

    Such enterprises today are regarded by many middle-aged persons as bad for the heart. But a well-known British physician, Sir Adolphe Abrahams, pointed out recently that hearts and bodies need proper exercise. A person who avoids exercise is more likely to have illness than one who exercises regularly. And walking is an ideal form of exercise-the most familiar and natural of all.

    It was Henry Thoreau who showed mankind the richness of going on foot. The man walking can learn the trees, flowers, insects, birds and animals, the significance of seasons, the very feel of himself as a living creature in a living world. He cannot learn in a car.

    The car is convenient means of transport, but we have made it our way of life. Many people don't dare to approach Nature any more; to them the world they were born to enjoy is all threat. To them security is a steel river thundering on a concrete (混凝土) road. And much of their thinking takes place while waiting for the traffic to turn green.

    I say that the green of forests is the mind's best light. And none but the man on foot can evaluate what is basic and everlasting.

    What's your favorite type of music? Most people may prefer rock and roll, pop or jazz. These types are most publicized by television and the radio. Country music now would seem to mistakenly belong to the category of rock or pop. Publicity of this category started to drop only after the year 2000; however, it did have its peak years just before falling down.

    What people may not know is that this type of music inspired(促成) rock and roll especially with one of the most important figures in music history-Elvis Presley-who is known as the 6/King of Rock and Roll". Elvis used to be very famous at a radio program which broadcast country music back in the late 1940- s.  Country music is influenced by jazz and blues. Rock music is also influenced by jazz and blues so that they may even seem similar.

    Nowadays, country music is closely related to pop music due to artists' preference and popular demand. Starting from the 1980's it slowly divided itself into New and Old Country Music. Legends like Johnny Cash began to slip away because the new understanding of country music actually contains pop and his music just doesn't fit the category. Fortunately, country music is still heavily promoted through websites and reviews.

    Certain types of music nowadays are linked with different age groups. Classical for the people in the mid 19th century, pop in the 1920's, and then there's country music.

    All these types continue to grow and modernize while still appealing to certain age groups. More modern country music compositions tend to become different in their own ways which makes it even harder to identify them as country music while they, again, remain appealing only to certain age groups. Active promoters of country music videos, however, seem to appeal to a large number of age groups especially those active in Australia, for as long as country music isn't mixed with other types, it will eventually regain its charm as music for all ages.

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    LEGO(乐高) recently announced that they will start producing pieces from sustainable (可持续的) sugar cane. The toys, which will be closely similar to classic ones, will also feature "botanical elements" like leaves, bushes, and trees.

    The pieces will be included in LEGO'S box sets from this year onwards. The move is part of the Danish company's campaign to use sustainable materials in its products by 2030.

    However, Tim Brooks, the firm's vice-president, said, "We want to make a positive influence on the world around us, and are working hard to make great play products for children using sustainable materials. This is a great first step in our goal to make all LEGO pieces using sustainable materials."

    The new line of production has reportedly already started with pieces being produced from polyethylene, which is a soft and durable plastic (耐用的塑料). LEGO says that we needn't worry about the quality of the new products, as they've tested the plant-based plastic to ensure that it meets the high standards for quality and safety that consumers (消费者) expect from the company.

    "LEGO products have always been about providing high quality play experiences and giving every child the chance to shape their own world through inventive play. Children and parents will not notice any difference in the quality or appearance of the new pieces, because plant-based polyethylene has the same qualities as traditional polyethylene," said Tim Brooks.

    "It is important that companies in each industry find ways to help ensure a future where people, nature, and the economy grow healthily," said Alix Grabowski, an officer at WWF. "The LEGO Group's decision to use sustainable plastics represents a great opportunity to reduce dependence on finite (有限的) resources, and their work with the Bioplastic Feedstock Alliance will allow them to connect with other companies to continue to think creatively about sustainability."

If you are a psychology enthusiast, you have probably heard of the famous marshmallow (棉花糖) test. In this task, kids are given a single treat, such as a marshmallow, and are told that they can eat that marshmallow now, or they can wait a little while, and have two marshmallows instead.

Some kids eat the marshmallow immediately, but most try their best to wait for the experimenter to come back with two marshmallows.

Wait times in the marshmallow test came to be seen as indicators of self-control. But what if the behavior in the marshmallow test has more to do with cultural norms (准则) than self-control? A 2022 study by Yanaoka tested the idea that children may decide how long to wait for rewards based on what they are accustomed to waiting for in their culture. In the United States (with some exceptions), there is no widespread custom of waiting until everyone is served to eat your food. However, in Japan, there is a mealtime custom of waiting until everyone has been served before anyone digs in.

Because of this difference in norms, the researchers assumed that Japanese children would wait longer in the marshmallow test than the American children. This is exactly what they found. The researchers did a clever follow-up experiment. They found one field where children in the U.S. are accustomed to waiting longer than Japanese children are: Opening presents. In the U.S., gifts are usually given on special occasions, such as birthdays and Christmas. On these occasions, children usually have to wait before they can open their presents. In Japan, however, gift-giving happens more often, and children usually open presents immediately.

Given these cultural differences, Yanaoka expected that if they ran the marshmallow test with Japanese and American kids, but they replaced marshmallows with packaged gifts, then American kids would wait longer to open them. Once again, their assumption was correct. When the potential rewards were packaged gifts instead of food, American children waited 15 minutes on average, and Japanese children waited about four minutes on average.

This is a powerful result because it demonstrates the importance of culture and habit in shaping behavior. If a child waits only four minutes before giving up on two marshmallows but then waits almost four times longer to open a gift, can we really say that that child lacks self-control? I don't think so.