Ever wonder how much a cloud weighs? What about a hurricane? A meteorologist（气象学家） has done some estimates and the results might surprise you.

    Let's start with a very simple white puffy cloud—a cumulus cloud(积云). How much does the water in a cumulus cloud weigh? Peggy LeMone, senior scientist at the National Center for Atmospheric Research in Boulder, Colorado, did the numbers. “The water in the little cloud weighs about 550 tons,” she calculates. “Or if you want to convert it to something that might be a little more meaningful...think of elephants.” Assume（假设） an elephant weighs about six tons, she says, that would mean the water inside a typical cumulus cloud would weigh about one hundred elephants.

    The thought of a hundred elephants' worth of water floating in the sky begs another question—what keeps it up there?

    “First of all, the water isn't in elephant-sized particles(微粒); it's in tiny tiny tiny particles,” explains LeMone. And those particles float on the warmer air that's rising below. But still, the concept of so much water floating in the sky was surprising even to a meteorologist like LeMone. “I had no idea how much a cloud would weigh, actually, when I started the calculations（计算）,” she says.

    So how many elephant units of water are inside a big storm cloud—10 times bigger all the way around than the “puffy” cumulus cloud? Again, LeMone did the numbers: About 200,000 elephants.

    Now, come to the calculations for a hurricane about the size of Missouri and the figures get really massive. “What we're doing is weighing the water in one cubic meter theoretically pulled from a cloud and then multiplying by the number of meters in a whole hurricane,” she explains.

    The result? Forty million elephants. That means the water in one hurricane weighs more than all the elephants on the planet. Perhaps even more than all the elephants that have ever lived on the planet.

    There is a story about a man who lost his legs and left arm in an accident. After the accident, only a finger and thumb on his right hand remained.

    He was a brilliant, creative, and educated man. He had gained a lot of experience while traveling around the world, so he became very depressed after his accident. He was afraid that he would spend the rest of his life suffering and would no longer be able to spend his life in a meaningful way. Then, he realized that he still had partial function of his right hand and could still write even though it was very difficult. An idea occurred to him. “Why not write to other people who need encouragement?”

    He wrote to the prison ministry about sending letters to the prisoners. The prison minister replied, “Writing to the prisoners is acceptable, but your letters will not be answered.”

    Filled with excitement, the man knew he could write his letters. He began sending one-way messages of God's love, hope, strength, and encouragement. He wrote twice a week, testing his strength and ability to the limit. He poured his heart and soul into his words and shared his experience, sense of humor, optimism, and faith.

    It was difficult to write those letters, especially without hope of a reply. One day he received a letter from the prison ministry. It was a short note from the officer who monitored and checked the prison mail.

    The letter said, “Please write on the best paper you can afford. Your letters are passed from cell (囚房) to cell until they literally (逐字地) fall to pieces!”

    No matter what circumstances life may present, we all have unique experiences, abilities, and God-given talents. We can discover ways to reach others who desperately need messages of encouragement and strength.

    As the weather costs you a loss on trains and flights, we look at your rights.

Cancelled trains

    On a single ticket, a passenger will usually receive 25% of the fare if the train is delayed by 15 minutes. If the delay reaches 30 minutes, the compensation（补偿金）rises to 50%, and if it's over an hour you should be able to reclaim the whole cost. Clear arrangements vary according to train operators（运营商）.

    If you were due to travel, to say Aberdeen from London, your train is cancelled and you decide not to travel, you can get a full compensation. If you had a non-cancelable ticket with one operator, and failed to make that train because the connecting train was delayed, you can take the next available train.

Flights

    If your flight is cancelled because of the snow you have the right to s full compensation of the ticket, or to be rerouted home on a later flight.

    But you will have no right to get a delay or cancellation compensation under EU rules, because the snow is an extraordinary circumstance beyond the airline's control. If you don't take the compensation and choose to be rerouted, and it means you are stuck at the airport overnight, it's the airline's duty to pay for a reasonably priced hotel room and meals.

    The airline has to reroute you at the earliest opportunity, or at the passenger's free time, you are supposed to take the availability of seats.

    If you choose to be rerouted or if your departure is delayed by more than two hours, airlines also have to provide assistance such as food. The airlines keep this quiet and getting the money out of the low-cost operators can be a hard job. Keep evidence of cancellations, all receipts, and use your mobile to video any offer to pay by airline staff.

    There is one type of illness in the world that has a severe effect on more people than anything else and is very deadly. If untreated, this illness could affect everything you do. What is this illness? Depression. Serious depression requires professional treatment. Self-induced depression is something each of us can change.

    Everyone's circumstances are different, but the causes of self-induced depression are common: low self-esteem, hurtful thinking and a bad attitude.

    So how can we change the way we think, feel, and have a cheerful attitude?

    First we must look at ourselves, truly and honestly examining our motives for what we wish to accomplish. If you are dissatisfied because you feel you haven't or can't do anything, then one step is needed—to set goals.

    Always start your goals relatively small and easy to attain. Think of them as sand; one grain may be insignificant(微不足道的) but as a group they form the beach. Once you have set and attained small goals for yourself, move on to slightly larger, more challenging goals.It takes not just setting goals but positive thinking. How can we obtain this?

    There are a number of factors that can make us think negatively and one of those is diet.In my opinion, a person who eats a lot of take-out and fast food is feeding their body junk. Start by eating better foods which give the body much NEEDED minerals. If your physical body is happy, it's much easier for your mental body or “thinking ability” to be happy.

    Next, exercise. Half an hour a day is recommended for positive well-being. Then think about good memories you had, or generally think of things that make you smile. Remember, everything you wear costs money but to wear a smile is free. A smile can be the difference between an average day and a great day.

    If you follow these steps, positive change is on the way.

    The siesta competition took place in a supermarket, with plenty of shoppers, screaming babies, talking voices, and footsteps to take the competitors' attention away from their after lunch sleeps.

    Five bright blue sofas were laid out, and five competitors at a time were allowed to take a 20-minute sleep. A doctor measured their pulse to time how long they actually spent on asleep. Competitors earned extra points for snoring (打鼾), sleeping in strange positions, or wearing silly pajamas (睡衣). The winners of each round advance to the next stage in the competition.

    It's amazing that any of those people would fall asleep in the middle of such a busy place, while on couches that they are not used to. Yet, many of them did. They hugged pillows or soft toy bears. They covered their eyes with sleep masks, too. Whatever it took to help them fall asleep fast and stay asleep.

    The siesta is a tradition in Spain that many feel is becoming forgotten. It used to be that people would take a brief nap after lunch every day. This would energize them, and keep them going for the rest of the day. Not to mention the health benefits of a good nap. But, that's all changing. People are too busy making money or watching gossip shows on TV after lunch to care about taking a nap.

    The National Association of Friends of the Siesta wants to bring Spain back to their traditional roots. They are doing this by having the siesta competition. They set up the competition to reward the best sleepers with money. Actually, they were paid to sleep.

    There are really health benefits to a midday nap. We could all learn from this tradition. It's a much better way to get more energy than drinking a cup of coffee. It is also believed that a nap, and in fact a good night's sleep, can help reduce heart disease. The more rested we are, the less stress we feel with day-to-day life.

    Will it matter if you don't take your breakfast? A short time ago, a test was given in the United States. People of different ages, from 12 to 83, were asked to have a test. During the test, these people were given all kinds of breakfast, and sometimes they got no breakfast at all. Scientists wanted to see how well their bodies worked when they had eaten different kinds of breakfast.

    The results show that if a person eats a right breakfast, he or she will work better than if he or she has no breakfast. If a student has fruit, egg, bread and milk before going to school, he or she will learn more quickly and listen more carefully.

    The result is opposite to what some people think. Having no breakfast will not help you lose weight. This is because people become so hungry at noon that they eat too much for lunch. They will gain weight (增加体重) instead of losing it. You will lose more weight if you decrease your other meals.