On 20th July 1969, millions of people saw Neil Armstrong take his first steps in space on television. Armstrong got out of the spacecraft Apollo 11, touched the ground of the moon and said, “That's one small step for man, one giant leap for mankind.”

    A conspiracy(阴谋)theory has existed since the night of his lunar handing. Armstrong's achievements were considered amazing, but people wondered if it really happened. Many people believe that the scene on the moon wasn't real. Rumours spread throughout coffee shops, street comers, and newspapers, but it soon died down.

    But theories resurfaced in 2001 Suspicion began when an American television network aired a program called Conspiracy Theory: Did We Land on the Moon? The show argued that NASA did not have the money for such a voyage, and that the whole scene was probably filmed in a movie studio. Many critics say that there were no stars in the background during the lunar landing, so it must have been a fake. They also point out that the American flag that was posted was waving. How could that be if there is no wind on the moon?

    NASA(National Aeronautics and Space Administration)has denied these rumours many times. They explained that now photographers can capture the brightness of the astronauts with the dimness of the stars behind them. Also, they said that the flag was waving because the astronauts were pulling it back and forth trying to get it deeper into the rock. NASA also points out that the television program fails to mention that Armstrong and his team brought back 800 pounds of rock from the moon.

    Nell Armstrong is seen as a national icon in the US and his lunar landing is one of the most historic events in the country's history. But either way, this conspiracy theory still exists today.

    You can tell a lot about a country from its passport. Color is the first give-away. Nations tend to pick colors that reflect their national character. New Zealand decorates its famous rugby team, its airline and its passports in the nation's favorite color—black. Many Islamic countries have green passports because of the importance of the color in the Muslim faith.

    But as well as a statement of national identity, color can show international cooperation. The British passport was originally a navy blue. But after Britain joined the European Union in 1973, it switched to burgundy red（酒红色）like other EU countries. The common color was supposed to make European passports instantly recognizable.

    But since colors can't be patented（专利）, nothing stops others with the same idea. A number of countries that long to join the EU have changed their passports to burgundy too. Meanwhile Britain has decided to leave the club. Its government has announced that the UK passports will return to navy blue after Breit（脱欧）.

    If you have a passport from Singapore or South Korea, you are in possession of one of the most powe3rful travel documents on earth. Passport power is measured by the number of countries the holder can access visa-free. Currently sharing first place in the power rankings, Singaporean and South Korean passports provide visa-free access to 162 countries each. British passport holders share fourth place in the power ranking with six other nations, each accessing 159 countries visa-free. Americans ranked fifth with access to 158. Somalia, Syria, Pakistan and Iraq are among the world's least powerful passports. Afghanistan is the lowest ranking of all, with visa0free access to just 26 countries.

    Having to get a visa is not a piece of cake. First there is the never-ending form. Then there are lengthy appointments and expensive fees. Some visas also require travelers to pre-booked flights to prove that they intend to return home.

    But there are unexpected advantages to some of the world's weaker passports. Middle-ranking Namibia is one of just a handful of countries, whose citizens can enter Angola visa-free. India is one of only three countries, whose citizens have visa-free access to Bhutan.

    A low-ranking passport limits your choices, but not your sense of adventure.

    Did you know that the color of uniforms（制服）can influence the performance of an athlete？ It may sound strange, but a study suggests this might be true.

    Two British scientists studied the results of four spots in the 2004 Athens Olympic Games where the athletes had been given either a red or a blue uniform. They discovered that when there was a big difference in the score, color had no influence on the result . But if it was a close match, the athlete in a red uniform was more likely to win. Then they looked at the uniforms of the soccer teams at the Euro 2004 tournament. Again, teams wearing red won more games.

    The two scientists got their idea from earlier studies of wild animals. It had been discovered that when a male（雄性）shows red on its body, it sends a signal（信号）of its power and strength. For example, in many kinds of monkey, the more the male shows off its red scars（伤疤），the more females it can attract.

    Based on this fact, the British scientists thought that the idea might work for humans, too. According to them, when an athlete sees a competitor in a red uniform, he gets a feeling that his competitor could be stronger than him. And that kind of feeling may have a bad influence on the player's performance in the actual game.

    Although the idea is interesting, most people don't accept that color signals in the animal world can really be useful to humans in sports. They think that it is unreasonable to develop an idea based on such a small number of examples. Much more research has to be done to prove the influence of uniform colors on the performance of athletes.

    Societies all over the world name places in similar ways. Quite often there is no official naming ceremony but places tend to be called names as points of reference by people. Then an organized body steps in and gives the place a name. Frequently it happens that a place has two names: One is named by the people and the other by the government. As in many areas, old habits died hard, and the place continues to be called by its unofficial name long after the meaning is lost.

Many roads and places in Singapore(新加坡) are named in order that the pioneers will be remembered by future generations. Thus we have names such as Stamford Road and Raffles Place. This is in keeping with traditions in many countries — in both the West and the East.

Another way of naming places is naming them after other places. Perhaps they were named to promote friendships between the two places or it could be that the people who used to live there were originally from the places that the roads were named after. The mystery is clearer when we see some of the roads named in former British bases. If you step into Selector Airbase you will see Piccadilly Circus — obviously named by some homesick Royal Air Force personnel.

    Some places were named after the activities that used to go on at those places. Bras Basah Road is an interesting example, "Base Basah" means "wet rice" in Malay(马来语). Now why would anyone want to name a road "Wet Rice Road"? The reason is simple. During the pioneering days, wet rice was laid out to dry along this road.

    A few roads in Singapore are named by their shapes. There is "Circular Road" for one. Other roads may have part of their names to describe their shapes, like "Paya Lebar Crescent". This road is called a crescent (月牙) because it begins on the main road, makes a crescent and comes back to join the main road again.

    Whatsonstage.com is the UK's biggest and best online guide to the performing arts including theatre, opera, classical music, dance and so on.

    The Lion King

    Musical: The stage adaptation of the Disney film taken from an original African story. A young lion grows up and learns that taking over the pride requires wisdom and maturity(成熟).

    Place: Lyceum Theatre, Wellington Street, London

    Telephone: 0870 243 9000

    Date: Friday, 18 Nov. 2015

    Ticket price: ￡37.5

    Oliver

    Musical: Dickens' story of a boy in a London workhouse and his adventures on the way to discovering his family. The songs include Food glorious food, You've got to pick a pocket or two, Who will buy this wonderful morning, I am reviewing the situation and Consider yourself at home.

    Place: Theatre Royal, Catherine Street, London

    Telephone: 020 7494 5061

    Date: Thursday, 17 Nov. 2015

    Ticket price: ￡25,but now save 20%

    Jersey Boys

    Musical: It tells the story of Frankie Valli and the Four seasons: the blue-collar kids from New Jersey formed a singing group and became famous. The musical features many of the group's popular songs such as Big girls don't cry, Oh, what a night and Can't take my eyes off you.

    Place: Prince Edward Theatre, Old Compton Street, London

Telephone: 0870 850 9191 —

    Date: Saturday, 19 Nov. 2015

    Ticket price: ￡22.5

    Alls Well That Ends Well

    Play: A romantic story. Helena, daughter of a poor physician, loves Bertram, son of a Countess(女伯爵).

    Place: Shakespeare's Globe Theatre, Park Street, London

    Telephone: 020 7401 9919

    Date: Sunday, 20 Nov, 2015

    Ticket price: ￡40.5

Myopia, also known as nearsightedness, has become a lot more common in recent decades. Some even consider myopia an epidemic (流行病). But what causes myopia and what reduces it?

While having two myopic parents does mean you're more likely to be nearsighted, there's no single myopia gene. That means the causes of myopia are more behavioral than genetic.

Scientists have learned a great deal about the progression of myopia by studying visual development in baby chickens. They do so by putting little hats on baby chickens. Lenses (镜片) on the face of the hats cover the chicks' eyes and are adjusted to affect how much they see.

Just like in humans, if visual input is wrong, a chick's eyes grow too large, resulting in myopia. And it's progressive. Blur (模糊) leads to eye growth, which causes more blur, which makes the eye grow even larger, and so on.

Two recent studies featuring extensive surveys of children and their parents provide strong support for the idea that an important driver of the increase in myopia is that people are spending more time focusing on objects immediately in front of our eyes, whether a screen, a book or a drawing pad.

Other research has shown that this unnatural eye growth can be interrupted by sunlight. A 2022 study, for example, found that myopia rates were more than four times greater for children who didn't spend much time outdoors—say, once or twice a week—compared with those who were outside daily. At the same time, kids who spent more than three hours a day while not at school reading or looking at a screen close-up were four times more likely to have myopia than those who spent an hour or less doing so.

Fortunately, just a few minutes a day with glasses that correct blur stops the progression of myopia, which is why early vision testing and vision correction are important to limit the development of myopia.