Discovering Tasmania

    The island of Tasmania is separated from mainland Australia by the Bass Strait. The island is a place of natural beauty and has more than 2,000 km of walking tracks and 18 national parks. If you go on a tour, you'll discover a wild and beautiful place where the people are friendly and the food is delicious. If you don't like walking, there are other tours you can choose from including a river cruise and cycling. You can also combine your tour with fishing, sailing or sunbathing on the beach. 

    One of the most incredible places to walk is along the Tarkine coast which is located in the north-west of Tasmania. It's such a wild and remote area that you can easily complete your walk without seeing anyone apart from the members of your group and your two guides. The area contains the largest temperate rainforest in Australia which is home to more than 50 endangered species. It is also home to many Aboriginal Heritage Sites. Your guides will provide you with plenty of information about the area as you complete that part of your tour. During your tour, you'll come across rivers, mountain ranges, spectacular waterfalls, wildlife and long wild beaches. It will be an experience you won't easily forget. 

Tour Itinerary:

Day 1:

    You're picked up from your hotel in the town of Launceston and driven to the Tarkine. You then complete a three-hour walk through the forest before arriving at your camp at Mystery Creek. There you will enjoy a delicious meal cooked by your guides.

Day 2:

    After breakfast, you continue deeper into the rainforest, passing some of the tallest trees in the world as you go, and stopping for lunch and then camp in the evening.

Day 3:

    The highlight of today's hike is the Tarkine Falls, a beautiful 15-metre waterfall.

Day 4:

    Today you can stay at the camp and bathe in the Tarkine Falls, or you can go for a day hike for more fantastic views of the forest.

Day 5:

    After a last hike through the forest, you are picked up at about 4:00 p.m. and you arrive in Launceston at around 7:00 p.m.

    The tour includes two professional guides, transport to and from the rainforest, all food while on the tours and all safety equipment. You should buy or hire recommended camping equipment including: backpacks, sleeping bags, sleep mats, head torches, rain coats and trousers.

    After a homeless man offered a college student in England all the money he had so she'd be able to get home safely, the woman is paying it forward—in a massive way.

    The story began in early December. It was about 3 a.m. and Harrison-Bentzen was panic. “I came out after a student night out and realized I didn't have any battery on my phone. I'd lost my friends,” the 22-year-old told BBC Radio 5. She'd also lost her bank card, she discovered, and she had no money.

    Just then, a homeless man, known only as Robbie, approached the young woman and asked her if she needed help. He reached into his pocket and pulled out all the money he had—loose change amounting to about $4.60. He insisted that Harrison-Bentzen take it to pay for a taxi so she'd get home safely.

    Harrison-Bentzen, a student at the University of Central Lancashire in Preston, England, says she refused to take Robbie's money and found another way to get home. But following her encounter（偶然相遇）with the generous man, she says she couldn't get him out of her mind.

    For the next few days, the student searched for Robbie, driving around the streets with her mom and using social media in an attempt to locate the man. In that time, Harrison-Bentzen says she learned more about Robbie and discovered that he actually had a reputation for helping strangers.

    Finally, after four days of driving around Preston, Harrison-Bentzen found Robbie. She was determined to do something to help change Robbie's life.

    So, earlier this month, the student launched a fundraising campaign in Robbie's name. She explained that she would be spending 24 hours on the streets, so as to “understand the difficulties” that the homeless face on a daily basis.

    Harrison-Bentzen says she had initially（最初）hoped to raise about $780 with her campaign. Her expectations, however, were quickly blown out of the water. As of Thursday morning, 4,800 people have donated almost $50,000.

    When my vision-challenged daughter was 3, and I was pregnant with my second child, we got her glasses. It was a long process involving many different opticians (配镜师)over the course of a year, because of my daughter's overwhelming desire to scream and fly into a temper any time we tried to have her eyes examined. The fourth optician was amazing while my daughter didn't cooperate, she performed various miracles and managed what she called a “best guess” at her prescription.

    “Start with this,” she said. “When she realizes she can see better, bring her back, and we can try for something more accurate.”

    I didn't want to pay $300 for glasses that might be replaced in a month's time, so I decided to bring her straight to a Walmart optical. Things were going on well, until the optician needed to take an additional measurement, which would involve holding a ruler up to her eyes and measuring the distance between the outer corner of one eye and the inner corner of the other.

    “Are you sure you need the measurement?” I asked. “She's really not cooperative when it comes to the eye-testing stuff.”

    “We definitely need to have it, we can't fill her prescription without it.” the optician said.

    But my daughter would not let the optician anywhere near her face with the small plastic ruler. She started yelling and crying, and we took her off to the side and promised we'd get ice cream afterward if she let the nice lady hold the ruler near her nose! The optician gave us the ruler, thinking we would have an easier time, but when my daughter knew we needed to hold the ruler near her face, which, in toddler logic, meant a life-or-death situation, she prevented us from getting anywhere near her.

    Finally, my husband and I agreed that one of us would have to hold her down and the other would take the measurement. I sat on the floor trying to hold her head still while my husband tried to get an accurate reading on that stupid ruler. Despite her struggle and scream, we finally got it. My daughter stopped crying three seconds later and went back to play as if nothing had happened.

    There is no version of this story where I feel comfortable us even if it was for her own good. I felt awful wondering, if magically know what to say to get her cooperation? The weeks spent with a special book about wearing glasses, telling her how great glasses were... I could feel tears welling up and I thought, “I can't cry. I'm sitting on the floor of a Walmart optical centre. I can't cry here.”

    And there it was the final thing I could not bear. It w already reduced me to sitting on the floor of a Walmart optical p toddler down to press a ruler against her face and do it for the packed Saturday audience of all the Walmart checkout counters. I cried. Big, shoulder-shaking sobs. Sitting right there on the floor of a Walmart, behind the optical counter.

    Five days later, the Walmart optical centre called. They said my daughter's glasses were ready for pickup and I should schedule an appointment with the optician so that we can have them properly fitted. I said I'd be picking up the glasses alone and we would do the fitting another day. She insisted that the fitting was crucial, to which I replied, “I don't know if you were working last Saturday, but my daughter is really not cooperating on this whole glasses thing. I'd prefer to just pick them up.” Silence. Then she said, “I was there last Saturday, I remember you. Absolutely, you can pick them up any time.”

    These days, people who do manual (体力的) work often receive far more money than people who work in offices. People who work in offices are frequently referred to as "white-collar workers" for the simple reason that they usually wear a collar and tie to go to work. Such is human nature, that a great many people are often willing to sacrifice higher pay for the honor of becoming white-collar workers. This can lead to curious situations, as it did in the case of Alfred Bloggs who worked as a dustman for the Ellesmere Corporation.

    When he got married, Alf was too embarrassed to say anything to his wife about his job. He simply told her that he worked for the Corporation. Every morning, he left home dressed in a smart black suit. He then changed into overalls (工作服) and spent the next eight hours as a dustman. Before returning home at night, he took a shower and changed back into his suit. Alf did this for over two years and his fellow dustmen kept his secret. Alf's wife has never discovered that she married a dustman and she never will, for Alf has just found another job. He will soon be working in an office. He will be earning only half as much as he used to, but he feels that his rise in status (身份；地位) is well worth the loss of money. From now on, he will wear a suit all day and others will call him 'Mr. Bloggs', not 'Alf'.

    Everybody hates rats (big mice). But in the earthquake capitals of the world — Japan, Los Angeles, Turkey — rats will soon be man's best friends.

    What happens after an earthquake? We send in rescue dogs. Why? Because they can smell people. Dogs save lives. They help rescuers to find living people. But dogs are big and they can't get into small spaces. So now a new research project is using a smaller animal to save lives: the rat.

    How does it work? First, the rat is trained to smell people. When this happens, the rat's brain gives a signal (信号). This is sent to a small radio on its back, and then the rescuers follow the radio signals. When the rat's brain activity jumps, the rescuers know that someone is alive. The rat has smelled that person.

    Although there are already robots which can do this job, rats are better. Christian Linster at Cornell University, New York, says, "Robots' noses don't work well when there are other smells around. Rats are good at that." Rats can also see in the dark. They are cheaper and quicker to train than dogs, and unlike robots, they don't need electricity!

    The "rat project" is not finished, but Julie Ryan of International Rescue Organization in Scotland says, "It would be wonderful. A rat could get into spaces we couldn't get to, and a rat would get out if it wasn't safe." Perhaps for the first time in history, people will be happy to see a rat in a building (but only after an earthquake, of course).

As far as we know batteries are playing an important role in our life. We couldn't live without batteries. Why so? Batteries provide power for anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri (MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.

" To provide enough power, we need certain methods with high energy density (密度)", said Jae Kwon, assistant professor of electrical and computer engineering at MU." The radioisotope(放射性同位素) battery can provide power density that is much higher than chemical batteries."

Kwo n and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro/ nanoelectromechanreal systems(M/NEMS). Although nuclear batteries can cause concerns, Kwon said, they are safe.

" People bear the word‘ nuclear' and think of something very dangerous," he said," However, nuclear power sources have already been safely powering a variety of devices, such as pace- makers, space satellites and underwater systems."

His new idea is not only in the battery's size, but also in its semiconductor(半导体). Kwon's battery uses a liquid semiconductor rather than a solid semiconductor.

" The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶体结构) of the solid semiconductor, Kwo n said," By using a liquid semiconductor, we believe we can minimize that problem."

Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwo n is working to build and test the battery. In the future, they hope to increase the battery's power, shrink its size and try with various other materials. Kwo n said that battery could be thinner than the thickness of human hair.