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（定金） to get a Transition when they go on sale, and those numbers will 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 as much as $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 (联邦航空管理局) 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.

    I had reached the age of twenty-eight. Still, I doubted the letter from my past would make it to me, all these years later. It was a simple creative writing assignment from when I was eighteen. The teacher collected our letters to our future selves in self-addressed envelopes with stamps and promised to mail them ten years later. Yet so much time had passed. Would he even remember?

    Thinking back on the letter, I vaguely recalled giving my future self some advice. When you're eighteen years old, twenty-eight seems like a grown-up age but I wasn't feeling as grown up as I believed my younger self had expected me to be.

    When the letter finally reached me, I opened it eagerly. It began," How much do you bet this letter will never get to you "It continued to greet me casually as if we were having an IM (instant messaging) chat. My eighteen-year-old self was so stressed! As a senior in high school, facing the SATS and college applications, I was apparently not quite happy and hoped I wouldn't worry so much in the future, and that I wouldn't forget to be present and enjoy my life!

    Contrary to my belief, my eighteen-year-old self did not have any demands of me, or expectations I might have failed to meet. Instead, she wrote," I'll stand by whatever you do. Even if you are not who I'm imagining now, I'll support you, because maybe who I' m imagining is someone else, and you are-well you're not someone else, you're me."

    I was blown away, and tears welled up in my eyes at this self-acceptance through time. I had put a lot of pressure on myself to be the best version of myself that I could be. However, I came to realize what I would have accomplished in ten years' time would pale in comparison to how I'd feel and who I'd be.

    The goings-on in the consulting room have become more transparent(透明的）recently. Thank goodness. We know more than the lines supplied by the movies in which the therapist knows all and gives wisdom to those who, sitting on a couch, consult with them. Therapists are interested in how the individual, the couple or the family experiences and understands their difficulties. That has to be a starting place. We can be of value if our first port of call is to listen, to gradually feel ourselves into the shoes of the other, to absorb the feelings that are being conveyed and to think and then to say some words.

    The thinking and talking that I do inside the consulting room is at odds with many features of ordinary conversation. Not that it is mysterious, but it isn't concerned with traditional ways of sharing or identifying. The therapist makes patterns and theories, but they are also reflecting on the words that are spoken, how they are delivered and how the words, once spoken, affect the speaker and the therapist themselves.

    Words can give voice to previously unknown feelings and thoughts. That's why it's called the talking cure. But just as words reveal so, too, can they obscure, and this gets us to the listening and feeling part of the therapy. Whatever and however the words are delivered, they will have an impact on me as a therapist. I might feel hopeless, I might feel energized, I might feel pushed away, I might feel demanded of, I might feel pulled to find solutions.

    The influence of the other is what makes any relationship possible or impossible. A therapist is trained to reflect on how those who consult with them affect them. As I try to step into the shoes of the other and then out again, my effort is to hold both those experiences, plus an awareness of my ease or discomfort with what I encounter in the relationship.

    Feelings are the bread and butter of our work in the consulting room. They inform or modify our ideas and they enable us to find an emotional bridge to what can so hurt for the people we are working with. Along with the more commonly thought-about theories and ideas we have about the psyche, they are an essential part of the therapist's toolkit, certainly for me. The talking cure means talking, yes. It also means the therapist is listening, thinking and feeling.

    Many leading AI researchers think that in a matter of decades, artificial intelligence will be able to do not merely some of our jobs, but all of our jobs, forever transforming life on Earth.

    The reason why many regard this as science fiction is that we've traditionally thought of intelligence as something mysterious that can only exist in biological organisms, especially humans. But such an idea is unscientific.

    From my point of view as a physicist and AI researcher, intelligence is simply a certain kind of information-processing performed by elementary particles (基本粒子) moving around, and there is no law of physics that says one can't build machines more intelligent than us in all ways. This suggests that we've only seen the tip of the intelligence iceberg and that there is an amazing potential to unlock the full intelligence that is potential in nature and use it to help humanity.

    If we get it right, the upside is huge. Since everything we love about civilization is the product of intelligence, amplifying (扩大) our own intelligence with AI has the potential to solve tomorrow's toughest problems. For example, why risk our loved ones dying in traffic accidents that self-driving cars could prevent or dying of cancers that AI might help us find cures for? Why not increase productivity through automation (自动化) and use AI to accelerate our research and development of affordable sustainable (可持续的) energy?

    I'm optimistic that we can develop rapidly with advanced AI as long as we win the race between the growing power of our technology and the knowledge with which we manage it. But this requires giving up our outdated concept of learning form mistakes. That helped us win the race with less powerful technology: We messed up with fire and then invented fire extinguishers (灭火器), and we messed up with cars and then invented seat belts. However, it's an awful idea for more powerful technologies, such as nuclear weapons or superintelligent AI—where even a single mistake is unacceptable and we need to get things right the first time.

    One of the hardest parts of planning a trip to Hawaii is deciding which of the major Hawaiian Islands you should visit. Each has its own personality and offers unique adventures and activities.

    Oahu

    Oahu has a bit of everything, packed in 597 square miles. You can hike into thick rainforests, and when you need a break, relax on powdery white sand beaches and stay at luxury resorts.

    Oahu has become a great destination for families. The urban core (核心) of Honolulu and Waikiki has historic sites, museums and bustling (熙熙攘攘的) and nightlife scenes. The island lives up to its nickname of the Gathering Place.

    Maui

    Maui is a great island for honeymooners. The Valley Isle has top-class resorts and golf courses, adjacent (毗邻) to some of the state's best beaches. A large dormant (休眠) volcano in east Maui at sunrise or sunset is a serene experience, as well as driving the Road to Hana, famed for its thundering waterfalls.

    Kauai

    Kauai is the oldest of the main Hawaiian Islands. The island gets a lot of rain, but that's what makes it so lively, you'll come across flowers and plants you've never seen before. For some of the best views on the island, visit Waimea Canyon, known as the Grand Canyon of the Pacific, and the Na Pali coast, boasting some of the world's highest sea cliffs.

    Big Island

    The Big Island is the only Hawaiian island still growing. Witness the power of Pele, the Hawaiian goddess of fire, wind, lightning and volcanoes with a visit to the Hawaii Volcanoes National Park. It's one of the few spots in the world where you can see lava flow. In fact, the Big Island has 10 of the world's sub-climate zones, from the snow-covered mountain of Mauna Kea, green forests of Waipio Valley to stretches of barren desert.

    A new study suggests some language learning can take place during sleep. Researchers from Switzerland's University of Bern say they discovered people were able to learn new language words during deep levels of sleep.

    Much of the earlier research found that memories made when awake were strengthened during sleep. This supported the idea that information learned while awake is replayed and deeply embedded in the sleeping brain.

    The researchers theorized that, if replay during sleep improves the storage of learned information while awake, the processing and storage of new information should also be possible during sleep.

    They carried out experiments on a group of young German­speaking men and women, which centered on periods of deep sleep called "up­states". They identified these slow­wave peaks as the best moments for sleep­learning.

    The researchers observed individuals in a controlled environment during brief periods of sleep. Brain activity was recorded as pairs of words were played for the study subjects. One word in the pair was a real German word. The other was a made­up foreign word. For later identification purposes, the German words chosen were things clearly larger or smaller than a shoebox.

    Each word pair was played four times, with the order of the words changed each time. The word pairs were played at a rhythm that is similar to actual brain activity during deep sleep. The goal was to create a lasting memory link between the false word and the German word that individuals could identify while awake.

    When the subjects woke, they were presented with the false language words­both by sight and sound. They were then asked to guess whether the false word played during sleep represented an object smaller or larger than a shoebox. Results of the study found that a majority of subjects gave more correct answers about the sleep­learned words than would be expected if they had only guessed at random.

    The researchers said they measured increased signals affecting a part of the brain known as the hippocampus. This brain structure is very important for building relational memory during non­sleep periods. The researchers also said memory was best for word pairs presented during slow­wave peaks during sleep.

    The study suggests that memory formation in sleep appears to be caused by the same brain structures that support vocabulary learning while awake. The researchers say more studies are needed to support their findings. However, the experiments do provide new evidence that memories can be formed and vocabulary learning can take place in both conscious and unconscious states.