Paying a higher price than usual for a ticket to see a film in 3D is the annoyance of many a cinema-goer's life.

    But there may be a benefit to doing so, as a study has found that 3D films exercise the brain and improve short-term functioning in a similar way to brain-training tests.

    The research found that people who watched a movie in 3D improved cognitive (认知) skills, compared to those who watched it in 2D.

    The research was led by neuroscientist(神经学家) Dr Patrick Fagan from Goldsmiths University in London. More than 100 people took part in the experiment, where participants watched Disney film Big Hero 6 in either standard format or RealD 3D.

    They also carried out a brain-training-style test before and after seeing a section from the film. The test covered memory, reaction times and cognitive function and the results were compared later.

    According to the research, which was carried out in partnership with science group Thrill Laboratory, participants experienced a 23 percent increase in cognitive processing, as well as an 11 percent increase in reaction times.

    Dr Fagan said that the results showed enough of an improvement in brain function to suggest that 3D could play a part in improving brain power in the future.

    "These findings are more significant than you might think," he said. "It is a fact that people are living longer and there is a noticeable decline in cognitive brain function in old age which can worsen future quality of life. There has never been a better time to look at ways to improve brain function. The initial results of this study show that 3D films may potentially play a role in slowing this decline."

    A second part of the experiment involved those watching the film being fitted with headsets that scanned brain activity and this too showed heightened (加强的) activity when watching 3D. According to the results, participants were seven percent more engaged with what they were watching, adding to argument that 3D movies are more like watching real-life—something Professor Brendan Walker from Thrill Laboratory agreed with.

    "As Professor Brendan Walker's test concluded, 3D films are more attractive and heighten the senses — this, in turn, makes the brain run at quicker speeds," Dr Fagan said.

    In the near future, we may be using our eyes to operate our smart-phones and tablets, even when it comes to playing popular games like Fruit Ninja.

    The Gaze Group has been developing eye-controlled computer technology for nearly 20years. But those devices have been firstly designed to help those with disabilities, and are very expensive.

    “After a while, we figured out that probably the best way is to go for a mass-market way,”says Gaze's Sune Alstrup Johansen. “Where everybody would have this available.”

    Johansen and some of his colleagues have formed a new company, the Eye Tribe, which is hoping to develop the technology on a mass commercial level.

    The technology works when combined with the computing device toward the user's face. After making sure of the user's eye movements, the technology is then able to easily find where a person's eyes are moving, and then allow the eyes to control a cursor (光标)

    “Our software can then determine the location of the eyes and know where you're looking on the screen to make sure what you're looking at, ”reads an explanation on the Eye Tribe site.

    There has been a gradual change toward hands-free technology in recent years, particularly in the gaming world. Recently Xbox released the Kinect device, which lets users control their Xbox and play certain games using only their hands, legs and voices. But still, most of these devices have been more of a gimmick than a practical way to use one's hands to control a mobile device. Johansen said a replaceable filter (滤光器) would be a cheap, convenient way for most consumers.

    And even as companies like The Eye Tribe work to create such a product for the average user, making the eye-controlled technology more accessible and less expensive will have similar benefits for physically disabled users.

    For more articles on modem science, please CLICK here.

The Grand Canyon(大峡谷)Helicopter Tour

    You'll discover the natural beauty of the Grand Canyon as your helicopter flies to the west edge，passing over Lake Las Vegas，Lake Mead and the Hoover Dam．During the flight，you can listen to a recorded introduction to the Grand Canyon and its surroundings via headphones．At noon，you'll land for an unforgettable champagne picnic，3，200 feet below the edge．While you share a bottle of champagne，your pilot and guide will be happy to answer any questions you may have．Your flight ends with a low-level pass over the famous Las Vegas Strip．On landing，a comfortable car is waiting to bring you back to your hotel．

    Each helicopter carries a maximum of 6 people including your pilot．For a roomier experience，upgrade your flight to an EC-130 helicopter which provides larger leg room and can accommodate more weight per seat．See Additional Info for details on weight restrictions．

Pricing Information

    Services included：45-minute(approx)flight each way，hotel pickup and drop-off by   limousine，lunch．

    Our price is constantly updated．Click to check pricing & availability on your preferred  travel date．

    Additional Information

    The maximum weight per passenger to ride in an A-Star helicopter is 2751bs．If passengers weigh in between 2751bs and 3001bs，you will be required to upgrade to the    EC-130．

    Pickup is available from selected Las Vegas hotels．You must contact the local travel    agency to fix your pickup time．

    All flight times are approximate and might be influenced by weather conditions．

    Traveler Review

    This is an absolute must do．The view of the Grand Canyon at his height was absolutely amazing! Our pilot was funny，knowledgeable and a great guide．All the staff from booking to check-in and helicopter departure were fantastic．I would recommend this tour to everyone．

A Chinese legend—A pretty maiden is trapped by a dragon. A prince must slay（杀死）the dragon to save her. Then, magically, they fall in love and live happily ever after. Traditional stories tend to emphasize the fantastic, magical side of love. Fate plays matchmaker. Strangers see each other from across a room and instantly know that they are destined to be together.

    It isn't difficult to imagine two strangers coming together and falling in love despite their differences. It suggests that love is challenging, uncertain, and incomprehensible.

    But with more people using online dating services, a very different kind of love has emerged: one that is scientific, convenient, and self-directed. It minimizes risk and provides a choice, like on a menu. There is anonymity（匿名）and the avoidance of immediate rejection. Meeting terms are negotiated online.

    Online dating also allows the setting of preconditions. Computer algorithms（推算） exclude undesirable traits such as the wrong hair color, race, or age. But they also exclude randomness. They reduce the chances of meeting someone different, or someone who could challenge one's romantic ideals. Instead, they find the partner we think we want and exclude everyone else. As a result, we could be missing the opportunity of a lifetime, to meet someone we would never have expected to fall in love with.

    Perhaps this new way represents a more efficient form of romance. Traditional ideas of love may be enchanting - but are they useful? Loneliness and boredom are less exciting than chance encounters, but they represent the more realistic side of love. All too often people have suffered through bad dates and humiliations. If they could just choose what they wanted, wouldn't it save time and reduce suffering? However, by choosing partners based on our preconceived ideas, we may be indulging in our illusions. Instead of letting ourselves grow with someone, love becomes more about looking for ourselves in the other. What if we don't know ourselves as well as we think? Perhaps love isn't about knowing what we want. Perhaps it's about being open to unimagined possibilities.

    Kinder Camp

    This is a week-long camp, Monday through Friday, for children from three years old to those entering first grade in the fall. Early childhood educators guide your child through activities including songs, games, stories and walks in the woods. Daily themes include dirt, furry animals, insects and more! Parents sign up to bring a snack (小吃).Choose from either morning or afternoon sessions, from June 9 to July 1& 2019.

    Kids Camp

    Children explore all day in the natural world. Art, music, cooperative games and hikes through the woods are some of the activities in this fun-filled week. Each grade level has its own camp program especially designed with the campers5 interests in mind.

    Camp takes place Monday through Friday, 9 am to 3 pm.

    Level 1 (completed 1st grade): July 28 to August 1, 2019.

    Level 2 (completed 2nd grade): August 4 to 8 2019.

    Level 3 (completed 3rd grade): August 11 to 15, 2019.

    Please note: children must bring their own lunches.

    Outdoor Expeditions

    Send your child on a traveling adventure. Teenagers will investigate the natural, cultural and historical facts that make their hometown a great city. Activities will include unique field trips and tours.

    Outdoor Expedition: from 9 am to 3 pm, August 11 to 15, 2019.

    Please note: children must bring their own lunches.

    Rainbow Camp

    Campers enjoy all kinds of activities including arts and crafts, music and singing, drama, active games, cooking and a host of special events that go with our theme weeks! Special guests are invited to the camp every week to entertain our campers and may include storytellers, musicians and magicians.

Week-long camps, June 14 to July 18.

    Campers must be at least 4 years old to take part.

    For more information, call Frick Environmental Center at (412) 422-6538.

Hearing aids usually bring to mind images of ugly, ineffective devices mainly worn by the elderly. But this ill repute (恶名) is quickly changing, as they've recently taken a turn thanks to two innovators, Dr. Marco Vietor and Paul Crusius, who now lead the fastest-growing hearing aid company in the world-hear. com.

Hear. com's years of research led to the development of two game-changing hearing aids-the Silk and Styletto. These impressive devices pack cutting-edge (尖端的) technology in designs that are practically invisible. They also use a unique way that has been clinically (临床地) proven to deliver better-than-normal hearing so you can clearly understand speech in any environment. With additional features like Bluetooth and rechargeability, today's hearing aids are attracting even younger customers skilled in tech.

But hear. com knows it's not just about tech and design. They've put an enormous effort into the entire experience to make hearing care more accessible and more affordable. "Everyone should be able to hear well to live well," Crusius says. "And it's very individual. Each person's hearing loss is different and requires a personalized approach to find the best solution."

"We hear with our brains, not our ears. And it takes at least 30 days for our brain to adjust and relearn how to hear again with new hearing aids," Dr. Vietor says. "To guarantee your best outcome with hearing aids, we developed the industry's first 30-day program, Hearing Success Program, so customers have that extra level of care and knowledge to succeed."

And it's working. Hear. com has now helped more than 100,000 customers improve their hearing. Their A+ rating with the Better Business Bureau and 5-star rating on the customer review platform, Trustpilot, speaks for itself.

Hear. com's "customer first" approach also helps drive the company's success, encouraging employees to act like owners and put customers first. "We're investing heavily in shaping our company culture," Crusius says. "Individuals who work at hear. com say they are here to do more than a job. They're helping change lives all around the world."