Why do human beings still risk their lives under ground and doing one of the dirtiest and most dangerous jobs in the world? It is an increasingly urgent question, given the recent mining accidents in Sago, W. Va and Huntington, Utah. A small group of engineers and robotics experts look forward to a day in the not-too-distant future when robots and other technology do most of the dangerous mining work.

    Robotic technology, in particular, holds much promise, McAteer says, especially when it comes to mapping mines and rescuing trapped miners — the special operations of the mining industry.

    One of the first mining robots was developed five years ago at Carnegie Mellon University's Robotics Institute. It was called Groundhog. It used lasers(激光器) to “see” in dark tunnels and map abandoned mines—some of the most dangerous work in the business.

    The latest design is called Cave Crawler. It's a bit smaller than Groundhog, and even more advanced. It can take photos and videos and has more sensors that can detect the presence of dangerous gases. Incredibly, the robot has a real sense of logic. If it comes across an obstacle it gets momentarily confused. It has to think about what to do and where to go next. Sometimes it throws a fit just like a real person.

    The greatest problem, though, is cost. The money of the earliest research project was provided by the government, but that money had dried up, and it's not clear where future money will come from. Partly for that reason, and partly because of advances in safety, mining is not nearly as dangerous as it was in the past. Since 1990, fatalities(致命性) have declined by 67% and injuries by 51% , according to the National Mining Association.

    Some experts predict that robots in mines will serve much of the same function that they do in the automotive industry. The robots do the most boring and dangerous jobs，but won't get rid of the need for human workers.

    America is a mobile society. Friendships between Americans can be close and real, yet disappear soon if situations change. Neither side feels hurt by this. Both may exchange Christmas greetings for a year or two, perhaps a few letters for a while — then no more. If the same two people meet again by chance, even years later, they pick up the friendship. This can be quite difficult for us Chinese to understand, because friendships between us flower more slowly but then may become lifelong feelings, extending (延伸) sometimes deeply into both families.

    Americans are ready to receive us foreigners at their homes, share their holidays, and their home life. They will enjoy welcoming us and be pleased if we accept their hospitality (好客) easily.

    Another difficult point for us Chinese to understand Americans is that although they include us warmly in their personal everyday lives, they don't show their politeness to us if it requires a great deal of time. This is usually the opposite of the practice in our country where we may be generous with our time. Sometimes, we, as hosts, will appear at airports even in the middle of the night to meet a friend. We may take days off to act as guides to our foreign friends. The Americans, however, express their welcome usually at homes, but truly can not manage the time to do a great deal with a visitor outside their daily routine. They will probably expect us to get ourselves from the airport to our own hotel by bus. And they expect that we will phone them from there. Once we arrive at their homes, the welcome will be full, warm and real. We will find ourselves treated hospitably.

    For the Americans, it is often considered more friendly to invite a friend to their homes than to go to restaurants, except for purely business matters. So accept their hospitality at home!

                                                                                                  Chinese International School

    Application Form

    Before an applicant can be invited to take part in an assessment, an application form should be returned to the Admissions Office, and the application fee of HK$1,000 cannot be returned. For overseas applicants wishing to pay in currencies other than HK dollars, the fee is US$145. Checks are also good for payment to “Chinese International School”.

    The application should include

    Applicants' academic report from the last school year.

    A recent passport-sized photo (attached to the application form).

    A copy of the applicant's Hong Kong ID card or a passport showing a valid Hong Kong visa.

    Only for applicants applying under a Corporate Nomination (提名) Right：A company letter confirming the nomination.

    Please note that the application fee is non-refundable. Applicants who would like to re-apply for another academic year are asked to submit a new application and application fee.

    Acceptance

    Applicants will be informed of their acceptance status in writing by postal mail. Initial (最初的) offers for Reception will be sent out from late March once all assessments have been completed.

Some applicants who have been assessed may be held on a reserve list. Acceptances may also be made on a conditional basis among the applicants on the reserve list.

    Applicants who have been assessed but who have not been admitted are welcome to reapply for the next academic year. Please note that such applicants will be asked to submit a new application and application fee.

    Confirmation of Acceptance and Enrollment (录取)

    Once an applicant has been admitted, the applicant family will be asked to confirm acceptance and hold the student's place with immediate payment of the required fees for the Nomination Right (HK$ 500), plus the sum of HK$ 7,500 as the first tuition payment.

    In addition, enrollment will not be considered complete until the following have been received, normally one month before the start of the new school year

    Physical examination results           Tuition (first month)

    Time management is the greatest challenge for me in high school．I have to take good care of my subjects, activities, social life and rest．I was often angry with my family members just because I didn't plan my time well．For example, I might shout at them for troubling me when I was working．And sometimes I might say something bad to them when I missed deadlines, even if it was actually my fault for cramming everything in (把所有的事情堆积起来) at the last minute．

    As time goes by, I realize that time management is very important in our everyday life．The best advice to deal with time management is “break it into bits”．It's really important for you to learn how to break a big project into small, manageable tasks．Then you can work progressively and have a sense of achievement whenever you've done with a small part．

    Another piece of advice is to plan a timetable for yourself．It doesn't have to be the one that you follow completely．It's just there to serve as a guide．You can compare your actual timetable with the planned one to see how well you actually use your time．The final suggestion is to always set deadlines for yourself．

    LastPass Password strength has been a topic about the Internet lately. I have seen lots of clever methods for creating and remembering strong passwords. Some are better than others, but in my opinion, none are enough. Here's the problem: It doesn't matter how strong your passwords are if you use the same one on multiple sites. All it takes is for a site to get hacked, like Gawker media, or even Sony did, and now your super-strong password has been stolen, and every site on which you used that password has been accessed.

    Enter LastPass. It's not the only password manager out there, but I like it the best. You create ONE strong password that you have to memorize and use it to access you LastPass database. The LastPass database is stored online, on LastPass's services. LastPass recognizes the site you're on and automatically logs you in (after, optionally, asking you to re-enter your master password). LastPass also has automatic form fill and automatic password generation. This means that you can have a different, unique, very strong password for every site you log into, but you only have to remember one master password. It's the best of both worlds.

    One argument against LastPass is that if their database is attacked, then all of your sites are in danger, and that's true, but if their entire line of work is keeping that information safe, I'm willing to take that chance. The alternative is rolling dice（掷骰子） or picking phrases to create passwords, writing all of them down on a piece of paper or something, and then having to manually type them in when I go to a site. A terrible mess.

    There is a free version of LastPass, with some additional features unlocked if you pay a $12 a year subscription.

    Shyness May Be Partly Inherited(遗传)

    About 92 million Americans are shy, and according to recent research about half of them inherited the trait.

    The studies were discussed at the American Psychological Convention.

    One study, by Harvard University, was of babies 21- 48 months old. It concluded that these babies had a high heart rate when shown unfamiliar people or different toys.

    Although shyness is not new, it has only recently become of interest to researchers. The first study on the genetic connection was in 1979.

    According to Warren Jones of the University of Tulsa, social relations these days are more complex. "With less ritual(仪式) and more complex situations," he said, "shyness is a national concern."

    Not all shy people are anxious and fearful, according to another study. Evidence shows that only half of shy people are tense, worried, and fearful in social situations.

    Many men use shyness as an excuse for failing in social situations, according to C.R. Snyder of the University of Kansas. "This is not true of females. Perhaps,

    American men are pressured to be assertive(自信的) and successful. So they would rather say they're shy than admit they're incompetent."

    Shy people may do very well socially after the first meeting with someone. In fact, shy people tend to be more stable.

    The psychologists said shyness seems to be cultural. Japan has the highest rating. China and Israel have the lowest rating. The United States rated in the middle.