If you want to visit only the sights that you think are most interesting, you should definitely book one of the many private tours in NYC.

Landmark Private New York Tours

     The best way to make the most of your visit to the top NYC landmarks is to use one of the private tours in NYC.

     NY See It All: From traveling through Manhattan to getting onto a boat to visit Ellis Island and the Statue of Liberty, this private NYC tour delivers superiors service. Customize（定制） your stops and see why this tour is one of the best private tours in NYC.

     NY Limo Tour: After choosing what you want to see, this private tour in NYC lets you write the route of your day. Whether you want to see historical NYC sights, movie sights, or cultural sights, it will help make your visit memorable.

     Aerial Landmark Tour: This is a fun and exciting way to explore New York City. On this 20-minute helicopter tour, you'll see the very best landmarks in Manhattan and the Bronx. Family-Friendly Private New York Tours

     NYC isn't just a playground of adults; these family-friendly private New York City tours are ideal for people traveling with kids.

Revolutionary Era Walking Tour: When you book this informative NYC walking tour, you and your kids will wander around Manhattan's Financial District and hear all about the American Revolution. With knowledgeable guides, your kids will love the tour too.

     Kids Greenwich Village Tour: This fun NYC walking tour is specifically created for children. You and your kids will visit some famous Greenwich Village sights, while the children, led by friendly guides, play games that relate to math, science, foreign language, and the arts.

                                                                       Balloon Volleyball

    It's a rainy, dark day and there's nothing to do. You don't feel like sitting quietly but you are not allowed to make a lot of noise. What can you do for fun? Try balloon volleyball.

    Items needed for this game: a balloon (or two, in case the first one bursts), some ropes, two chairs, at least two people and a room.

    Set up the room. If you're in the living room, or a family room, be sure to move all the furniture out of the way. Get two chairs and set them in the middle, outer edges(边缘)of the room. They should be at the same place where you put a volleyball net. Turn them so that the seat is facing the wall, not the “playing” space. Tie the rope onto the top of the chair, and run the rest of the rope to the other chair. Now tie it on this chair at the same place as the first chair. You can decide the “out-of-bounds”(出界) lines, if you want to have them, but they really are not necessary in this game.

    Blow up the balloon. Choose sides. You will play this game on your knees (at least until they start hurting and you want to stand). Each side must get the balloon over the rope in three hits. If it does not get over, the other side gets the balloon and a point. This game becomes more difficult because you must play without talking.

    You can also add other rules to make it more difficult; for example, you can only use your left hand or only your right hand to hit the balloon.

    Continue playing until one side gets 10 points. You can make your game longer or shorter by changing the number of points it takes to win.

    This is a fun way to get your energy out, have fun, and not make too much noise on a rainy, stay-in-the-house day.

    The vast majority of green sea turtles in the northern Great Barrier Reef are female because of warmer temperatures due to climate change, which influences their sex, researchers said. Scientists are concerned populations of these animals could turn almost completely female.

    A recent study by the National Oceanic and Atmospheric Administration, California State University and Worldwide Fund for Nature Australia examined two genetically distinct populations of green sea turtles living in the Great Barrier Reef. The study found that a group of about 200,000 turtles living in the northern part of the reef was almost entirely female. While the southern population was 65 to 69 percent female, females in the northern group accounted for 99.1 percent of young turtles and 86.8 percent of adults.

    After combining their results with temperature data, the scientists found that most sea turtle populations are living above the most suitable temperature. The northern green turtles have been producing mainly females for more than two decades and that the complete feminization of this population is possible in the near future, making it clear that climate change is threatening the survival of these populations.

    Dermot O'Gorman, the chief executive of World Wildlife Fund Australia, said, “That's a very visible sign of the impact of climate change. But this is a quiet change.”

    O'Gorman said more urgent action on climate change is clearly needed, adding that some conservationists have already taken practical measures, such as using shade cloth on turtle nesting beaches to lower the sand temperature, and reducing by catch in the fishing industry.

    “Shade cloth can be used in certain places, but there's a limit to the scale you can do that,” he said, “Now every large male who can reproduce is going to be even more important.”

    Let me tell you, Johnson, this is going to be the biggest development in animal-imitative cybernetics (动物模仿控制学) since Hayes pioneered the field way back in 2014. Everybody's going to want a piece of my discovery! Everyone! Even United States of Earth Defense! I'm going to be the richest man alive!

    I can see you don't share my excitement yet. Just wait, old friend. Accompany me to my lab, and we will see who has the last laugh. You'll be begging me to take you on as a lab assistant after I...Oh, here we are. You first, my good man. You see, I had already come up with the perfect cybernetic engine, able to copy any life form. The question was, which creature would be the best show of my discovery? I've used a life form nobody's considered for cybernetics. It is powerful, graceful, intelligent, and best of all people love it. I chose the tiger!

    Go on, have a glance! Ha! Don't look so shocked, Johnson. I leave it powered down when I'm not testing it. It is rather great, though. Yes, all the latest technology, including claws (爪) I had made from vanadium alloy (合金). It cuts through steel like its wet cardboard. The process that I used to get its mind in the computer will be enough to ensure me fame and fortune.

    Huh? It did move, didn't it? I guess I left it on yesterday. No, don't look so nervous; I can shut off its main power with this remote (遥控器) right here. Nothing to worry about. I really don't think it's regarding you as a meal. Be reasonable, old...Oh, God! Johnson! The remote, where is it? Where?!

    Ah, there we go! Too late to save Johnson, though. What a pity. Better safe than sorry. There! God, what a mess. Even worse, I can't call the police now; the bad publicity would overshadow my breakthrough, and certainly frighten the investors. I've got to get rid of the body secretly, somehow. I could bury it, but I might be seen. I could burn it, but the smoke would be very doubtful. What to do?

    What to...

    I wonder...How fast can this cat eat?

    Astronomers have taken the first ever image of a black hole, which is located in a distant galaxy (星系).The black hole is 500 million trillion km away and was photographed by a network of eight telescopes across the world. It was captured by the Event Horizon Telescope (EHT).

    The announcement was made in Washington, Brussels, Santiago, Shanghai, Taipei and Tokyo. Details have been published today in Astrophysical Journal Letters.

    Prof Heino Falckc, of Radboud University in the Netherlands, who suggested the experiment, told BBC News that the black hole was found in a galaxy called M87. "What we see is larger than the size of our entire Solar System," he said. "It has a mass 6.5 billion times that of the Sun. And it is one of the heaviest black holes that we think exists. It is an absolute monster, the heavyweight champion of black holes in the Universe."

    The image shows an intensely bright "ring of fire", as Prof Falckc describes it, surrounding a perfectly circular dark hole. The bright halo is caused by very heated gas falling into the hole. The light is brighter than all the billions of other stars in the galaxy combined - which is why it can be seen at such distance from Earth. The edge of the dark circle at the center is the point at which the gas enters the black hole, which is an object that has such a large gravitational pull (万有引 力）,not even light can escape.

    "It is remarkable that the image we observe is so similar to that which we get from our theoretical calculations. So far, it looks like Einstein is correct once again." said Dr Ziri Younsi, of University College London -who is part of the EHT cooperation.

    Chinese scientists were involved in the observation through a telescope in Hawaii. They were also highly involved in follow-up data processing and theoretical analysis, said Shen Zhiqiang, head of the Chinese Academy of Sciences' Shanhai Astronomical Observatory and a member of the EHT international team.

    Shanghai and Taipei were selected as two of the cities to hold news conferences, together with Washington, Brussels, Santiago and Tokyo, a recognition of China's contribution.

    "In the fields of astronomy, radio astronomy, and space astrophysics, China has made a significant contribution to this global project," Falcke said.

Hamlet, the prince of Denmark, has come back from university to find that his father, the old king, is dead. His mother has married his father's brother, Claudius, who is now king of Denmark. Hamlet is shocked that his mother has married so soon after his father's death, and angry that she has married Claudius.

Soon, a ghost (幽灵) is seen walking on the castle walls. The ghost looks like Hamlet's father, the dead king. When Hamlet sees the ghost, he is told that it is the ghost of his father. "I am your father's spirit," the ghost tells Hamlet. It tells him that Hamlet's father did not die naturally, but was murdered by his brother Claudius. As the king slept, Claudius put poison into his ear, causing the king a painful death. The ghost tells Hamlet to take revenge on Claudius for murdering his father.

Hamlet can't believe his mother would marry the man who murdered her husband. He becomes depressed, and he thinks about killing himself: "To be or not to be, that is the question. " Hamlet decides to pretend he is mad while he tries to find out if King Claudius really killed his father. Claudius soon notices that Hamlet is acting strangely, so he asks Polonius, his adviser, to discover if it is true…