Feedback leads to virtual progress

People seek for feedback about progress. When travelers arrive at the Chek Lap Kok International Airport, they catch a train to Kowloon and Hong Kong. In the train, there is a blue-light indicator which shows where the train is right now. This feedback gives correct information to travelers. However, feedback is not always objectively given…

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Are fresh fish better than canned fish?

I love canned sardines. Whenever I visit different cities, I buy a dozen of canned fish on the way back home. I was excited to find Annam Gourmet at Ho Chi Minh city, Vietnam because it has a wide variety of canned fish, along with fresh fish. Canned fish are fish which have been processed, sealed…

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Why does the amount of Coke differ across bottles?

When I had a lunch at Buenos Aires, Argentina, I ordered four bottles of Coca Cola. Interestingly, bottle sizes differed and the amount of soda in each bottle looked different. I simply thought this was due to the Quality Control failure of the Coca Cola in Argentina. After coming back from Buenos Aires to Seoul,…

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