Scientists have found living organisms(有机体) that could be 50,000 years old recently. The organisms were found in a hot, but beautiful cave system in Naica, Mexico. These ancient life forms can be seen only with a microscope, which proves they are probably microbes(微生物).

    Penelope Boston leads the Astrobiology Institute at NASA, the space agency of the United States. These ancient organisms are able to exist by eating minerals such as iron and manganese. If the findings are confirmed, they will show how microbes can survive in extreme conditions.

    Researchers have been studying ancient microbes for nine years. Forty different kinds of microbes and some viruses were found in the underground area this time. The genetic(基因的) structures of these organisms are different from those of their nearest relatives –viruses. That is similar to that humans are genetically different from mushrooms growing in forest. The caves in Naica are 800 kilometers deep. Before the miners began working in the caves, the area was isolated from the surface and the outside world.

    Some of the caves are as big as the large religious centers built during Europe's Middle Ages. There are crystals(晶体) covering the walls. Scientists must wear special clothing to keep cool. And the clothing keeps the crystals safe from human germs or other damage. The researchers could only work for about 20 minutes at a time before they have to go to a room that is 28 degrees Celsius to cool down.

    NASA officials would not let Boston share her findings with scientific experts until the last week's announcement. So scientists could not say much about the findings. But Norine Noonan, a biologist at the University of South Florida, said she believed them. “Why are we surprised?” Noonan asked, “As a biologist, I would say life on Earth is extremely tough and versatile.” “What's more, these organisms are not the oldest life forms on Earth. Scientists published studies about living microbes that may be 500,000 years old several years ago,” she added.

    In this day and age,it may seem that getting two people with different views together to discuss them leads to a disaster.Just think about what would happen if you sat down and had an open and honest conversation with someone with completely opposing views.Could it bring you closer together?

    However,the Human Library Organization is counting on it.At a Human Library,people volunteer to become "books" and make their experiences open and available."Readers" are encouraged to ask them questions freely,and they'll get honest answers in return.There's no judgment,and no questions are off—limits.

    You won't find unpleasant comments,and you won't lose faith in humanity.At the Human Library,you actually feel letter about the world you live in.You might even make a new friend!

    "The human books consist of people who have been discriminated by society."said Ronni Abergel,the Human Library Organization's founder,who has set out to build a space for conversations that can challenge prejudices through dialogue."The most pleasantly surprising thing about it is how close all the human books become to one another."she said.

    Human Libraries help to remind us there really is more that unites us than divides us.And as events now spread throughout 82 countries,with Human Libraries even set to launch soon in Pakistan and Jordan,you can tell that is a shared feeling.

    "We can spend billions and billions in trying to build up homeland security and our safety,but real safety comes from having positive relations to other groups in your community."said Abergel,"Real safety is not going to come from building walls.It's going to come from reaching out and getting to know each other."

    Robots and humans will soon be living in harmony(和睦).A singing robot is being taught to create jazz with a human in a project.

    Antonio Chella from Italy is working with a Telenoid robot. To start with, the Telenoid will be trained to follow the movements and simple sounds made by a human singer, and to connect music with different emotional states. Chella then plans to see if the robot can use these connections to create music.

    Intelligence is often regarded as the ability to find connections between the existing things. But Chella suggests that a conscious(有意识的) creature should be able to go a step further and introduce new connections that result in the creation of something new.

    Some jazz musicians say that they should have a mental library of musical phrases so that they are able to combine them in new ways. More importantly, however, this combination happens in a state that is similar in a sense to dreaming. Chella wants to copy these states in a machine.

    “This work raises interesting questions about the link between consciousness and music making,” says Philippe Pasquier, a musician and computer scientist. But he is skeptical about whether a robot musician needs a physical body.

    Pasquier argues that the robots are faced with two challenges(挑战). Software that can copy Bach has already been developed. But interpretation（演绎）includes human's different tastes and judgments. “What made the Beatles famous was not so much their works, but the fact that the interpretations of the works were wonderful,” he says.

    It is not yet clear how a robot would go about interpreting music in a new way. But by copying humans and then learning to sing, Chella's robot could provide clues.

    What seems to be important is that human composers often listen to lots of music made by others. So Chella's robot had better listen to those jazz standards first.

    Crossing your legs is an extremely common habit. While you may find it comfortable to sit with one knee crossed over the other, it might be causing health problems that you are not aware of.

    A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason this happens is because the blood in your legs has to work against gravity to be pumped back to your heart, crossing one leg over the other increases resistance, making it even harder for the blood to circulate. You won't feel any immediate effects, but sitting for long periods of time will hurt you forever.

    Crossing your legs can also lead to neck and back pain. Ideally, it's best for our bodies to sit with our feet planted flat, hip width apart, on the floor, but it's not easy to maintain perfect posture all day at the office. When you sit with your legs crossed your hips are in a twisted position, which can cause one of your pelvic bones(骨盆) to rotate. Since your pelvic bone supports your neck and spine（脊椎）, this can cause pressure on your lower and middle back and neck.

    You also might notice that when you sit with your legs crossed for long periods of time your feet and legs get painful or have the feeling of being asleep. This is because when one leg sits on top of the other it causes pressure on the veins（静脉） and nerves in your legs and feet. It can cause numbness and/or temporary paralysis in the legs, ankles, or feet. While the feeling of discomfort may only last a minute or two, repeatedly crossing your legs until they feel numb can cause permanent nerve damage.

    So next time you sit down, try to get yourself in the habit of sitting with both of your feet on the floor. Not only will it help your posture and stability, but it will also save your health in the long run.

WHO'S WHO IN THE ZOO?

    Is it amazing that the WHO'S WHO IN THE ZOO makes it fun for young children to save? With the help of Standard Bank's Kidz APP and the Big Five animal friends, teaching your children about managing their cash has never been more fun. Let the WHO'S WHO IN THE ZOO show your little ones what it means to earn and save money as well as share in the enjoyment of spending their well－earned cash.

Elephant

    As your children use the mobile app to complete various actions—achieving savings goals, completing missions and achieving wishes—here various medals will be rewarded.

    Earned medals are displayed in the elephant habitat as well as locked medals still to be achieved.

Leopard

    Reward your kids with pocket money for completing 'missions': household chores, achievements, etc.

    You can create a mission for your child, or your child can request a new mission. Once created, it must be accepted. The mission needs to be completed by your child and approved by you before you can pay him or her.

Lion

    Help your children create and fulfil wishes. Wish cards and their savings progress can be tracked from your banking app.

    Once their savings goal is reached, lion will inform you of their achievement.

Buffalo

    Kids can request to withdraw cash or purchase airtime and data using their savings.

Rhino

    Rhino shows your child's latest account balance and transactions.

    Download the Standard Bank's Kidz APP from Apple App Store on the phone. Use the comment section to interact with other Standard Bank customers and bank consultants.

    Large gatherings such as weddings and conferences can be socially stressful. Pressure to learn people's names only adds to the stress. A new facial-recognition app could come to the rescue, .but privacy experts recommend going on with caution.

    The app, called SocialRecall, connects names with faces via smartphone cameras and facial recognition, potentially avoiding the need for formal introductions. "It breaks down these social barriers we all have when meting somebody," says Bany Sandrew, who Created the app and tested it at an event attended by about 10000 people.

    After receiving an invitation to download SocialRecall from an event organizer, the user is asked to take two selfies(自拍) and sign in via social median At the event, the app is active within a previously defined geographical area. When a user points his or her phone camera at an attendee's face, the app identifies the individual, displays the person's name, and links to his or her social media profile. To protect privacy, it recognizes only those who have agreed to participate. And the app's creators say it automatically deletes users' data after an event.

    Ann Cavoukian, a privacy expert who runs the Privacy by Design Center of Excellence praises the app's creators for these protective measures. She cautions, however, that when people choose to share their personal information with the app, they should know that "there may be unintended consequences down the road with that information being used in another context that might come back to bite you."

    The start-up has also developed a version of the app for individuals who suffer from prosopagnosia, or "face blindness", a condition that prevents people from recognizing individuals they have met. To use this app, a person first acquires an image of someone's face, from either the smartphone's camera or a photograph, and then tags it with a name. When the camera spots that same face in real life, the previously entered information is displayed. The collected data are stored only on a user's phone, according to the team behind the app.