Visiting Joshua Tree National Park, California

    Joshua Tree National Park is nearly 800,000 acres (英亩) large and surrounds parts of the Mojave and Colorado Deserts in South-central California. Although deserted at first sight, the park is full of wildlife and provides a variety of entertainment activities from hiking to climbing. Within a three-hour drive, Joshua Tree National Park takes at least a full day to visit.

Things to do

    Hiking opportunities within the park include several choices, from 12 self-guided nature routines to all-day back-country hikes.

    Joshua Tree NP has nine camping grounds, and back-country camping is also allowed.

    Rock climbing is a popular activity in the park, which has 10 mountains greater than 5, 000 feet in height.

When to visit

    Joshua Tree NP is open 365 days a year, although the best time to visit is October through April, when temperature is milder. The peak season is when the wild flowers bloom, and the summer months are the least crowded.

What to bring

    In addition to your camera and telescope, be sure to carry lots of water. Park and guiding maps can be picked up at any of the three visitor centers.

Fees

    Parking fees: You can buy a seven-day vehicle permit (周票) for $ 15, a single entry permit for $ 5, or Joshua Tree National Park annual (每年的) pass for $ 60.

    Camping fees: They vary by camping ground

    When I was eight, I saw a movie about an island that had an erupting volcano and jungles filled with wild animals. The island was ruled by a beautiful woman called Tondalaya, the Fire Goddess of the Volcano. It was a low-budget(小成本) movie, but to me, it represented the perfect life. But through the years, Tondalaya was forgotten.

    The week I turned 50, my marriage came to a sudden end. My house, furniture and everything I'd owned was sold to pay debts that I didn't even know existed. In a week I had lost my husband, my home and my parents who had refused to accept a divorce (离婚) in the family. I'd lost everything except my four teenage children. I used every penny I had to buy five plane tickets from Missouri to Hawaii. Everyone said I was crazy to think I could just run off to an island and survive. I was afraid they were right.

    I worked 18 hours a day and lost 30 pounds because I lived on one meal a day. One night as I walked alone on the beach, I saw the red orange lava (火山岩) pouring out of Kilauea Volcano in the distance. It was time to live my imagination!

    The next day, I quit my job, bought some art supplies and began doing what I loved. I hadn't painted a picture in 15 years. I wondered if I could still paint. My hands trembled the first time I picked up a brush. But before an hour had passed, I was lost in the colors spreading across the canvas (画布) in front of me. And as soon as I started believing in myself, other people started believing in me, too. The first painting sold for $1,500.

    The past six years have been filled with adventures. My children and I have gone swimming with dolphins, watched whales and hiked around the crater rim (火山口边缘) of the volcano. We wake up every morning with the ocean in front of us and the volcano behind us. The dream I had more than 40 years is now reality. I'm living freely and happily ever after.

    My friend Jason and I wanted to do something to help other people who are less lucky and help us grow at the same time. After we decided that we would volunteer in Nepal, I did some surveys on the Internet and I found an organization called Volunteer(志愿者) Nepal and felt strongly that it was the right choice for us.

    While making our plans, Jason and I realized that others might like the chance to be a part of our experience. So before leaving for Nepal, we asked the people we know whether they would be interested in donating(捐赠) money or goods to Nepal Orphans Home.

    One friend, whose family owns a shop called Drake Supermarket, told others about it. Many people wanted to donate something. We received donations that filled 29 boxes with sporting goods, toys, coloring books, pencils, children's books, and more, The boxes were later taken to Drake's warehouse(仓库) where I prepared them for shipment. Drake agreed to ship them to Nepal for free .

    The boxes had arrived at the Volunteer House when we arrived there. The next day, Jason and I opened the boxes. The children from the orphanages(孤儿院) stood in a line and were able to choose a gift. This took about an hour, but the looks on their faces and the happiness that we saw in their eyes made it one of the best days of our life.

    We visited the orphanages there in the following days. Being with the children at the orphanages was both sad and wonderful. I'm sure that anyone who has volunteered will understand what I mean by that. My experience as a volunteer was very useful. It has changed me as a person and the way I viewed life in the past.

    As computers become more popular in China, Chinese people are more and more depending on computer keyboards to input Chinese characters(汉字). But if they use the computer too much, they may end up forgetting the exact strokes(笔画) of each Chinese character when writing on paper. Experts suggest people, especially students, write by hand more.

    Do you write by hand more or type more? In Beijing, students start using a computer as early as primary school. And computer dependence is more widely spread among university students. Almost all their homework and essays are typed on a computer.

    All the students interviewed say they usually use a computer.

    It's faster and easier to correct if using a computer. And that's why computers are being used more and more often to modern education. But when people are taking stock in computers increasingly, problems appear.

    'When I'm writing with a pen, I find I often can't remember how to write a character, though I feel I'm familiar with it.'

    'I'm not in the mood to write when faced with a pen and paper.'

    Many students don't feel this is something to worry about. Now that it's more convenient and efficient to write on a computer, why bother to handwrite?

    Many educators think differently. Shi Liwei, headmaster of a famous primary school in the capital said, 'Chinese characters enjoy both practical and aesthetic (审美的)value. But those characters typed with computer keyboards only keep their practical value. All the artistic beauty of the characters is lost. And handwriting contains the writer's feelings. Through one's handwriting, people can get to know one's thinking and personality. Beautiful writing will give people a better first impression of them.'

    To encourage students to handwrite more, many primary schools in Beijing have made writing classes compulsory（必修的）and in universities, some professors are asking students to turn in their homework and essays written by hand.

    Wolves travel shorter distances and move slower during snowfall events, according to new research by University of Alberta biologists. The effects were most pronounced at night, when wolves hunt, and behaviour returned to normal within a day. Wolf tracks across snow in northeastern Alberta.

    "Our findings suggest that there is something about actively falling snow that causes wolves to slow down," said Amanda Droghini, a former MSc student in the Department of Biological Science and lead author on the study. "We don't know the exact mechanism behind that. It's unlikely that they were staying still because they were feasting on a recent kill. Instead, active precipitation(降雪量)might affect wolves' hunting abilities. Like rain, snow clears the air column of scent molecules. So, maybe falling snow makes it harder for wolves to detect the smell of prey."

    Over the course of two winters, the researchers used remote cameras to disclose snowfall events and estimate snow depth. To study wolf movement, they collected telemetry(测距仪) data from 17 wolves to calculate travel speed and duration, as well as resting periods. It is the first study to examine how large flesh-eating animals respond to snowfall events.

    With the effects of climate change on precipitation in the north forest region uncertain, it is difficult to predict the implications for wolf populations. Studies such as these increase our understanding of how large mammals react to normal snowfall events, but the type and amount of winter precipitation will likely have an impact on animal behavior and the energetic cost of movement.

    "Winter is already challenging for many wildlife species because moving through snow requires more energy. Snow can also make it harder for animals to access food resources," said Droghini, who conducted the research under the supervision of Professor Stan Boutin, Alberta Biodiversity Conservation Chair.

    "Anything that increases those costs, such as increased rain-on-snow events, could lead to lacking in nutrition, poor body condition, and even starvation as animals are unable to make up for those additional costs. That is one of the worst-case scenarios(设想)but, in truth, we know very little about potential changes to precipitation patterns and how wildlife will respond to those changes."

    Breakdancing is set to make its first debut (亮相) as an Olympic sport at Paris 2024, Tony Estanguet, head of the Paris organizing committee, said on February 21st. Skateboarding, sport climbing and surfing, which have already been added to the programme for the 2020 Tokyo Olympics, have been invited to return in Paris four years later.

    Tony Estanguet said the choices responded to a need to make the Olympics "more urban" and "more artistic". We have chosen to present the International Olympic Committee (IOC) with the four sports because they are creative, appealing to youth and completely in line with our vision. They reflect perfectly Paris 2024's identity.

    Breakdancing is an example of a sport "Which can be played anywhere and anytime in urban and other environment." It appeared at the 2018 Youth Olympics in Buenos Aires in the form of head-to-head "battles". In competitive breakdancing, "breakers" face off in "battles" against each other, either as individuals or teams. Breakdancers use a mix of physical and artistic skills combining elements from gymnastics or acrobatics (杂技).

    The IOC had announced that the number of competitors at Paris 2024 would be restricted to 10, 500, which limited the opportunity to add sports. But the organizers said the inclusion of the four sports in Paris would not necessitate the construction of permanent facilities and would involve just 248 competitors, of which 32 would he in breakdancing. The surfing events are likely to be held in established surf centres such as Biarritz or Lacanau in southwest France.

    The inclusion still need to be rubberstamped by the IOC, which is expected to decide on which sports to add in Paris after next years' Tokyo Games.