Patricia Blues, 29, has a new aim in life: to keep drivers' hands on their steering wheels and off their cell phones. On November 2, 2007, Blues lived through a horrible experience. A motorist dialing a cell phone drove through a stop sign at 45 miles per hour and ran into the side of Blues' car. Blues' 2-year-old daughter was killed immediately in the crash.

    Blues has since devoted her time top pushing for laws that would prevent this type of tragedy from happening again.

    Cell phones are not the only distractions（分神） that cause accidents. Eating, changing CDs, reading maps, talking to passengers, and just reaching for an object on the floor can be dangerous. Therefore, the emphasis should be on educating drivers to avoid all distractions. However, talking on cell phones might be easier to regulate than eating or changing music. At least 34 states have already passed laws to restrict cell phone use in moving cars. No state has banned it yet, but several US. cities. Worldwide, 13 nations, including Australia, England, Germany, Japan and China have banned drivers' use of cell phones in moving cars.

    To date, no scientific evidence has been published showing that talking on the phone affects driving safety. But according to a test by some high school students, “driving while on the phone does affect safety and probably shouldn't be done”.

    The Coolest Inventions

    An Oceans Vacuum(吸尘器)

    There's a collection of plastic trash in the middle of the Pacific Ocean. It's bigger than Texas and growing. The way to clean it up now is to catch it with nets. That is both costly and slow. Instead, the Ocean Cleanup Project proposes a 62-mile-long floating barrier that would use natural currents to trap trash. If next year's trials succeed, a full cleanup operation would aim to start in 2020. It could reduce the trash by 42% over 10 years.

    Easy-On Shoes

    In 2012, Matthew Walzer, a high school student with a disability, sent a note to Nike. “My dream is to go to college,” he wrote, “without having to worry about someone coming to tie my shoes every day.” Nike assigned a design team to the challenge. This year, they came out with their solution: the FlyEase. The basketball shoe can be fastened with one hand. A pair of Nike FlyEase shoes sells for $130.

    An Airport for Drones (无人机)

    As Amazon, Google, and others get ready for drone delivery service, there is one big question: What kinds of home bases will their drones have? Rwanda, in Africa, may have the answer. There, workers will soon start work on three “drone ports”. The goals is to make it easier to transport food, medical supplies, electronics, and other goods through the hilly countryside. Construction is set to be completed in 2020.

    Summer heat can be dangerous, and heat leads to tragedy far too often. According to kidsandcars, org, an average of 37 young children per year die of car heat in the US, when they are accidentally left in a hot vehicle.

    For Bishop Curry, a fifth grader from McKinney, Texas, one such incident hit close to home. A six-month-old baby from his neighborhood died after hours in a hot car. After hearing about her death, Curry decided that something needed to be done. Young Curry, who turned 11 this year, has always had a knack for inventing things, and he drew up a sketch(草图) of a device he called "Oasis."

    The device would attach to car seats and watch the temperature inside the car. If it reached a certain temperature in the car, and the device sensed a child in the car seat, it would begin to circulate cool air. Curry also designs the device using GPS and Wi-Fi technology, which would alarm the child's parents and, if there was no response from them, the police.

    Curry's father believes that the invention has potential. "The cool thing about Bishop's thinking is none of this technology is new," he said. "We feel like the way he's thinking and combining all these technologies will get to production faster." His father even introduced the device to Toyota, where he works as an engineer. The company was so impressed that they sent Curry and his father to a car safety conference in Michigan.

    In January, Curry's father launched a campaign for the invention. They hope to raise money to finalize the patent, build models, and find a manufacturer. Their goal was $20,000, but so many people believed in Oasis' potential that they have raised more than twice that--over $46,000.

    Curry's father remembers the first time he saw his son's sketch. "I was so proud of him for thinking of a solution," he said. "We always just complain about things and rarely offer solutions."

    There's a new frontier in 3D printing that's beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. And the industry isn't stopping there.

     Food production

    With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake. Not everybody can do that — it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to "re-create forms and pieces" of food that are "exactly the same," freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.

    Sustainability(可持续性)

    The global population is expected to grow to 9.6 billion by 2050, and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels. Sustainability is becoming a necessity. 3D food printing could probably contribute to the solution. Some experts believe printers could use hydrocolloids (水解胶体) from plentiful renewables like algae(藻类) and grass to replace the familiar ingredients(烹饪原料). 3D printing can reduce fuel use and emissions. Grocery stores of the future might stock "food" that lasts years on end, freeing up shelf space and reducing transportation and storage requirements.

    Nutrition

    Future 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, "Food printing could allow consumers to print food with customized nutritional content, like vitamins. So instead of eating a piece of yesterday's bread from the supermarket, you'd eat something baked just for you on demand."

    Challenges

    Despite recent advancements in 3D food printing, the industry has many challenges to overcome. Currently, most ingredients must be changed to a paste(糊状物) before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad. Some experts are skeptical about 3D food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.

Not everyone is excited about birthdays. There are many people out there who never feel excited about it. {#blank#}1{#/blank#}Going to office, wrestling with crowded public transport, having lunch in set duration, everything goes with the normal routine.

{#blank#}2{#/blank#} What exactly makes them feel nothing special on the day of their bith?

This may be common in those who are in their 50's, 60's, the 70's... For some people in this age, life becomes a journey that is going on and on and on at a faster pace. They feel like losing control of their time and every passing year doubles the fear of dying soon. This is not good as it is negative.{#blank#}3{#/blank#}

Some people do not like to come to the notice of others due to any possible reason on this earth. You may feel amazed about this nature. But they like to remain as part of the crowd. {#blank#}4{#/blank#} Because they bring people in sudden attention. They prefer to remain silent and follow the normal routine of daily life.

Here comes another part of the population that thinks it is a waste of money. {#blank#}5{#/blank#}This also includes people who are in debt and have multiple obligations. For instance, mostly a mess of short-term debts contributes to act strangely and expense restriction.

Instead of aiming for a perfect day, set realistic expectations for your birthday.

A. They don't like it either.

B. But they can't help doing so.

C. Birthdays are contrary to this feeling.

D. What makes them act so indifferent after all?

E. Everyone wants to know the plans of the birthday.

F. They do not spend on those who do not help earn money.

G. Nothing in their routine changes in the name of celebration.

Scientists and spiritual teachers alike agree that the simple act of smiling can transform you and the world around you.It can make us appear more attractive to others. {#blank#}1{#/blank#} So before you read on,slap a nice,genuine smile on that face of yours.

How Smiling Affects Your Brain

The act of smiling activates neural messaging that benefits your health and happiness.For starters,smiling activates the release of neuropeptides(神经肽) that work toward fighting off stress.The feel-good neurotransmitters(神经介质) are all released when a smile flashes across your face as well. {#blank#}2{#/blank#}

How Smiling Affects Your Body

You're actually better-looking when you smile.A study published in the journal Neuropsychologia reported that seeing an attractive,smiling face activates the region in your brain that processes sensory rewards. {#blank#}3{#/blank#} It also explains the 2011 findings by researchers at the Face Research Laboratory.They found that both men and women were more attracted to images of people who made eye contact and smiled than those who did not.

{#blank#}4{#/blank#}

Did you know that your smile is actually contagious(传染性的)?In a Swedish study,subjects were shown pictures of several emotions:joy,anger and surprise.When the picture of someone's smiling was presented,the researchers asked the subjects to frown.Instead,they found that the facial expressions went directly to what subjects saw. {#blank#}5{#/blank#} If they don't,they're making a conscious effort not to.

A.How Smiling Affects Those Around You

B.Each time you smile,you throw a little feel-good party in your brain.

C.So if you're smiling at someone,it's likely that they can't help but smile back.

D.And it can even lengthen our lives.

E.How Smiling Affects Your Facial Expressions

F.They not only relax your body,but also lower your heart rate and blood pressure.

G.This suggests that when you view a person smiling,you actually feel rewarded.