Testing

Thanks to Wei Chen, T.Y. Tsai, and S.F. Lin, I'm able to try my first post.  Wish everyone good health and safe at this chaotic time.  I may delete this test post later after I get familiar with this.

Farewell

I have been writing short essay on our blog each month since 2008. From the very beginning, we had some very interesting communication among our classmates. However, after the pass away of Mark Yang (楊照崑), the blog gradually lost its glamour and luster. Eventually I am the only one who continue to write something interesting each month. It has been more than ten years and I seldom got a single feedback or comment from our classmates. Actually this is not really that important to me as I just try to share my idea while I carry on my daily life. I know some day my thinking and writing ability will reach some state that I no longer be able to do it any more. So I do think it is worthwhile for me to gather my thought, share my own experiences, observations and opinions with our classmates in time and it also serves as one of my personal record in my life. 

As always, life keeps going on and good thing will come to an end naturally. From now on I will shift my focus to some other task that will enrich my life even further.  So I will stop writing the essay each month from now on. Instead I may revisit our blog when something is really significant and meaningful that I feel a need to write and share.  Here I bid the farewell to our classmates and wish every one a very healthy retirement and a very peaceful life.

Do It Yourself

Since I retired from the industry, I gradually bought several pieces of bench tools to help me working in the garage and also for my hobby of fixing things. After a few years, I found that I sort of run out of my space in the garage. A long bench table accommodates Ryobi Band Saw, Table Saw, Miter Saw and other tools like Ryobi Bench Grinder, Circular Saw, ... etc. Most of them are very useful. However, I found that most of the time I use Miter Saw for handy job and Table Saw for heavy duty project. Every once in a while, I used Band Saw. Band Saw is handy and light, but it is hard to keep the cut line straight. Lately I just found some work ideally for Band Saw.

Vacuum Cleaner is found in almost every household, especially if you have some carpet or rug to clean. Some Vacuum Cleaner is a heavy-duty type and heavy to handle for women. Since several years ago, I started using ORECK, and Chris likes it. It is light and easy. However, every once in a while we need to change or replace the dust bag. The first ORECK I used has a different design than the one I use now even though the bags are almost the same. What is the difference? It is the extra two holes on the bag for the new one. Now the new ORECK can't hole the old bag as the bag can't be snapped on the back of the cleaner. I think it is a stupid design Oreck did in the modification. I still have several old bags that I need to work on to fit it on the new cleaner. As a matter of fact, I did also order some new bags (white color) several years ago and forgot about it. I did take a quick look but not in detail to sense it will work on the new cleaner. So I went on to use the current bag and dumped out all the dust, a very tedious and filthy procedure. Anyway, Chris can't wait and used another cleaner to do the job. Meanwhile I spent half hour to punch holes and measured them in details. I finished two bags and they work and I figure at least it is going to do the job for a few months at least. Later on that day, I reviewed the whole thing while I lay on my bed. Usually this is the best time in retrospect and almost the best time to come up with some new or creative idea. I decided to use my Bend Saw I bought long time ago and now sits on the bench in my garage. One day later, after I finishing up my tennis exercise, I came back to water the lawn and put my thought on the work. It took me only 15 minutes to mark and cut the shape I like on the bags. Now there are about eight bags, finished and look clean and nice, ready for the work. I am very happy that I accomplished something very meaningful and useful in daily life. 

This was a Saturday morning, I sat on my cozy beach chair in the backyard, looked at the sky and meditated and suddenly found a spot on the yard which was wet. I immediately noticed that it was the spot of the sprinkler head which I capped long time ago. I was very sure that the same spot got some problem. I dug it out and saw the little leak with water that I could feel with my fingers. This should not be a big task, I use plier to open the cap and use Teflon tape to fix it. I tried twice and turned on the faucet. Alas, it still leaked as that before. I changed the part and used a new adapter and still got the same without success. Suddenly I remember the good old Tite-Seal, Gasket & Joint Sealing Compound. It is a good old tin-can I used sometime for the backup.  I fetched it and tried it as usual. Viola, it was perfect when I turned on the faucet and timer. It is so nice to see it work without the leak. The Tite-Seal works perfectly without any extra tightening process. I am amazed and would like to use it from now on as the first choice, not a backup agent. As to the Teflon tapes, I forget them from now on.

Sometime ago, I found some of my speakers lost their crisp and clean performance. I opened the lid, took a look and found the speaker cone simply detached from the box and hang freely on the air without good support. I went to Amazon website to find new idea. I did get some --- Speaker 8, 10, 12 and 15 inch cone repair kit for the new mount support. It is a foam edge repair replacement kit I found in Amazon. If you are a hi-fi audiophile, you tend to buy some 10 to 15 inch speaker to stress on the bass effect. However, when time goes by, you have played Tchaikovsky's 1812 Overture and turned on big volume on the speaker. To your surprise, you find that the cone got off the frame and your hi-fi is gone. I got rid of two sets of 15" speakers this way more than 10 years ago. However, after I found this foam repair kit, I bought and tried them a few time and I restored my speakers to their top form within no time. I am so happy that not only I save money, but also feel a lot of accomplishment in the process of doing it.

I used to visit hardware store very often while I worked in the industry. Since about five years ago, I seldom visit Home Depot and Orchard Supply as I get most of the tools and parts I need already in my garage. I have to mention Amazon here as sometime I just locate the exact part and order them directly.  The part is delivered directly to my front door.

A Tale of Two Cities

It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, ....

This is the beginning of the novel and influences a lot of people. The cities are London & Paris and the historical background is the French Revolution. Here I limit the scope to something different but the meaning is just as significant as Dickens' novel.

Rochester is a city on the southern shore of Lake Ontario in western New York. It is the third most populous city in New York state, after NY city and Buffalo with a population in the metropolitan area of over 1 million people. Rochester is the site of many important inventions and innovations in consumer products. It has been the birthplace to Kodak, Western Union, Bausch/Lomb and Xerox, which conduct extensive research and manufacture of industrial and consumer products. Until 2010, this metropolitan area was the second-largest regional economy in NY State. 

Kodak was founded by George Eastman and Henry Strong in 1888. During most of the 20th century, Kodak held a dominant position in photographic film. The company creates its famous "Kodak Moment" tagline which entered the common lexicon to describe a personal event that was demanded to be recorded for posterity. The company Kodak and its film business such as Kodachrome and slide photo display were so popular in the 20th century that almost controls the photo market 100%. Kodak began to struggle in the decade of 1990, as the result of the decline in sales of photographic film and its slowness in transitioning to digital photography. As a part of a turnaround strategy, Kodak began to focus on digital photography and digital printing, and attempted to generate revenues through aggressive patent litigation. However, it was apparently too late to recover or reverse the declining trend. In January 2012, Kodak filed for Chapter 11 bankruptcy protection in the US District Court. After that, Kodak announced that it would stop making digital cameras and digital picture frames and focus on the corporate digital imaging market. In 2013, the company emerged from bankruptcy having shed its large legacy liabilities and exited several businesses. Eventually Kodak sold most of its patents and stopped its photographic products, a sad historical event. 

Now there is another city, Rochester in Minnesota. Rochester is a city in southern Minnesota.  It is located almost on the same latitude of Rochester in New York. It's the birthplace of a renowned healthcare organization, the Mayo Clinic. 

On August 21, 1883, a great tornado demolished much of Rochester, leaving 37 dead and approximately 200 injured. As there was no medical facility in the immediate area at the time, Dr. Mayo and his two sons worked together to care for the wounded. Donations of US$60,000 were collected and the Sisters of St. Francis, assisted by Mayo, opened a new facility named St. Marys Hospital in 1889, just one year after Kodak founded. 

The Mayo practice grew and is today among the largest and most well-respected medical facilities in the world. Many notable people from around the world, including many former US presidents, have visited Rochester as patients of the Mayo Clinic. 

It is interesting to compare the two cities with their enterprising business and the impact to the welfare of the cities. First, both Kodak and Mayo are the key and major industry and employer of the cities. Second, they started about the same time in the late last century, 1888 and 1889. Third, both companies flourish for almost about 100 years and achieving a great success in their own industry, photography and health/medicine. Fourth, after 1990, dramatic change happens to Kodak and continues its struggle to survive. Meanwhile, Mayo Clinic fares completely different. It continues its success in the health and medicine area. Mayo Clinic becomes the top and #1 hospital in the country and it has held that position for more than at least five decades.

What seems to be the reason of this dramatic difference between Kodak & Mayo Clinic. Kodak can not be excused from the mistake it did not try to take digital photography seriously and converts its business toward the future technology. But the main point or reason we should consider or not oversee one factor that is the different industry they reside in---one in photography and the other in medicine.

Silicon Valley is the hotbed of the high tech industry. Since 1965, many new electronic companies set up their companies in the valley and developed transistors, integrated circuits, microprocessors, calculators, personal computers, local area networks, ... etc. The new products included instruments used in the medical industry and digital camera and display devices used in photographic industry. Kodak took notes and understood the impact. But it chose to shelf the digital photo camera even it got it first. Until decade of 1990, Kodak finally realized the timing and impact, but it is too late for the conversion. Now we take a look of the case of Mayo Clinic. It is in the medicine field and the structure of the human body never changes. Even the instruments like microscope, MRI scanning machine, ultrasound tracing, photo-acoustic imaging, computer assisted surgical devices and electronic tracing instruments are useful and valuable, Mayo Clinic only needs to purchase them and since it doesn't develop them and so doesn't risk the development on the wrong instruments. This minor difference actually makes the whole difference between the future of Kodak and Mayo Clinic.

貝多芬的浪漫曲

貝多芬的音樂对大部分人的印象是声勢浩大,氣勢磅礡,不可一世,或是狀似吵架,乱成一团,如薩孟武说的一文不值. 其實這都是刻板印象. 如果你專心聽他的音樂,從交响曲,協奏曲,奏鳴曲,再到一些小品或小曲子,你會發現貝多芬不但氣勢豪放,不可一世,但也浪漫温馨,对人內心的描繪和感受,細膩非常,不但讓人感動萬分,而且餘音繞樑,久久不绝. 音樂的影响和感染力量 真是驚人.

在西方音樂界有好多'父级'或'王级'人士,如音樂之父巴哈,交响樂之父海頓,歌謠曲之王修伯尔特等等. 貝多芬卻獨樹一幟,在中國被尊稱'樂聖',就像孔子一樣,被尊稱'至聖先師'. 乃樂譠顶级大師,無遠弗界,高高在上. 貝多芬雖不是交响樂之父,可是大家对具多芬的交响曲都不陌生,豪放不拘,氣壯山河. 這主要是交响曲的第一和第四樂章的曲式讓人有這種感受. 其實注意聽,第二樂章皆是如歌的慢板,非常浪漫,有時温柔纏綿,有时如泣如訴,讓人肝腸寸断,久久不能自己. 

貝多芬有兩首浪漫曲 (Romance), 是精緻的小提琴曲,其曲式和長短幾乎可以適用在小提琴協奏曲的第二樂章. 貝多芬一生僅出版一首 D 大調小提琴協奏曲,傳說他也著手創作另外一首,祇是没有完成,並未發表. 這兩首浪漫曲很可能是要用在這另外一首的協奏曲. 這兩個曲子皆在 1802年左右完成,而且是第二首先完成,可是在1805年才發表. 第一首是 G大調,作品四十,長约七分鐘. 第二首是 F大調,作品五十,長约九分鐘. 在音樂會上,以第二首比較常被演奏. 在台湾高中時就常聽到第二首. 在我的記憶裏,要等到上大學後才偶而聽到這G大調浪漫曲. 可是一聽,久久不能釋懷,太浪漫衷情了. 有愛樂人士猜測為什麼貝多芬要作両首浪漫曲? 有人說大概是第一曲子一定是求愛失敗或表現不夠亮麗,祇好再來一曲. 這樣說有理由,可是理由不夠充分,因為第二首是成於第一首之前,祇是發表較遲而已. 其實更好的理由是樂聖在情場上挫折屢屢累累. 他早有预知,幾乎同時就創作兩首,以備不時之需. 記得以前有部电影 'Immortal Beloved',就描述貝多芬和一位女士 Antonie Brentano 或 Therese Brunswick 的恋情. 也許他先献出第一首 G Major. 幾個星期後,反應也許不太理想,再際出第二首 F Major. 這當然是爱樂者茶餘飯後的趣譚.

G大調音階譜上有一個升記號,和 F大調音階譜上有一個降記號,照理聽來不會差太多,可是奇怪的是第一首浪漫曲聽起來像是一位绅士的深情款款,陌陌求愛的表達. 第二首聽起来卻像是一位淑女的含情陌陌,如泣如訴,絲絲入扣的表達深情衷訴,令人感動萬分. 

在 YouTube,我特別找到一位男士,演奏第一浪漫曲,而第二浪漫曲则由一位著名的女提琴手担任演出. 我觉得最好的欣赏方式是先聆聽和观看提琴手和管弦樂团的合作演奏. 管弦樂规模不大,主要是弦樂和木管樂器---包括一支長笛,两支双簧管和两具低音管. 另外兩管法國號僅短暫出現幾秒鐘. 聽完後再把灯関到極小,不看影幕,光欣赏音符的脈動和傳情的藝術. 這是夜深人靜,最能感受到音符的脈動在你的心靈深處---如泣如訴; 音樂的節奏在你的耳边---迴旋久轉. 然後慢慢地翳去了天聽.

https://www.youtube.com/watch?v=N-YnagvCK5g

(Renaud Capucon)

Renaud Capuçon (born 27 January 1976) is a French classical violinist. 

https://www.youtube.com/watch?v=gnzHWeGgwCU

(Anne Sophie Mutter)

Anne-Sophie Mutter (born 29 June 1963) is a German violinist. 

Linus Pauling & Common Cold

I read the book 'Vitamin C and Common Cold', a little booklet (about 99 pages) in 1970. I was impressed at that time. However, I always think balance diet is a reasonable habit to follow that includes the food supplement like vitamin C and fish oil. In fact, I tried taking 500 mg of vitamin C per day for about a few months and found that it seemed help a little bit but I am not convinced it is all due to vitamin C. Since then, I only take vitamin C when I get cold or just feel that I might get cold. Christine never believes the myth of vitamin C and she doesn't take vitamin C even when she gets cold. My experience is that she and I get flu shot every year and we get the cold almost every year and pattern is about the same, no matter how often and how much vitamin C I take. It is also not true to say that there is no side effect like going to restroom more often for relief. In general, it is not good to kidney if you take too many pills everyday. This is just common sense.

提到 Pauling, 就想起了一些往事,在這 NTUEE64 的 Blog 上面,寫有関他的一些事是很恰當的. CC and AhMo 談了半天,卻沒提到在大一時我們用的'普通化学'課本正是鲍先生的大作. 那時大家沒錢買原版書,居然有中文譯本,倒是一大福音. 我覺得這本書寫得很好,可是葉炳遠教授教得太差,他每堂課一個人在教室內從左走到右,又從右走到左,一边走一边把粉筆剝下来,碎碎片片,一堂課下來,像下了一場雪一樣. 這使我想起以前在動物園看到一隻北極熊在它的圈內,從左到右來回走了半小時,也不累也不管有多少人在看它,人生真有趣. 葉教授最差的是居然有時要來一個小 quiz without notice. 這和教大一國文的黄得時教授一樣,會在班上點名. 那個教授在上課前點名或時而來個小 quiz,一定是自己心虧,怕没人捧他場. 我一直以為葉炳遠是日本學院出身的,可是後來發現在畢業纪念冊上,他寫的是Research Fellow, California Institute of Technology.

當初考联考我把化學系填在电机系之後. 換句話說,如果三民主義考得更差,我現在是 retired chemist. 這也是我常說的'混沌效應',再度發揮作用. 說來可笑,原来还是化学把我'推出來',我不敢說把我'救出來'. 因為我在联考六個科目中,以化学考得最好 (物理考得很差),完全把三民主義的不及格分数補回來. 很多人常說 '人生有緣',這怎应說都不能 apply 到我這個例子. 我有緣在化學上有這麼大兴趣,居然就這樣的無緣上化学系,我是靠'化学'上了'电机系',也因此 miss 了'化学系', 然乎,不然乎? 當然這是比較狹義的解說,光是'電解'這科目,就把电机和化學合為一体,法拉弟就靠這题目出了一陣名而他的 boss Humphrey Davy 更是利用电解 (electrolysis) 發現了一些新元素,包括鈉,鉀, calcium, strontium, barium, magnesium, boron...等等. 你也許會問你既然那麼喜欢化學,為什应不把化學系填在电机系之前, logic? 是有 logic,每個人都不一樣. 我是因為興趣不少,高一念生物就想進生物系,高二念化學就想上化学系,高三念物理就想考物理系,可是要命的是高三最後一學期,物理念到电磁學,當然就想上电机系了. 這些完全不在我的計劃當中,祇能用'水到渠成'來解釋. 當年 1960 联考, 土木系最低分 428, 物理系 427, 电机系 417, 化学系 405, 所以十來分就決定你的未來和一生. 好多人对不能解釋或不能预测的事皆歸上帝,我是以理學出發,以理性看事,大自然的混沌效應是我的歸宿.

話說回来,鲍先生的化學書我很欣賞,來美後,我修了一些材料課程 Metal and Semiconductor, 化學滿管用的,花了不少錢買一本'College Chemistry' by Linus Pauling, 花了一些時日研讀一番,稍表对 Pauling 的一些 respect. 這時念鲍先生的化学和高中的吳冶民或顧均正的教科書不一樣,已经没有小時想的那麼 romantic, 完全是 Scientific and Technical 优先. 時隔多年,既然 CC and AhMo 提起鲍先生,我很恭敬的把這本書從書架上抽出來,再翻一下,果然也查到 Vitamin 一欄,這次發現他在五零年代时祇說 vitamin C (ascorbic acid) 祇要 60 mg/per day 就夠了,和他後來七零年代的 1000-10,000 mg 简直是有天壤之別. 我個人觉得 鲍林和罗素先生皆是一世英才,值得敬佩和學習. 可是在他們年纪上八十後,所作所為開始有點偏差,忘掉他們的本行和最有能力的學區, 而想在別的方面一發長才,殊不知就像 Peter Principle 說的, "You are promoted to the position which you are not competent". 在職場裏大家都知道這 mishap, 可是一些名人,老了腦力開始退化,而他們也許不知,还老當益壯,實在可惜. 不过人生人生,我們應該对他們多多包容,不能对他們要求过高. 人皆如此, Grow Old gracefully and then Fade Away nicely.

Some quotes from Pauling:

(1) Satisfaction of one's curiosity is one of the greatest sources of happiness in life.

(2) You can't have good ideas unless you have lots of ideas. 

(3) Facts are the air of scientists. Without them you can never fly.

I bought the book and engraved my name on it. 

Physical Chemistry/Chemical Physics

Vitamin C required: 60 mg / day

PS: After reading the quotes from Pauling and observing the myth of his vitamin C, we start to realize that the life is indeed a many-splendored thing.

World Cup Soccers

每四年一次的 World Cup Soccers 是足球界的 Olympic 大赛. 世界各國皆组隊參加這盛典,光是电視和大眾傳播,就吸引了成千上萬的观眾,共享這四年一度的国际大賽. 还記得上次 2014 年的大赛,我就在家裏电视机前,恭逢其盛,看了一個多月,大过其瘾. 這次更精彩,在六十五英时的大影幕前,又是 HD, 很多细節看得清清楚楚,實在是人生一大享受.

首先我們看到有32隊進場,這是決赛圈的基本隊伍. 這些隊是已经花了兩三年時間在會外賽中取得资格進決赛圈. 外圍賽 or 會外赛 (qualification) 決定這 32 隊. 這些進赛規矩很複雜,而且每四年都不太一樣. 足球大赛也隨着時代在翻新和汰舊.

這32隊分成8組,每组四隊,每隊和其他三隊各戰一場. 這是分组赛,由積分最高的兩隊晉級'淘汰赛',總共16隊. 淘汰賽從16強賽展開，由小組首名對戰另一小組次名。淘汰赛完畢後祇剩下八隊,也就是八強. 再下去就是半準決賽 (Quarterfinal). 比赛四場下來,衹剩下四隊. 這四隊先作準決賽 (Semifinal),兩個敗隊比赛決定第三名季軍. 最後冠軍戰（決賽, Final) 在最後一天,通常是星期日.

在分组赛中,没有加時或踢十二碼球決定勝负,平手就是平手,每隊各拿一分,赢拿三分. 以積分來決定晉級十六強淘汰赛. 從此以後,没有平手,要加時三十分鐘決定勝负,再不然就踢十二码球,五次決定. 如果再平手,下去就是 sudden death,先贏兩球則晉级.

世足主要球隊以欧洲最多,然後南美洲,非洲和亞洲. 要组織一個像樣的隊伍,能和各洲相抗衡的確不简單,遠東祇有日本和韓國,至於南亞和大洋洲完全空白. 亞洲大国如中國和印度,人口最多,资源最富,也是空白一片. 至於美国則是美式足球太普遍以至於大部分人对 足球 soccer 與趣缺缺,故雖有球隊卻常常進不了三十二強,上不了正式的足球大赛.

這次世足大赛從 6/14 到 6/28 是分组賽,決定了十六強. 從 6/30 到 7/3 擧行首輪淘汰赛,決定了八强. 從 7/6 到 7/7 四場比赛決定四強. 從7/10 到7/15 是決赛,前三名有金銀和銅牌獎. 第四名賦歸,雖無獎牌,但確是第四名,也很光榮.

看完一個月的大赛,有些感想,記下数椿如下:

著名球星没有外圍 的支持, 不太有作用. All stars: Messi, Neymar, Ronaldo, Suarez are not effective and their teams are knocked out of quarterfinal. Most superstars are not effective if they don't get enough support. For example, Suarez without Cavani looks so-so in performance.

低進球率, 尤其是 score (0:0) looks boring. 尤其是双方都採防守戰. 球赛之刺激驚險在於攻擊,速度,傳球,默契,顶球,長射,短射 ...等等. 如果防守太厲害,則攻擊力顯現不出來,整場赛就像很多人在場內遊走西東,不知所云. 不过好隊伍能夠利用長傳和高速配合,把球顶到球门边,這樣製造渾沌 (chaos) 情况,增加進球机會,尤其是精準的'快速頭顶球'實在很難防禦. 好的球隊是很難令人失望的. 

Two different kinds of playing. One like Spain, Japan and Brazil control and process the ball most of the time and then attack. The other is long and quick pass, then attack without a lot of passing around. France, Belgium and Sweden are this kind of teams.

球员犯規太平常,甚至以犯規為決定勝負的利器. 大部分球員都濫用犯规如拉,扯,推,压,擋或整個人壓上別人身上等等惡劣犯规. 這種犯规在 HD 大影幕下很難遁形. 就是在死角地方, 現在有 VAR (Video Assisted Referee) Room,裏面有四位裁判加上幾位硬体工作人员,整個房间就有十來個影幕,至少有十來個 camera 在場上拍攝,隨時可以 replay, 讓場地的裁判 review. 這次世足,幾乎所有 12 碼犯规球皆经过 VAR 的影像來決定. 我觉得這是世足的一大進步,不但犯規減少,而且在判決中減少不必要的纠紛. 还有很多手球是不是真正犯規? 我的经驗是大部分都不是. 没有球員那应笨故意要用手擋球. 但很多时候对方故意把球往你身上踢,你一点也沒辦法,這時裁判都很仔细,不乱判手球,尤其是在肚子以下的手球. 不过當球在门边很近時,幾乎所有手球都該避免. 這次世足就有很多手球決定勝负. 所以在看球赛時,後衛人员常把手往後藏,尤其是當对方往你身上踢時. 

墨西哥和德国之戰很精彩. 墨西哥隊是一匹黑馬,氣勢雄渾,一開場居然就把上屆冠軍的德国隊打得東倒西歪,嘆為观止. 仔细分析,這次德國隊已经不是上次那应平均优秀,祇靠一,二好手还是不夠,而且他们士氣不太振作. 倒是墨西哥幾乎全国總動员,氣勢高昂,真是黑馬一匹,值得嘉獎. 他們這次在十六強中碰到巴西隊, 名將 Neymar 把他們刷下來,真替他們可惜.

十二碼射門決定勝负,是在兩隊平手,加時再赛也平手时,才開始進行. 本來足球赛是 team work, 到最後 team work 没法決定,祇好以刺激的踢十二碼球決定勝負. Is this the best way to decide? No, but this may be the most exciting way to end the match. 也不知何因,大部分人就是喜愛看踢十二碼球,這是 goal keeper 和 kicker 的較勁, mentally and physically. 一般來說,守門员比較虧,因為踢者主發,守门员是 react, 绝对是會慢半拍. 不过好的守门员會先往一边倾然後適時再往另一边撲,也會讓踢者不知所從. 我的经验是凡是踢者踢出強勁球,上下左右皆没関係,祇要精準加上快速勁球,十之八九,進球不疑. 最令人失望和扼腕的是踢者自己把球踢到门外去. 我常想在一次很重要的比赛中,如果一位球员在這重要関頭時把球踢出门外,一定會後悔一輩子. 至於守门员則是另外一種 境域和感受,他被進球是 expected, 稀鬆平常, 但如果他成功擋掉球,則是英雄人物,受大家欢呼和愛戴.