You can't always predict a heavy rain or remember your umbrella. But designer Mikhail Belyaev doesn't think that forgetting to check the weather forecast before heading out should result in you getting wet. That's why he created lampbrella, a lamp post with its own rain- sensing umbrella.

    The designer says he come up with the idea after watching people get wet on streets in Russia. “once, I was driving on a central Saint Petersburg street and saw the street lamps lighting up people trying to hide from the rain. I thought it would be appropriate to have a canopy (伞蓬) built into a street lamp.” he said.

    The lampbrella is a standard-looking street lamp fitted with an umbrella canopy. It has a built-in electric motor which can open or close the umbrella on demand. Sensors (传感器) then ensure that the umbrella offers pedestrians shelter whenever it starts raining.

In addition to the rain sensor, there's also a 360° motion sensor on the fiberglass street lamp which detects whether anyone is using the lampbrella. After three minutes of not being used the canopy is closed.

     According to the designer, the lampbrella would move at a relatively low speed, so as not to cause harm to the pedestrians. Besides, it would be grounded to protect from possible lighting strike. Each lampbrella would offer enough shelter for several people. Being installed (安装) at 2 meters off the ground, it would only be a danger for the tallest of pedestrians.

      While there are no plans to take lampbrella into production, Belyaev says he recently introduced his creation to one Moscow Department, and insists his creation could be installed on any street where a lot of people walk but there are no canopies to provide shelter.

    We can video chat with astronauts aboard the International Space Station and watch live footage from the frozen heights of Everest. But communicating with a submarine (潜艇）or a diver is not so easy. The lack of practical methods for sharing data between underwater and airborne devices has long been a frustration for scientists. The difficulty stems from the fact that radio signals work perfectly in air travel but poorly in water. Sonar (声呐）signals used by underwater sensors reflect off the surface of the water rather than reaching the air.

    Now, researchers at MIT have developed a method with the potential to revolutionize underwater communication. "What we've shown is that it's actually feasible to communicate from underwater to the air," says Fadel Adib, a professor at MJT's Media Lab, who led the research.

    The MIT researchers designed a system that uses an underwater machine to send sonar signals to the surface, making vibrations (震动)corresponding to the ls and Os of the data. A surface receiver then reads and decodes these tiny vibrations. The researchers call the system TARF. It has any number of potential real-world uses, Adib says. It could be used to find downed planes underwater by reading signals from sonar devices in a plane's black box and it could allow submarines to communicate with the surface.

    Right now the technology is low-resolution. The initial study was conducted in the MIT swimming pool at maximum depths of around 11 or 12 feet. The next steps for the researchers are to see if TARF is workable at much greater depths and under varying conditions—high waves, storms, schools of fish. They also want to see if they can make the technology work in the other direction— air to water.

    If the technology proves successful in real-world conditions, expect "texting while diving" to be the latest underwater fashion.

    My First Marathon

    Three weeks before my first marathon, one of my ankles was injured and this meant not running for two weeks, leaving me only one week to train. Yet, I was determined to go ahead.

    I remember back to my 7th year in school. In my first P.E. class, the teacher required us to run laps and then hit a softball. My performance was really terrible. He later informed me that I was "not athletic".

    The idea that I was "not athletic" stuck with me for years. When I started running in my 30s, I realized running was a battle against myself, not about competition or whether or not I was athletic. It was all about the battle against my own body and mind. A test of wills!

    The night before my marathon, I dreamt that I couldn't even find the finish line. I woke up sweating and nervous, but I was ready to prove something to myself.

Shortly after crossing the start line, my shoe laces became untied. So I stopped to readjust. Not the start I wanted!

    At mile 3, I passed a sign: "GO FOR IT, RUNNERS!"

    By mile 17, I became out of breath and the once injured ankle hurt badly. Despite the pain, I stayed the course walking a bit and then running again.

    By mile 21, I was starving!

    As I approached mile 23, I could see my wife waving a sign. She is my biggest fan. She never minded the alarm clock sounding at 4 a.m. or questioned my expenses on running.

    I was one of the final runners to finish. But I finished! And I got a medal. In fact, I got the same medal as the one that the guy who came in first place had.

Determined to be myself and move forward, free of shame and worldly labels(世俗标签), I can now call myself a "marathon winner".

    When he was a kid, Alex Vardakostas began working in the grill (烧烤店)alongside adult employees. He estimates he has cooked 50,000 burgers (汉堡包).

    Now, Vardakostas co-owns a burger joint called Creator, in San Francisco, California. But he doesn't stand over a grill flipping burgers, and neither do his employees. At Creator, burgers are cooked and assembled entirely by machine. And because it costs less to maintain the machine than to pay a kitchen's worth of employees, burgers cost less.

    Creator is just one example of a growing phenomenon: Automation is taking over more and more jobs. That means work is done by machines or computers instead of people.

    According to a report from McKinsey Global Institute, about 800 million people could be forced out of their jobs by 2030. McKinsey predicts that as technology improves, some tasks will be done more quickly or cheaply by machine, so businesses will install robots or computer Programs to perform them.

    Some jobs are more likely to be automated than others. Machines can do jobs that have three characteristics: They are routine, repetitive, and predictable. Some of these jobs pay low wages and require little education. But others pay well and demand an advanced college degree. Taxi drivers, cashiers, lawyers, and doctors all perform some tasks that can be done by machines.

    So what jobs are safe from automation? Answers include coming up with new ideas or work that involves interacting with other people and building relationships. Jobs in engineering, science, the arts, therapy, and nursing are examples.

    At Creator, Vardakostas hired people to do just that kind of work. Instead of repetitive burger prepping, workers interact with customers and advise them on flavor pairings, like mushroom sauce with pickles and onion jam. "In our world at Creator, all the work is creative and social," Vardakostas says. "And I think that is what we're going to see more of the future."

    What is eBay? The simple answer is that it is a global trading platform(贸易平台) where nearly anyone can trade practically anything. People can sell and buy all kinds of products and goods, including cars, movies and DVDs, sporting goods, travel tickets, musical instruments, clothes and shoes—the list goes on and on.

    The idea came from Peter Omidyar, who was born in Paris and moved to Washington when he was still a child. At high school, he became very interested in computer programming and after graduating from Tufts University in 1988, he worked for the next few years as a computer engineer. In his free time he started eBay as a kind of hobby, at first offering the service free by word of mouth. By 1996 there was so much traffic on the website that he had to upgrade(升级) and he began charging a fee to members. Joined by a friend, Peter Skill, and in 1998 by his capable CEO, Meg Whitman, he has never looked back. EBay has gone from strength to strength. It is now one of the ten most visited online shopping websites on the Internet.

    eBay sells connections, not goods, putting buyer and seller into contact with each other. All you have to do is make an e-photo, write a description, fill out a sales form and you are in business: the world is your market place. Of course for each item sold eBay gets a percentage and that is great deal of money. Every day there are more than sixteen million items listed on eBay and eighty percent of the items are sold.

    Jane Austen is loved mainly as a charming guide to fashionable life in the Regency period (英国摄政时期). She is admired for describing a world of elegant houses, dances, servants and fashionable young men driving barouches (四轮四座大马车). But her own vision of her task was completely different. She was an ambitious and strict moralist. She was highly conscious of human failings and she had a deep desire to make people nicer: less selfish, more reasonable and more sensitive to the needs of others.

    In Pride and Prejudice, Mr. Darcy and Elizabeth Bonnet start off heartily disliking each other and then, gradually realize they are in love. They make one of the great romantic couples. He is handsome, rich and well connected; she is pretty, smart and lively. But why actually are they right for one another?

    Jane Austen is very clear. It's for a reason we tend not to think of very much today: It is because each can educate and improve the other. When Mr. Darcy arrives in the neighborhood, he feels "superior" to everyone else, because he has more money and higher status. At a key moment, Elizabeth condemns his arrogance (自大) and pride to his face. It sounds offensive in the extreme, but later he admits that this was just what he needed.

    Mostly, we tend to think of love as liking someone for who they already are, and of total acceptance. But the person who is right for us, Austen is saying, is not simply someone who makes us feel relaxed or comfortable; they got to be able to help us overcome our failings and become more mature, more honest and kinder—and we need to do something similar for them.