Christmas was coming, I was considering what present I should prepare for my father.My dad never wants anything, for he is a hard person to buy for . I pulled out my phone to read text message from my mom saying that we were leaving for Christmas shopping for him when I came across a message on my phone that I had locked. The message was from my father.My eyes fell on a photo of a flower taken in Wyoming，and underneath a poem by William Blake. The flower，a lone dandelion standing against the bright blue sky，inspired me. My dad had been reciting those words to me since I was a kid. That may even be the reason why I love writing. I decided that those words would be my gift to my father.

    I called back. I told my mom to go without me and that I already created my gift. I sent the photo of the cream ­colored flower to my computer and typed the poem on top of it. As I was arranging the details another poem came to mind .The poem was written by Edgar Allan Poe；my dad recited it as much as he did the other. I typed that out as well and searched online for a background to the words of it. The poem was focused around dreaming，and after searching I found the perfect picture. The image was painted with blues and greens and purples，twisting together to create the theme and wonder of a dream. As I watched both poems passing through the printer，the white paper coloring with words that shaped my childhood. I felt that this was a gift that my father would truly appreciate.

    Christmas soon arrived. The minute I saw the look on my dad's face as he unwrapped those swirling black letters carefully placed in a cheap frame，I knew I had given the perfect gift.

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    We all know the names of certain famous male inventors throughout history, from Galileo to Alexander Graham Bell to Steve Jobs. Do you know the outstanding ladies listed below?

    Margaret Knight (1838-1914)

    Margaret Knight was nicknamed “the lady Edison'' for her productive inventions which included a safety device for textile looms, shoe manufacturing machines, a rotary engine and internal combustion engine (内燃机), among many others. Knight received 27 patents in her lifetime.

    Josephine Cochran(1839-1913)

    Cochrane, a wealthy woman who entertained often, wanted a machine that could wash dishes faster than her servants, and without breaking them. When she couldn't find one, she built the first dishwasher herself in 1886. She received a patent for her famous invention and started a company to sell her invention to restaurants and hotels.

    Katharine Burr Blodgett (1898-1979)

    Katharine Blodgett was the first woman to receive a Ph.D in physics at England's Cambridge University and the first woman hired by General Electric. Her most influential invention was non-reflective glass, which today is still essential for eyeglasses, car windshields and computer screens.

    Stephanie Kwolek (1923-2014)

    In 1965, Stephanie Kwolek created an unusually lightweight and durable new fiber which was later developed by a chemical company DuPont into the synthetic Kevlar (凯夫拉尔纤维), used in everything from military helmets and bulletproof vests to work-gloves, sports equipment, and building materials. Kwolek was awarded the National Medal of Technology for her research on synthetic fibers and was admitted into the National Inventors Hall of Fame in 1994.

    For centuries, medical pioneers have refined a variety of methods and medicines to treat sickness, injury, and disability, enabling people to live longer and healthier lives.

    “A salamander (a small lizard-like animal) can grow back its leg. Why can't a human do the same?” asked Peruvian-born surgeon Dr. Anthony Atala in a recent interview. The question, a reference to work aiming to grow new limbs for wounded soldiers, captures the inventive spirit of regenerative medicine. This innovative field seeks to provide patients with replacement body parts.

These parts are not made of steel; they are the real things — living cells, tissue, and even organs.

    Regenerative medicine is still mostly experimental, with clinical applications limited to procedures such as growing sheets of skin on burns and wounds. One of its most significant advances took place in 1999，when a research group at North Carolina's Wake Forest Institute for Regenerative Medicine conducted a successful organ replacement with a laboratory-grown bladder. Since then, the team, led by Dr. Atala, has continued to generate a variety of other tissues and organs—from kidneys to ears.

    The field of regenerative medicine builds on work conducted in the early twentieth century with the first successful transplants of donated human soft tissue and bone. However, donor organs are not always the best option. First of all, they are in short supply, and many people die while waiting for an available organ; in the United States alone, more than 100,000 people are waiting for organ transplants. Secondly, a patient's body may ultimately reject the transplanted donor organ. An advantage of regenerative medicine is that the tissues are grown from a patient's own cells and will not be rejected by the body's immune system.

    Today, several labs are working to create bioartificial body parts. Scientists at Columbia and Yale Universities have grown a jawbone and a lung. At the University of Minnesota, Doris Taylor has created a beating bioartificial rat heart. Dr. Atala's medical team has reported long-term success with bioengineered bladders implanted into young patients with spina bifida (a birth defect that involves the incomplete development of the spinal cord). And at the University of Michigan, H. David Humes has created an artificial kidney.

    So far, the kidney procedure has only been used successfully with sheep, but there is hope that one day similar kidney will be implantable in a human patient. The continuing research of scientists such as these may eventually make donor organs unnecessary and, as a result, significantly increase individuals' chances of survival.

    Terrafugia Inc. said Monday that its new flying car has completed its first flight, bringing the company closer to its goal of selling the flying car within the next year. The vehicle —named the Transition – has two seats, four wheels and wings that fold up so it can be driven like a car. The Transition, which flew at 1,400 feet for eight minutes last month, can reach around 70 miles per hour on the road and 115 in the air. It flies using a 23-gallon tank of gas and burns 5 gallons per hour in the air. On the ground, it gets 35 miles per gallon.

    Around 100 people have already put down a $10,000 deposit to get a Transition when they go on sale, and those numbers will likely rise after Terrafugia introduces the Transition to the public later this week at the New York Auto Show. But don't expect it to show up in too many driveways. It's expected to cost $279,000.And it won't help if you're stuck in traffic. The car needs a runway.

    Inventors have been trying to make flying cars since the 1930s, according to Robert Mann, an airline industry expert. But Mann thinks Terrafugia has come closer than anyone to making the flying car a reality. The government has already permitted the company to use special materials to make it easier for the vehicle to fly. The Transition is now going through crash tests to make sure it meets federal safety standards.

    Mann said Terrafugia was helped by the Federal Aviation Administration's decision five years ago to create a separate set of standards for light sport aircraft, which are lower than those for pilots of larger planes. Terrafugia says an owner would need to pass a test and complete 20 hours of flying time to be able to fly the Transition, a requirement pilots would find relatively easy to meet.

    Paris is the city of dreams; the city of love. If you are thinking of heading to Paris for a study period, then perhaps a little reality check is in order. But my experience was a romantic one.

    I paved my path to Paris through an exchange program. On arrival in Paris, I was constantly reminded of the official processes I was required to complete — forms to be filled in, meetings to attend, the list seemed endless. Perhaps it was due to my well organizational habit, but somehow this endless list of to do's was completed in little more than a week.

    Then the real work began. Once classes were underway, I found myself volunteering to do oral presentations and assignments first, rather than last. This method turned out to be very helpful.

    Once I had finished class for the week, I had an ever-increasing list of museums to visit, neighborhoods to explore, cafés to sit in, and parks to run around. Read as many books about Paris as you can. Talk to as many locals and other foreigners living there as you can. The one thing that reading a book or talking to someone cannot do is to provide you with the experience of wandering Paris on foot. I discovered some of my favorite places in Paris by wandering. The people watching, the sounds of the city, the colors as the seasons change, they all add to the ecstasy that is experiencing Paris as an exchange student.

    After spending five months wandering through the charming neighborhoods, I fell in love with the atmosphere that came out from every open door, and with every spoken word. There is something comforting about walking to the market each Sunday to be faced with the beautiful display of fruits, vegetables and dairy products. There is warmth in saying bonjour to the man across the hall.

    On my last day in Paris, I confidently said, “Bonjour Monsieur,” as I passed the little store down the street. I guess no matter how hard I tried I was always going to be an outsider, a tourist. The best part about going on exchange in Paris is falling in love with the city in your own unique way. Everyone's experience of Paris is different. I know mine is unique and special to me, my own little pieces of Paris.

    It's always adventurous and romantic to visit an island country. Take a look at some breathtakingly beautiful island countries in the world, which everyone should visit at least once in his lifetime

    Maldives

    It's believed that Maldives is one of the most popular honeymoon(蜜月) places as well as one of the most beautiful island countries. Situated in the middle of the Indian Ocean, Maldives is made up of a series of ancient coral reefs that grow up along the sides of ancient volcanoes, with fascinating beaches

    Fiji

    Fiji has plenty of surprises for any adventurous traveler. It is famous for the world's best surf scenes, attracting many surfing lovers to ride the great waves. Well, if surfing is not for you and you love sitting on the beach and relaxing, hiking or seeing breathtaking waterfalls, Fiji is also a suitable island country to visit

    Malta

    Malta, a beautiful southern European country in the Mediterranean Sea, has a rich history and culture. There are amazing sky-high cliffs to climb>, wonderful temples to visit and lots of amazing places to go diving. There are plenty of interesting things to explore here and everyone can find something to enjoy. The historic part of Malta is shown in its architecture, great walled cities, and many underground tunnels.