On a stormy day last August, Tim heard some shouting. Looking out to the sea carefully, he saw a couple of kids in a rowboat were being pulled out to sea.

    Two 12-year-old boys, Christian and Jack, rowed out a boat to search for a football. Once they'd rowed beyond the calm waters, a beach umbrella tied to the boat caught the wind and pulled the boat into open water. The pair panicked and tried to row back to shore. But they were no match for it and the boat was out of control.

    Tim knew it would soon be swallowed by the waves.

    "Everything went quiet in my head," Tim recalls(回忆). "I was trying to figure out how to swim to the boys in a straight line."

    Tim took off his clothes and jumped into the water. Every 500 yards or so, he raised his head to judge his progress. "At one point, I considered turning back," he says. "I wondered if I was putting my life at risk." After 30 minutes of struggling, he was close enough to yell to the boys, "Take down the umbrella!"

    Christian made much effort to take down the umbrella. Then Tim was able to catch up and climb aboard the boat. He took over rowing, but the waves were almost too strong for him.

    "Let's aim for the pier(码头)," Jack said. Tim turned the boat toward it. Soon afterward, waves crashed over the boat, and it began to sink. "Can you guys swim?" he cried. "A little bit," the boys said.

    Once they were in the water, Tim decided it would be safer and faster for him to pull the boys toward the pier. Christian and Jack were wearing life jackets and floated on their backs. Tim swan toward land as water washed over the boys' faces.

    “Are we almost there?" they asked again and again. "Yes," Tim told them each time.

    After 30minutes, they reached the pier.

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    Imagine on your way out of class today you trip (绊倒) on a loose piece of carpet and twist your ankle. As a result of the injury, you lose your place in the local sports team, and have to miss an important job interview. Bad luck? Or an opportunity to get rich quick?

    Perhaps it's not surprising that Roslyn Darch of Houston, Texas, USA felt annoyed when she tripped over a toddler (学步的儿童) running around a furniture store, and broke her ankle. But a few months later, she was $780,000 richer after she successfully sued (起诉) the shop. The owners were clearly surprised at the size of Roslyn's payout, particularly since the toddler she tripped over was her own son.

    And it's not only claims for physical injuries that are keeping the lawyers busy. A group of overweight New York teenagers sued a giant fast-food company claiming that they had not had enough warning that a diet of burgers, fries and milk shakes would make them fat. The parents of one nineteen-year-old English schoolgirl successfully sued her school for 42,000 compensation when she failed to get a top grade in a university entrance exam. Sandra York received $113,000 from a Washington D.C. restaurant after slipping on a spilt soft drink.

    Who knows where it will end? Some say there should be penalties (处罚) for excessive (过度的) claims, or that there should be a limit on payouts. But one thing's for sure—in the end, the only certain winner is the lawyer!

    Some people think that success is only for those with talent or those who grow up in the right family, and others believe that success mostly comes down to luck. I'm not going to say luck, talent, and circumstances don't come into play because they do. Some people are born into the right family while others are born with great intelligence, and that's just the reality of how life is.

    However, to succeed in life, one first needs to set a goal and then gradually make it more practical. And, in addition to that, in order to get really good at something, one needs to spend at least 10,000 hours studying and practising. To become great at certain things, it'll require even more time, time that most people won't put in.

    This is a big reason why many successful people advise you to do something you love. If you don't enjoy what you do, it is going to feel like unbearable pain and will likely make you quit well before you ever become good at it.

    When you see people exhibiting some great skills or having achieved great success, you know that they have put in a huge part of their life to get there at a huge cost. It's sometimes easy to think they got lucky or they were born with some rare talent, but thinking that way does you no good, and there's a huge chance that you're wrong anyway.

    Whatever you do, if you want to become great at it, you need to work day in and day out, almost to the point of addiction, and over a long period of time. If you're not willing to put in the time and work, don't expect to receive any rewards. Consistent, hard work won't guarantee you the level of success you may want, but it will guarantee that you will become really good at whatever it is you put all that work into.

    Some people find visiting ordinary museums to be a bit dull. Fortunately for them, there are unusual museums to check out, such as underwater museums!

    How can you visit and what can you see?

    Many underwater museums are supported by companies that offer guided tours. A trained guide leads groups around a stunning underwater display of statues in each museum. Depending on the depth of the museum, visitors may be able to view the sculptures from a glass bottomed boat or by swimming on the surface. Other underwater museums are deeper and are most accessible to scuba divers.

    Why are the museums underwater?

    Underwater museums have many functions. One of their aims is to create a man-made reef environment where sea creatures can live. That's why some of the museums are located in areas that were damaged by hurricanes or are considered underwater ''deserts''. The statues in the museum are designed in a way that encourages the growth of coal and plant life. Over time, the statues and plants attract a growing number of fish to the area.

    Florida, U.S.A.

    Florida is home to different types of underwater museums. The state's newest underwater museum, the Underwater Museum of Art, can be found off the coast of Grayton Beach. This part of the Gulf Mexico is an underwater desert, so creators hope that the exhibit will improve the marine ecosystem.

    Cancun, Mexico

    For years, Cancun has been a popular tourist destination. And one of the major draws is the water. The Museo Subacuatico de Arte is an ideal place for snorkelers and first-time divers. There they can enjoy more than 500 statues that help to make up a man-made reef. This museum was created to offer visitors a replacement for the areas natural reef, which has been damaged.

    Canary Island, Spain

    Museo Atlantico, off the coast of Lanzarote, has an impressive display of more than 300 statues. They were created by the same sculptor who made the Cancun statues. They focus on man's interaction with the marine world.

    The day will come when renewable energy such as wind, solar, geothermal and others replace fossil fuels as the major source of world energy. However, most analysts insist that this day will not arrive for many decades to come—certainly well past the middle of the century. Systems of fossil fuels have already been firmly set up, and it is too costly or impractical to replace the existing systems with renewables. But there are good reasons to believe that the transition (转变) to renewables will come much faster than previously thought.

    It is hardly surprising that many experts say we will see a relatively slow transition from fossil fuels to renewables, given what is known about previous energy changes of this sort. "Energy transitions take a long time," observed Vaclav Smil of the University of Manitoba in Scientific American. It took more than 50 years for coal to replace wood as the world's leading source of energy and another 50 years for oil to replace coal; the change from fossil fuels to renewables, he argued, is not likely to come any faster.

    Under ordinary circumstances, Smil's forecast would no doubt prove accurate. But these are not ordinary times. Growing concern over climate change is leading to increasingly strict controls on CO₂ and other greenhouse gas (GHG) emissions (排放), while the development in renewables technology is lowering their price and speeding their installation.

    There are, of course, many difficulties in the effective control of carbon emissions, as demonstrated by coal companies to block the introduction of new rules by the US Environmental Protection Agency. Nevertheless, it is impossible to dismiss the progress being made at the local and international levels to promote the use of renewables. The European Union (E. U), for example, is well on the way to achieving a 20% reduction in GHG emissions from 1990 levels by 2020, along with a 20% increase in the use of renewable energy.

    The transition to renewables will be faster due to dramatic improvements in the pricing and performance of such systems. As a result of the steady increases in the efficiency of wind and solar systems, together with the savings achieved through large-scale manufacture, the price of renewables is falling globally. With prices dropping this fast, solar energy is now proving competitive with fossil fuels for generating electricity in many areas.

    The change from fossil fuels to renewable energy will not come overnight, and it will not escape many setbacks. Nevertheless, renewables are likely to replace fossil fuels as the main source of electrical power well before mid-century.