练英文

练英文有两招:

  • 找个英文读物,最好是知名新闻刊物,随便选一篇,从头读到尾,有生字查了后写在张纸上。读完后,回头再读开头两段。然后,不看它也不用背,自己写一遍,比较一下。 这时,把生字表拿来再看一遍,看完就可以丢了它。
  • 找条英文歌,下载歌词。一面听,一面跟着唱一遍。能跟着唱完就行。

这两招,每周练一遍。不会超过一小时。三月必有成效。一生都能受益。别去上英语会话班。浪费钱。

Posted in China, Management Thoughts | 1 Comment

Why Sail Boat Moves?

Many civilizations have independently discovered ways to optimize for the wind power. They all learned to sail in all directions, regardless of which way the wind is blowing. There are really only two tricks: the shape of the sail and the keel under the water.

Sails are not a flat surface, it is curved. When the wind is behind the boat, the curved surface captures the wind like a bag and the boat get pushed forward. When the wind blows from the side, the wind on the convex side must travel faster than the concave side. The difference in wind speeds creates a pressure differential: the Bernoulli effect. It is like the wind is pushing and pulling the boat at the same time.

The keel counters the side-way force (leeway) under the water. It works exactly the same, just with water instead of the wind. When the wind pushes the boat to the side, the water, through the keel, pushes back. The result is the boat moving straight. Magic of Physics!

Before I took lessons, I thought “running” (sailing downwind) is what sailing is all about. In fact, the fastest direction is when the wind is blowing from the side (beam reach). At that moment, it feels like the boat is flying. The most enjoyable direction is probably when the wind is blowing against you from an angle (close reach). You feel the wind blowing across your face and there is very little work to get the boat moving.

I can see this craft takes a life-time to master and also why it is addictive.

Posted in Peek into my mind, Sailing, Witness to my life | Tagged | Leave a comment

The Cell Phone Economy

While iPhone5 basks in spotlight, I got myself a new Android. For reasons that’s not obvious to those who marveled over Siri’s eerie life-like response, the brighter than real display, the mega-pixels in built-in camera, the openness of Android ecology, or even the price. This phone I bought can accommodate 2 SIM cards.

International roaming calls cost $3 per minutes or more in Asia. It is drastically more economical to use a local phone. And I hated that. I must bulk up my pocket to carry another phone, I need to worry about the battery charging for two phones, the address books are not the same, and my fingers must re-learn the other phone. With a dual-card phone, all these problems disappear. I get to enjoy low local rates calling at the country. I don’t miss calls from home. I can dial from the same address book.

The economy of Apple prevents it from pursuing every niches of the market. If you happen to fit their primary customer segment, everything works out great. Otherwise, you are out of luck. Android market-place allows profitability even for very small or regional plays. Dual-card phones are a phenomenon for pretty much only the Chinese-speaking markets land-lines are much less prevalent, even for work. Having multiple cell phones becomes common and a niche was born.

Many predict the iPhone v. Android evolution to follow Mac v. PC. We will see.

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这样,你才算起步了

什么叫“扎实”的软件工程师?

  • 设计完整严密:有没有面面顾到?有没有文档写好?有没有人审查评估过?
  • 实现涵盖错误处理:一般而言,代码要有一半以上是做错误处理,甚至更高。错误处理常是实现阶段的主要动作,而不是算法。
  • 软件形单元测试:软件工程师最引以为傲的就是他的代码像诗般完美:简洁,高效,稳定,功能达标。测试单位永远找不到缺失。顾客用户永远没问题。只有用软件写的单元测试才可能达到这水准。

一般“好手”,五年可以达到这“扎实”的功力。也有人20年后也不行。这些是“永不妥协”的个人职业要求,没这些就不够格自称“软件工程师”。所有的时间的估计,必须包含了以上三点。没估进的,工程师自己加班补上。三点还是不可妥协。

Posted in China, Management Thoughts | 4 Comments

Let the flood gates open

QE3 has started.

Bernanke announced that starting Friday, September 14th, Federal Reserve will pump some $40 billions dollars into the market every month. Unlike the previous rounds, there is no definitive end date for this. The Fed will continue until the economy has recovered.

The USA will enjoy very low interest rate, like zero, for a long time. The long term interest rate will be low for a long time. Individuals and companies will start borrowing money from their banks. They will then spend or invest those money for something enjoyable or yielding better return than interest rate. This should directly improve real estate market and boost stock prices. If this cause inflation, that will be just fine with the US. Inflation weakens the currency and stimulates export. That’s exactly the result the government hopes. Obama should be a happy candidate with this news.

Many can play this game. China, Japan, and Euro zone were all waiting. Probably immediately, but with less fanfare, they will all starting to print money. The only question is how much and how fast. Yes, the world will soon be flooded with money. The years of prosperity will soon be upon us.

Only fools will save money, since inflation and low interest rate will eat your savings away. Invest is the word. There is no risk, since money is free.

Until the last fool stumbles, that is. Then the whole thing will be crashing down. To prevent that, the money spigot cannot stop, only slow down, and very gradually. That’s called soft landing. We did it before.

Isn’t it cool to be part of an experiment?

Posted in Peek into my mind, Witness to my life | 2 Comments

Coffee @ TPE

Taipei

When not in Seattle, getting quality caffeine is a major inconvenience. Like an addict, I need to secure my fixes regularly and would made mental notes on the locations of Starbucks while moving around the city. Imagine my delight when a friend took me to a small café right behind my hotel.

Kaffa Café’s menu listed simply coffee beans and brewing methods. I picked 100% Kona and the Japanese style brew. The shop keeper promptly scooped out the right amount of beans from a tightly sealed glass jar. While grinding the beans, he measured water into a glass orb and put it on top of a Bunsen burner and turned it way up. The flame now ferociously caressed the clear orb and the water started to notice quickly. Next he produced another glass orb with a long cylindrical tube extended. When the water was turbulently boiling, he jabbed the cylindrical part into the bottom. Quickly, water flew up to the upper orb with the coffee ground. He waited a precise amount of time and removed the Bunsen burner. The water, now subdued and coffee, worked its way slowly back down to the bottom orb. When it is all drained, he removed the upper orb, poured, and served. The whole process took about 3 minutes.

I read that a good cup of coffee has aroma, body, acidity, and flavor. They should all add up to a balance and satisfying sensation at the first sip. After that, it became a simple caffeine delivery mechanism. The cost, NTD210, was a happy expenditure, that’s about $7.

I will try their Cappuccino tomorrow, under the Italian brewing methods.

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Life without a car

I was irrational and couldn’t help it. Really weird.

First time in decades, I am without a car. It felt like going on a trip without computer or forgetting cell phone at home.

For my current situation, owning a car will be an economically wrong decision. My commute to work costs zero and about 15 minutes. We live next to the major retail district. Grocery stores are within walking distance. Car rental locations are very short walk away. Zip car parking lot is right next door. Considering the costs of owning a car — depreciation, maintenance, insurance, governmental fees, etc. — owning a car makes no economical sense.

But I found my judgments and decisions highly irrational. I wouldn’t rent a car just because a restaurant is not easy to get to, for example. Somehow, I couldn’t justify the endeavor when it requires a renting a car, yet I would just do it when I had a car. Financially speaking, renting is cheaper.

This is what I called the “pre-paid is as good as free” irrationality. If I have purchased a gift card for, say, a restaurant. It would have been easier to convince me to patronize the place. Once I do, I would have felt far less guilty ordering an extra appetizer, a nicer bottle of wine, or that decadent dessert. That’s completely irrational.

Maybe it is the spontaneity element? Let’s go do it now! Sure, I will call the car rental immediately. Not having a car prevented us from jumping on an idea and force us to at least plan ahead. Once start planning, all elements, including the rental costs, come into play. Once they are in your head, you cannot get them out.

Seattle’s summer has been beautiful. We walk. For now.

Posted in Witness to my life | 3 Comments

Gone Girl

The brilliancy of the this book is its dual personalities. It tells the story from both Nick and Amy’s angles, like “Mars and Venus” in fictional form. The story unfolds through a progressive, and alternative, of narratives. There are three parts of the book, and I screamed out in surprises at the end of each one (well, maybe not the last).

I particularly liked the book actually ending at the end. I have read so many multi-book stories that I am somewhat wary of the ending of a particular book, anticipating a teaser to hook me to the next installment.

It is very hard not to ruin the book. It began with Nick, the husband, found his wife missing on their 5th anniversary. During his frantic search, we learned about their relationship from Amy, the wife, via her diary entries from several years ago. Their characters unfolded and the plot thickened.

Gillian Flynn was brilliant in making it so believable that those narratives were from Nick and Amy, two distinct personalities. It was convenient, I guess, for her that both were writers, like her.

The ending was intriguing. It set up the series of book, written by Amy and Nick, about their baby and the repeating of the cycle that the baby will grow up just like Amy. So it hinted for the true relationship of Amy’s parents. Was their relationship just like Nick and Amy’s, only practiced for a lot longer time?

So the ending was really the very beginning on how Amy’s parent made her.

Posted in Books & Reviews | Tagged , , | 2 Comments

Americans and their guns

At a party recently, after sufficient “lubrication,” I polled the guests on their “barrel count” (number of firearms they own). These are multi-generational Americans, living, in addition to Seattle, in California, Arizona, Texas, and Florida. The result was startling even to the guests themselves. These people, 6 of them, can out gun an infantry platoon. They were stunned with the answer themselves.

In this country, I must assume that my neighbors have guns. I must assume the driver next lane on the freeway has a gun in the glove apartment. I should assume my fellow campers have guns with them. By personal experience, I believe gun owners are statistically nice people, loving parents, highly educated professional, and law-abiding citizens.

Every year or so, a person, who previously showed no trace of madness and behaved like one of those nice people, brought some guns to a public place and killed. This will continue, since nice people have bad days, get pushed too far, or simply forget to take their medicines.

Statistically, this is simply part of the risk of living in this country. Not much different than driving to work, fly to a far away city, or touching an shining surface with a smear. Everyday, we accept the risk of getting seriously damaged, or even killed, without thinking too much of it.

What’s the probability of getting killed by a mad gunman going to the movies? How about getting into a traffic accident? Falling off the sky in an airplane? Contracting a virus from a public surface? Or even from an earthquake, tsunami, or tornado? Even eating a big fat hamburger?

Yes, Americans have more guns per capita than other countries. Gosh, probably more than they all have added together. But try inserting a word into the blank in the sentences that follow: “Americans love their <…> and are willing to pay a lot for them. This is history, passion, and a fact. It is not going away.”

In addition to guns, can you come up with anything else? Is that thing more dangerous than guns?

Posted in Peek into my mind | Leave a comment

Sailing @ SLU

South Lake Union.

A sailboat is a machine. This machine was invented thousands of years ago, and was reinvented thousands of times over. Human beings are still tweaking this machine to make it more comfortable, faster, easier to maneuver, and more durable. The constraints have been in place from the beginning: wind as the sole power source to propel the vessel. (Oars or engine are used only to get in and out of the dock.) The system is surprisingly simple, yet vastly complicated at the same time. It takes just a few days to learn and a lifetime to master.

A sailboat, particularly a dinghy, is mystically charming. When the sails catch the wind, the boat picks up speed as if it is starting to fly, then it glides on the water in a magical way. Then, without warning, something changes: the wind played a trick on you, you need to change direction, another vessel interacted with you, or water moved differently. You needed to react: trim this or that sheet, steer the rudder, shift your own location, etc. Surprisingly, mostly simply pulling or loosening a rope. The system has three dozen operators yet only one variable: the wind.

Sailing can be mentally challenging, physically demanding, or overall relaxing at the same time. South Lake Union is the perfect place to enjoy or learn this craft.

Come to Seattle downtown and find the streetcar station at Fifth and Olive. It takes 8 minutes’ ride to South Lake Union. Walk into the park and find Center for Wooden Boats. If they agree that you can handle the boat, you may rent a boat and sail out on your own. Otherwise, like myself, you can just sign up for a class ($60). The instructors are enthusiastic, friendly, knowledgeable, and patient. Reservation is highly recommended, from the website.

SLU district is now teeming with restaurants and cafes. A boating excursion followed by a nice dinner, or drink, would be an excellent afternoon.

Posted in Sailing, Seattle, Tour guides, Witness to my life | Tagged | Leave a comment