When it comes to the Internet, people talk about the password most. Actually, it's been under fire for a long time. Research has shown that passwords are not a very good way to protect sensitive information.

    People would use some random characters, numbers and symbols. Furthermore, a unique password would be used for every site or application the user uses. Unfortunately, the longer and more complex passwords become, the more people are likely to forger them. Therefore, they use the same password for every service or application. These are all big no-noes and essentially defeat the purpose of a password.

    Google is trying to kill off passwords on Android devices by introducing the Trust API, which does what simple passwords cannot and gives developers a framework for securing their application using a number of security systems and metrics(衡量标准)on the device. A Trust Score will be generated based on a number of metrics including your device location, face scanning, fingerprints, and the things like your typing speed or the way you speak. Taken one at a time, these metrics are not secure. But taken together, these metrics will help recognize the real “you”.

    The good news is that Google has already been testing this on real world data. Google has proven the Trust API works. Next Google will run tests will some banks to see if the Trust API meets their needs before rolling out the system on Android phones later. It may take another year for apps and popular sites to start using the Trust API.

    This is a pretty exciting change. Passwords have been around for a lone time. Although the security of systems has been improved, the usability of systems hasn't been proved much. Google appears to have the best of them. Maybe that never-ending conflict between security and convenience will be able to take a break once the Trust system comes out.

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    Bandhavgarh National Park in India is best known for its amazing setting, as well as having the highest concentration of tigers in India. In addition to tigers, there are also bears, deer, wolves, birds, etc.

    Location: In Madhya Pradesh state, almost 200 kilometers northeast of Jabalpur. The nearest village is Tala, which is the access point of the park.

    Opening Hours and Safari (游猎) Times

    Safaris operate twice a day, starting at dawn until late morning, and mid afternoon until sunset. The best time to visit the park is early in the morning or after 7 p.m. to spot the animals. The park is closed from July 1 to September 30 due to the monsoon season (季风季节).

    Bandhavgarh Zones

    Bandhavgarh is divided into three main zones: Tala (the park's best zone, with the most tigers), Magdhi (the second best zone to see tigers), and Khitauli (scenic and less visited, although tiger sightings do occur there; particularly good for birding).

    Entry Fees and Charges for Jeep Safaris

    Bandhavgarh has become expensive to visit in recent years. Entry fees have increased since October 2014. When going on a safari, separate fees must be paid for park entry and jeep hire. Entry tickets are priced per vehicle (up to six people). For 2015-16, park entry tickets cost as follows:

    ·Tala Zone: 2,400 rupees for Indians, 4,800 rupees for foreigners. (Up to six people)

    ·Other Zones: 1,200 rupees for Indians, 2,400 rupees for foreigners. (Up to six people)

Jeep Hire

    Expect to pay about 2,200 rupees to hire a jeep, in addition to the entry cost. This can be done at the park entrance. All hotels can arrange jeep hire and tours, but at a higher rate. It's much less trouble though. Besides, unlike many national parks in India, it's possible to take private vehicles into Bandhavgarh.

    It was the men's skating finals of the Winter Olympics when I was 16. Someday I'd be in the Olympics. In fact, it was my dream.

    That night I lay on our living room floor excitedly watching the battle between the Brians: American Brian Boitano facing Brian Orser in Canada. Both of them had been world champions. Both of them deserved to win. Naturally I was for Brian Boitano, a northern Californian like me. We had skated on the same ice. I held my breath in amazement. Boitano performed successfully. The gold medal! I jumped in the air when his score went up.

    But what happened next is what I'll never forget. Brian Boitano sat in front of the camera with his coach, surrounded by a group of journalist. He was talking about his career and his medal, talking to the whole world. A terrible sinking feeling went through me. I could never be in the Olympics, I thought…I could not talk in public like that. Just the idea of a press conference terrified me.

    I loved skating partly because I didn't have to talk. I could express myself with my jump sand dances better. I didn't have to stand up and give a speech like some teachers expected. I could feel the blood rush to my face if I thought a teacher was going to call me. I stared at my shoes. I was sure I'd make a fool of myself.

    The next day I was at the rink (溜冰场) as usual. I was practising a combination of jumps that had once seemed impossible. I worked very hard the next few years—on the ice and especially off. After journalists talked to me and although my heart pounded every time I spoke to them, I got to know them. They became familiar faces. And they got to know me. So when my big moment came four years after Brian's, I was ready.

    Sometimes I think my biggest accomplishment was not winning the gold but talking to the press afterwards. When you do the thing you fear most, you put an end to fear.

    Fear can stop you dead in your tracks. Fear can kill a dream. What are you afraid of? What scares you more than anything else? This year, walk right up to it and conquer it, step by step.

    According to a recent study published in Journal of Consumer Research, many people believe that healthy food must be more expensive than unhealthy food. In fact, the study's researchers found that a high price tag will even convince consumers that a certain food is healthful.

    According to Rebecca Reczek, coauthor of the study, the purpose of the study was to examine a popular belief. Sometimes the belief can be true: Organic produce and wild caught seafood typically cost more money. But other times, the nutritional value of food ranks all the same.

    In one experiment, Reczek's team gave a group of participants a new food product called "granola bites". Some participants were told the product was very healthy. Other participants were told the bites had little nutritional value. Participants who were told the granola bites were good for them rated the snack as more expensive than the participants who thought the bites were unhealthy.

    In another experiment, participants were given a health food bar labeled as "the healthiest protein bar on the planet". Some participants were told the bar cost just D|S0.99, others were told the bar was D|S4. And here's what happened: The people who were given the "cheaper" bar needed to read a lot more reviews about the product when it was priced at a lower price point in order to trust that it was healthy.

    The idea that we all believe healthy food needs to be more expensive works against us. All food companies need to do is push up the price to convince us.

But Reczek said, "When we shop, we don't have to be led astray. We can compare nutrition labels and we can do research before we go to the grocery store. We can use facts rather than our intuition (直觉)"．

Having a great collection of books at home doesn't really mean that you are a person who has a passion for literature and reading. It can be a family inheritance (继承) or it can be just to impress people around you about the fact that you are a person of culture. On the other hand, there are many persons who cannot afford to buy books, because some of them are quite expensive, but they usually go to libraries and spend hours reading something that interests them a lot, or just borrow books to read at home.

From my point of view, literature is very important in our lives from several points of view. For example, reading is a means of gaining culture and enriching our knowledge in different areas of activities. It can help us have a great imagination and it makes things easier when it comes to making compositions on different themes. It gives you the possibility to speak about science, even if you don't work in this field, or you can express your opinion about a political aspect, just because you have read something connected to that.

Secondly, literature offers us the possibility to enter the world of imagination, and to leave apart the real one for a couple of hours. We come to meet kings and queens many years ago, dream in the world of the rich or imagine how life will be in the future. Sometimes, we identify ourselves with the characters in the stories we read and they can give us some clues to solve our problems and how to react in certain circumstances.

To conclude, I would like to say that literature is the perfect means to enrich our culture, to express correctly and have a rich vocabulary, to be able to interfere (干涉) in conversations in different fields of interest and to really be considered an erudite person.

If you've ever seen a sparrow steal your dog food or a crow open a garbage bag, you get a sense of that some birds have learned to take advantage of new feeding opportunities—a clear sign of their intelligence. Scientists have long wondered why certain species of birds are more innovative than others, and whether these capacities stem from larger brains or from a greater number of neurons（神经元） in specific areas of the brain.

It turns out that it's a bit of both, according to a recent study by an international team that included members from McGill University published in Nature Ecology and Evolution.

The researchers used a new technique to estimate the number of neurons in a specific part of the brain called the pallium in 111 bird species. The pallium in birds is equal to the human cerebral cortex（大脑皮层）, which is involved in memory, learning, reasoning, and problem-solving, among other things. When these estimates about neuron numbers in the pallium were combined with information about over 4,000 feeding innovations, the team found that the species with the higher numbers of neurons in the pallium were also likely to be the most innovative.

"The amount of time chicks spend in the nest as their brains develop might also play acrucial role in the evolution of intelligence," says McGill University Emeritus Professor Louis Lefebvre who spent more than 20 years gathering examples of feeding innovations. "Larger species of crows and parrots, which are known for their intelligence, spend longer in the nest, which allows more time for the brain to grow and accumulate pallial neurons."

The results of the study help to deal with previously opposed views of the evolution and significance of brain size and show how a life-history perspective helps to understand the evolution of cognition.