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.

    The Kentucky Derby is a horse race held annually in Louisville, Kentucky, United States on the first Saturday in May. Here are some helpful suggestions for your first trip to the Kentucky Derby!

Fashion vs. Comfort

    In many ways, the Kentucky Derby is the world's largest and most entertaining fashion show, with impressive hats and clothes! You'll be on your feet and walking a lot, so pack a pair of comfortable shoes to change into during the day.

Your Tickets

    You MUST have your tickets in order to get through the gates. Please note that the only place that has official permission to buy and resell Kentucky Derby tickets is the Kentucky Derby Ticket Exchange. Law enforcement officials will be on site to prevent people from selling tickets at a much higher price.

    If you have questions about your tickets in advance of the Derby, please call Churchill Downs customer service at 502-636-4400.

Finding Help

    With over 14,000 employees throughout the track on Derby day, you aren't too far from someone who can help. If you can't find an employee to help you, please text the word HORSE to 69050 and you will be placed in touch with Guest Services.

Safety & Security

    For the safety of all our guests, your bag may be searched by security. A number of items are forbidden from entering the facility(场所).

    For security and crowd control reasons, you can't enter the facility again after you get out. This means that you will not be able to go outside the gates to fetch items from your car once you have passed through security. Please be sure to bring everything you need.

    Recently, people in US education have gotten extremely worried because a new report has shown that American students have a math problem.

    The 2015 Program for International Student Assessment(评估)(PISA) shows math scores in the US getting lower and no improvement in science or reading. PISA tests 15-year-olds from different countries and regions in their math, science and reading skills. About 540, 000 students from 72 countries and regions took part in the assessment in 2015.

    US scores in reading and science were about the same as three years ago, leaving Americans near the middle of the bigger group. But the situation in math is much more worrying. The US average score was 470, below the OECD(经合组织)test average of 490, meaning the US was No. 40 among the 72 countries and areas. It was 12 points lower than in 2012 and 18 points lower than in 2009. So, what is going on with American students' math skills?

    One reason may be that the US does not teach math in enough depth. "Students are often good at answering the first part of a problem in the United States, "said Andreas Schleicher, director of education and skills at OECD. "But as soon as students have to go deeper and answer the more complicated part of a problem, they have difficulties. "In comparison, many high-performing countries and regions in math teach a lot less but focus in much greater depth,  especially when you look at East Asia, Japan and Singapore, according to Schleicher.

    Another reason may be the fact that many people in the US are unwilling to travel to foreign countries to learn better teaching practices. "One of our biggest challenges in the US is that the teachers are not going out and seeing what high-performing countries do differently, "said Wendy Kopp, who started Teach for America, in a news program.

    An autonomous vehicle designed for making local commerce deliveries was unveiled by Nuro. The vehicle is about the height of an SW but far narrower than a typical car. The electric car features four exterior compartments (暗格) — two on each side — to hold separate deliveries. Each compartment can be tailored to a specific use, such as cooking a pizza or refrigerating a package.

    “We can use self-driving technology to deliver anything, anytime, anywhere for basically all local goods and services,” Nuro co-founder Dave Ferguson said. “Consumers used to be okay with two-week paid shipping. It became two-week free delivery, followed by one week, two days, and the same day. Now same-day delivery isn't fast enough for some customers.”

    Nuro isn't alone in building robots for local commerce deliveries. Earlier this month, Toyota, a Japanese car company, unveiled a concept vehicle that could be used for package delivery. A handful of startups — including Starship Technologies, Marble and Dispatch — are testing small robots for deliveries on sidewalks.

    Nuro's vehicle will likely face legal hurdles. Fully autonomous vehicles without a test driver aren't legal in California today, and many companies have shifted testing to states where regulators are more welcoming of autonomous vehicles, such as Arizona.

    Nuro expects to face fewer challenges because it doesn't carry passengers. Nuro's narrow size may also be helpful when navigating streets and avoiding pedestrians. The vehicle isn't equipped with any special features to communicate with pedestrians or other road users. Some companies have tested and patented solutions such as digital screens that signal the car's next move. Ferguson said his team conducted studies and found that such techniques could confuse people. Nuro believes it's better to make sure the car performs predictably, so that human drivers know what to expect from it.

    “We feel by creating this new technology that's going to enable this last mile delivery, we're going to be creating new markets and doing things that previously weren't possible,” Ferguson said. “This is not swapping out Jobs with robots. It's creating new markets. There will definitely be new employment opportunities.”

    A billionaire has recently made one of the biggest charitable（慈善的）donations to a university in China's history. Chen Tianqiao donated $115 million to the California Institute of Technology (Caltech) to help advanced brain research. The donation will be spent deepening the understanding of how the brain works. Chen has been interested in brain research, believing it can shape the industries such as artificial intelligence and virtual reality. However, this huge donation has caused heated discussions among Chinese scholars and internet users alike.

    Many criticized him for choosing to give money to a foreign university rather than home institutes for brain research, which are developing fast and are on track to catch up with the US in just a few years. Rao Yi, a biologist at Peking University, even said the donation was a typical mistake.

    Others, however, support his choice. They believe Caltech is a more reasonable choice compared with Chinese research institutions. Caltech has a long history and has taken a leading position in biology, and therefore it produces more efficient results. In addition, the results of the research benefit not only the American people, but also the rest of the world.

    A similar controversial case started two years ago when Pan Shiyi, chairman of SOHO China, donated $15 million to Harvard University to help disadvantaged Chinese students.

    Many believe that China is still behind in the management and use of donated money, and that as a result, Chinese charity donators are looking abroad. In comparison, Western countries like the US, which have a long history of donating money, have well-developed systems that use money efficiently. They can also provide full access for donors who want to track the use of the money. To get more donations, Chinese universities should be braver and more honest. They need self-reflection, rather than envy.

Music

    Opera at Music Hall： 1243 Elm Street. The season runs June through August, with additional performances in March and September. The Opera honors Enjoy the Arts membership discounts. Phone: 241 -2742. http://www.cityopera.com

    Chamber Orchestra： The Orchestra plays at Memorial Hall at 106 Elm Street, which offers several conceits from March through June. Call 723-1182 for more information. http://www.chamberorch.com.

    Symphony Orchestra： At Music Hall and Riverbend. For ticket sales, call 381-3300. Regular season runs September through May at Music Hall in summer al Riverbend. http://www.symphony.org/honie.asp.

    College Conservatory Of Music (CCM): Performances are on the main campus of the university, usually at Patricia Cobbett Theater. CCM organizes a variety of events, including performances by the well-known LaSalle Quarter, CMM's Philharmonic Orchesira, and various groups of musicians presenting Baroque through modem music. Students with I.D. cards can attend the events for free. A free schedule of events for each term is available by calling the box office at 556-4183. http://www.ccm. uc.edu/events/calendar.

    Rivebent Music Theater.6295 Kellogg Ave« Large outdoor theater with the closest seats under cover (price difference ). Big name shows all summer long! Phone: 232-6220. http://www.riverbendmusic.com