With brown curly hair and a pair of glasses, 19-year-oldNicholas Allegra from New York state, US, looks like a real-life Harry Potter.However, rather than waving a wand, Nicholas is a "wizard " at"jailbreaking ". This is probably why he ended up with an intern­shipat Apple, a job many of his fellow Brown University students dream of.

Jailbreaking is the process of removing the limitations set byApple on devices with the iOS oper­ating system. These devices include theiPhone, iPod Touch, and iPad. It allows users to gain full access to theoperating system and download additional materials that are unavailable through the official Apple App Store.However, it is estimated that Apple loses $100 million (640million yuan) fromjailbreaking each year.

Nicholas, with a famous nickname "Comex", is theteenage hacker behind the jail-breaking site JailbreakMe. com. The site tellsusers how to unlock their iPhones using software that is not approved by Apple.The jailbreaking software he made has been downloaded millions of times byusers around the world.

Then Forbes magazine suggested in an article that Apple's securityteam might need him as a new intern. It seems that they do. Little more than aday after Steve jobs stepped down as CEO, Apple welcomed Nicholas Allegra.Nicholas wrote on his Twitter on August 26 that " It's been really, reallyfun, but it's also been a while and I've been getting bored. So, the week afternext I will be starting an internship with Apple.

Apple is not the only company embracing the skills ofhackers. Facebook recently hired iPhone jailbreaker George "Geohot"Hotz as a full-time employee.

However, there are still hot debates about whether employinghackers is a wise solution. The word "hacker" has always had a doublemeaning. In the press, "hacker" means someone who breaks intocomputers. They steal from people's bank ac­counts, download sensitiveinformation and attack legal websites. Among computer lovers, it means a coolpro­grammer who can make a computer do whatever he wants.

Hiring a hacker does have its advantages. A talented hacker isprobably quite capable of finding problems and suggesting corrections. On theother hand, because of a hacker's former behavior, many people doubt theirmorals .Can the company trust them with its valuable assets ? And can someonewho is so used to working alone in the dark fit into a new role within acompany?

One thing is for sure- Comex isn't the first member of thehacker community to land the job of his dreams. It's likely that he won't bethe last.

    When mentioning China, what comes to mind? As a country with a history of more than 5000 years, China is rich in civilization and culture. What best represents China?

Confucius (551BC - 479 BC)

    Confucius was a teacher and philosopher from the Spring and Autumn Period of Chinese history. The philosophy of Confucius stresses individual morality including kindness, fairness, politeness, and sincerity. Confucius' principles have a broad basis in common Chinese tradition and belief.

Dragon

    A dragon is a legendary creature, typically with winding or crawling characters. The dragon symbol is frequently used on ancient Chinese emperor's items including chairs or costumes. It is considered a representation of power.

Peking Opera

    Peking Opera is considered the essence of China. As the larger form of Chinese opera, it has many “firsts” in Chinese dramas: the abundance of talents, the number of artists, opera groups and audience.

The Great Wall

    There is an old saying that goes, “He who has never been to the Great Wall is not a true man.” The Great Wall, one of the greatest wonders of the world, is a destination one must see when visiting China.

Traditional Chinese Medicine (TCM)

    Developed in China, TCM has a tradition dating back to more than 2,000 years, including various forms of herbal medicine, cupping, massage, exercise (Qigong), and dietary therapy.

    Of all the things we eat and drink, water is the most important. Not all people realize this, but it is quite true. The human body can live without food for a long time, but two or three days without water usually result in death.

    Many people do not understand how much water the human body needs, but many people do not drink enough, especially in the hot weather. Most people drink when they are thirsty but often need more water after exercises.

    65 to 70 percent of the human body is water. Water is important in several different ways. Most people need five to seven litres of water every day, but we need not drink this amount because a lot comes from the food we have. If we don't have enough water, however, we will feel tired and many become ill. Do you know what the best drink is? Yes, you are right. Cold water!

Should You Become a Full Stack Web Developer?

    Should you become a full stack web developer? What courses should you take to prepare you for the job? Our courses bring you a step-by-step path that will help you become a qualified candidate and teach you everything you need to know to succeed. Read on to discover if it's the right path for you:

    What is a Full Stack Web Developer?

    A full stack web developer is well skilled in both front and back-end web developing. With knowledge of what it means to build applications from start to finish, a full stack developer can plan, manage, and build software with general know-how. A core difference between front and back-end developers is that front-end developers handle building the user interface aspect of a website, while back-end developers deal with internal tasks such as web servers, applications, and databases.

    Combined, they are responsible for building the technology and coding that makes a website function properly. Both skillsets are crucial for being a well-rounded web developer and will give you a leg up when applying for jobs. If you like to learn new concepts and technologies frequently this is an excellent career path for you.

    Demand for Full Stack Web Developers is Growing

    Because of the broad range of skills required to be a full stack web developer, there are fewer candidates applying for positions, leaving more opportunity for qualified candidates. The job outlook for web developers is estimated to grow 13% by 2026, which is faster than the average rate for all occupations. With an impressive resume, full stack web developers can make $87,661 on average.

    Get Started Today

    With the help of the course, you will learn everything you need to know to succeed as a full stack web developer. You can start from any level with little to no previous experience required and track your progress as you go.

    Here's What You'll Learn in the Courses

    Build web applications and develop on both the front-end and back-end stacks

Learn Ruby on Rails, HTML, CSS, and JavaScript

    Develop web applications in Javascript using front-end framework, Angular, and hybrid mobile applications with Apache Cordova

    Design RESTful Ruby on Rails web applications with MongoDB database integration.

    Scientists think that growing garden grass could be the secret to solving our energy needs, and we may soon be able to replace our gasoline with "grassoline".

    The team, including experts from Cardiff University in Wales, has shown that hydrogen can be taken from grass in useful amounts with the help of sunlight and a cheap catalyst(催化剂) —something that speeds up a chemical reaction without being used up.

    It is the first time that this has been shown and it could lead to a sustainable(可持续的) way of making hydrogen, reported Asian News International. This could be an important kind of renewable energy because it is high in energy and it does not give out harmful gases when it is burned.

    Study co-author Michael Bowker said, "This is really a green source of energy. Hydrogen is seen as an important future energy carrier as the world moves from fossil fuels to renewable energy, and our research has shown that even garden grass could be a good way of getting it."

    Cellulose(纤维素), which is a key part of plants and the biopolymer(生物聚合物) found in the largest numbers on the earth, could be a great source of hydrogen.

In its study, the team looked at the possibility of getting hydrogen from cellulose using sunlight and a simple catalyst.

    This is called photocatalysis(光催化作用) and in it, the sunlight starts the catalyst, which then makes cellulose and water into hydrogen. The researchers studied the effectiveness of three metal-based catalysts, of which nickel(镍) especially interested the researchers, as it is a much more common metal than gold and palladium(钯) and it saves more money.

    According to Bowker, producing hydrogen from cellulose using photocatalysis has not been studied in detail. The team's research shows that large amounts of hydrogen can be produced using this method with the help of a bit of sunlight and a cheap catalyst.

    The study shows that it is effective to use real grass taken from a garden. "This is important as it avoids the need to separate and clean up cellulose, which can be both difficult and costly," said Bowker.

    Since so much written language we see today comes from a glowing screen, language has begun to change through our interaction with technology. Social media and the Internet have had a rapid and great effect on the English language, and not necessarily for the better. More and more people have found themselves writing in pieces of words and using unclear acronyms(单词首字母) both in written and spoken language.

    How many times have you typed "LOL" in response to a humorous message? Referred to someone as your "BFF"? Exclaimed, "OMG!" during a particularly shocking event? Social media has affected the words we use in our everyday life. Abbreviations and acronyms commonly known as "text talk" have made their way into both spoken and written language. These are becoming increasingly popular as people struggle for brief expressions to meet word limits on social media like Weibo and Twitter. In addition, the speed of the Internet means language is changing faster than ever. You no longer have to be published through physical and traditional means to bring word trends to public attention.

    Many people believe the overuse of these new terms is a passing trend, and nobody will be using them in just a couple of decades. With the change of language, older terms will surely disappear and fall out of style, and newer and more Internet language will take their place.

    But the Oxford English Dictionary thinks the contrary. In 2011, a lot of Internet terms including, "LOL," "BPB," "OMD," and "BFF" were added to the dictionary, making these acronyms official parts of the English language. According to the dictionary writers, these terms aren't going anywhere anytime soon.

    The words you use in everyday life are a reflection of yourself; this is especially true on the Internet with the lack of interaction in real life. With the Internet and social media rapidly getting popular, soon your words may be all you have left. Make them good ones.