If you've ever owned a chimney, you know that it can get pretty dirty. There's a whole lot of soot(烟灰) that gets stuck on the inside. That stuff has to get cleaned, or you could have a serious fire risk. While nowadays we have easier ways of doing this dirty job, in the way back days somebody used to climb up the chimney and clean all that soot. And the thing is, not just anybody could do it.

    You had to be really small to fit up in the chimney, so they used to give the task to kids – some as young as four or five years old. They worked for their boss known as a master-sweep. They were often covered in soot, and were very likely to get burned. They often developed what became known as soot wart, a form of cancer.

    Are your unfairness bells ringing? William Blake's certainly were. The physical dangers and widespread unfairness of the chimney-sweeping job really stuck in his throat, so much so that he wrote not one, but two poems called “The Chimney Sweeper”.

    The first poem (the one we're discussing here)was published in 1789 in a book called Songs of Innocence. These little poems took children and the joys of childhood innocence as their subject. As you've probably guessed by now, many of the poems in Songs of Innocence, like “The Chimney Sweeper”, are about the ways in which childhood innocence is destroyed by unkind old adults. For Blake, innocence is, in many ways, a total joke. It doesn't exist, because it's always taken away by the realistic world – chimney-sweeping, death, poverty, etc.

    What does a five-year-old chimney sweeper in 18th-century England have to do with you? More than you might think. It is reported that 150 million kids are in child labor in developing countries. Many of them work long hours and face dangerous health risks. Like Blake's chimney sweeper, these kids are not even given a chance at innocence because experience keeps getting in the way.

Sea Life Melbourne Aquarium (水族馆)

    The all-new Sea Life Melbourne Aquarium, situated in the heart of Melbourne's CBD, is one of Victoria's leading visitor attractions and an unforgettable outing for the whole family. Having 12amazing zones of discovery, Sea Life Melbourne Aquarium is the very place that you cannot miss when you visit the city.

* Opening Times

    Sea Life Melbourne Aquarium is open from 9:30 am until 6:00 pm every day of the year, including public holidays. Last admission is at 5:00 pm, one hour before closing.

* Location ( 位置)

    Sea Life Melbourne Aquarium is located on the corner of Flinders Street and King Street, Melbourne. It is situated on the Yarra River, opposite Crown Entertainment Complex.

* Getting to Sea Life Melbourne Aquarium

Train

    The Sea Life Melbourne Aquarium train stop is located on the free City Circle Tram route (公交线路) and also routes 70 and 75. City Circle trams run every 10 minutes in both directions.

Shuttle Bus

    The Sea Life Melbourne Aquarium is a free bus service, stopping at key tourist attractions in and around the City. Running daily, every 15 minutes from 10:00 am to 4:00 pm.

Car Parking

    While there is no public car parking at Sea Life Melbourne Aquarium, there are several public car parking lots available only a short walk away.

* Wheelchair Access

    Sea Life Melbourne Aquarium provides people in wheelchairs with full access to all 12 zones.Each floor also has wheelchair accessible toilets.

* Terms

    Tickets will be emailed to you immediately after purchase or you can download and print your ticket once payment has been accepted. Please print out all tickets purchased and present at the front entrance of Sea Life Melbourne Aquarium. No ticket, no entry!

    It's common knowledge that some countries have higher life expectancies than others, but the city you live in can also affect your health.

    Some cities are hard on their residents. In places with poor city planning, for example Lagos, which was called out recently by the Economist Intelligence Unit, public spaces are few, making outdoor activities hard. Lack of infrastructure (基础建设) blocks the streets with cars and the air with pollutants, and residents work long hours for little money.

    These are just some of the factors added up by Spotahome, a rental agency. They've analyzed data from a range of sources, including the World Health Organization, TripAdvisor and the CIA World Factbook to score each city on health, gym availability and quality, life expectancy, obesity, green space and other elements to make a list to work out which are the world's healthiest cities.

    The list is certainly Euro-centric and sunshine is seen as a positive factor. It does go some way towards suggesting which cities are getting it right in providing a good life for their residents. It may not be surprising to learn that most of the healthiest cities are in northern Europe, known for its people-first approach to city planning. The cities of Australia and Canada also do well. However, the first American city is only in 34th place. The UK doesn't fare too well either-its only city in the top 50 list is London, in 40th.

    Whether you're planning a wholesome holiday, or simply wondering what your city can do better in its quest for happy citizens, the list of the 50 healthiest cities will give you pause for thought about the future of city planning. Here are the slender, healthy-eating, clean-aired cities that are getting it right.

    Eight years ago, Special Olympics Georgia Forsyth County was introduced to Britt Hall. Britt Hall is a Special Olympics Georgia athlete. "The first sport I started competing in with Special Olympics Georgia was softball. I was with the Forsyth Golden Gloves, and we were a pretty good team," said Britt as he looked back upon his first state game.

Since then, the athlete has competed in much more than softball. Britt has gone on to compete in bocce, basketball, athletics, table tennis, volleyball and flag football during his Special Olympics Georgia career (职业生涯). And he performed well in these games. "Athletics has always been one of his favorite sports to compete in," said Britt's father. "He likes the different competitions within athletics, especially the races (赛跑). "

    "I like athletics, but I am excited for flag football this year. We are going to play just as well as the Falcons," Britt said. This year, Britt and his teammates will be returning to Emory University as the Special Olympics Georgia Forsyth County Mean Machine, one of the two flag football teams from Special Olympics Georgia Forsyth County. Despite the word "mean" being in their name, Britt says that their aim is not to be mean to their competitors. "We want to win the gold, but we want to be nice to the other teams and encourage them. They are our friends and have worked just as hard as we have for the state competitions," Britt explained.

    While athletes are encouraged to try their very best and go for the gold, Special Olympics Georgia centers on sportsmanship and friendship during competitions. Britt has always been a good team player, but he is also very competitive. Special Olympics Georgia has helped him gain confidence as an athlete, which shows him how to cheer on his teammates and the opposing athletes.

    "I've learned a lot from being in Special Olympics Georgia. I think there is a lesson for everyone who competes," said Britt.

    Here are some events in the following months. Have a look and pick out your favorite.

    AVCS Informational Tour

    Aliso Viejo Christian School, a highly rated private school, which serves children in grades, invites potential families to its annual AVCS informational tour. Come and see its facility, meet its staff, check out its curriculum and amazing programs. The tour would love to share the school with you and answer any questions.

    Location: AVCS Campus

    German Immigrants Exhibition

    German immigrants played a huge role in shaping Indianapolis through the 19th century. They brought educational reform, political activity and greenhouse farming. In addition to produce, these immigrants also kept their communities full of flowers and trees, know about this part of history in October.

    Location: Indiana Historical Society

    Whale Watching

    Gray whales migrate (迁徙) annually along the west coast of North America. They can be seen from the Orange County coast from December through early April. Summer and fall bring the giant blue whales. They can be seen from June through September. Since the gray whales migrate just a few miles off the coast, simple sail from Newport Beach enables you to see these spectacular creatures in their natural habitat.

    Location: Newport Beach

    Sunday Brunch(早午餐)

    Sunday brunch is a wonderful way to enjoy your weekend. At View Restaurant, Sunday brunch is always accompanied by champagne, spectacular views and unique atmosphere. The menu includes traditional breakfast foods and lunch favorites like barbeque and fresh fish selections. You can also choose to view sporting events in the restaurant. With enough variety to satisfy every appetite from kids to adults, this is one Sunday brunch you'll keep coming back to!

    Location: View Restaurant

Scientists at the Department of Energy's Lawrence Berkeley National Laboratory and the California Institute of Technology have-in just two years-nearly doubled the number of materials known to have potential for use in solar fuels.

They did so by developing a process that promises to speed the discovery of commercially viable (商业可行性) generation of solar fuels that could replace coal, oil, and other fossil fuels.

Solar fuels, a dream of clean-energy research, are created using only sunlight, water, and carbon dioxide. Researchers are exploring a range of possible target fuels, but one possibility is to produce hydrogen by splitting water.

Each water molecule (分子) consists of one oxygen atom and two hydrogen atoms. The hydrogen atoms are extracted, and then can be reunited to create highly flammable hydrogen gas or combined with CO 2 to create hydrocarbon fuels, creating a plentiful and renewable energy source. The problem, however, is that water molecules do not simply break down when sunlight shines on them-if they did, the oceans would not cover most of the planet. They need a little help from a solar-powered catalyst (催化剂).

To create practical solar fuels, scientists have been trying to develop low-cost and efficient materials that perform the necessary chemistry using only visible light as an energy source.

A new method was developed through a partnership between the Joint Center for Artificial Photosynthesis (JCAP) and Berkeley Lab's Materials Project, using resources at the Molecular Foundry and the National Energy Research Scientific Computing Center (NERSCC). JCAP focused on developing a cost-effective method of turning sunlight, water, and carbon dioxide into fuel. It is led by Caltech with Berkeley Lab as a major partner. The Materials Project is a program based at Berkeley Lab that aims to remove the guesswork from materials design in a variety of applications.

"What is particularly significant about this study, which combines experiment and theory, is that in addition to identifying several new compounds for solar fuel applications, we can also learn something new about the basic electronic structure of the materials themselves." says Neaton, the director of the Molecular Foundry.