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FOOD AROUND THE WORLD
It isn't amazing how much time we spend talking about food? "Have you ever eaten ...?", "What do you have for lunch?" and so on. And yet, when you travel from one county to another, you find that people have quite different feelings about food. People often feel that what they eat is normal, and what other people eat is strange and silly. In most parts of Asia, for example, no meal is complete without rice. In England, people eat potatoes every day. In the Middle East, bread is the main part of every meal. Eating becomes a habit which is difficult to change. Americans like to drink a lot of orange juice and coffee. The English drink tea four or five times a day. Australians drink large amounts of beer and the French drink wine every day.
The sorts of meat people like to eat also differ from one country to another. Horse meat is thought to be delicious in France. In Hong Kong, some people enjoy eating snakes. New Zealanders eat sheep, but never eat goat meat. The Japanese don’t like to eat sheep meat because of its smell, but they enjoy eating raw fish. So it seems that although eating is a topic that we can talk about for hours, there is a little common sense in what we say about it. People everywhere enjoy what they have always eaten, and there is very little we can do to change our eating habit.
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Li-Fi technology is a new technology that transmits signals as light instead of radio waves. In urban areas where Wi-Fi networks become congested and there is a lot of noise in the signals, this technology is something that can be of immense use to an individual. The basic requirement of this technology is the available of light!
Light is also an electromagnetic wave like radio waves. The only difference is that the former has the ability to transmit data almost ten thousand times faster than latter! The basic process is quite simple to understand. An LED light bulb, any one at all, can be flicked on and off in order to be able to generate signals. A light sensor on a device picks up the digital information sent by the LED, which enables it to be processed by a computer.
The question is whether anyone wants to go through the annoying experience of sitting under a flickering light bulb. This is the interesting part. The technology is focusing on make sure that the light bulb is flickered up to billions of times a second! At that rate, the human eye simply cannot notice the light bulb being flicked on and off.
However, everything comes with a disadvantage. The major disadvantage here is the fact that these signals cannot penetrate walls. So if you want to move from one room to another, you will need to have a wired bulb present in that room as well.
An Estonian startup company called Velmenni took the technology out of the laboratories and brought it into the real-world offices, and industrial environments in Tallinn for the first time.
Overall, this sounds like quite a development in the field of communication technology.
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When the era of digital technology has bloomed all over the world, human beings have witnessed thousands of wonderful inventions which can be applied in a variety of fields. Among those, robots are considered as a brilliant human creativity and have been developed further to serve people. Shaped into human bodies, robots are machines built to do tasks. Normally, they can be controlled by built-in computers so that they can do a series of automatic actions. These human-like machines help us explore new places, and uncover the mystery of the deep and cold ocean which is very dangerous for a normal body. They seem to play an unlimited role not only in exploration, but in medical fields as well. In hospitals, they can do a wide range of jobs in cooperation with doctors to improve the health care system. For instance, robots can assist physicians remotely to check on patients and even inspect them. They can search around hospitals to collect information about the sick and transmit it to the doctors through a screen to help them interact efficiently. With cutting-edge technology they can even do an operation with a high level of accuracy under professionals’ control. Thanks to robotic assistants, medical workers can save time and save many lives from fatal diseases. It is believed that the number of robots applied in the medical industry will be expected to increase dramatically over the next few years.
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My city has been changing since the municipal authority had a plan to renovate the canal systems. The project cost a huge amount of money which was from the support of the world bank and the city’s budget. Before the renovation, the canal was the dirtiest place full of rubbish along its sides. Many ramshackle shacks were built to be shelters of the impoverished working families migrating to this city to earn their living. Household wastes were directly dumped into the canal, resulting in the very contaminated environment. It was said that the very unpleasant smell releasing from the canal was unable to be eliminated, and the living condition there would not be better. However, thanks to the advanced technology and methods as well as the city authority’s effort, everything has been changing. There is no longer the disgusting smell or shabby houses along both sides of the canal. Instead, the road running parallel to the canal is now full of shade of greenery and the water now is so clean that it is a friendly habitat for a variety of fish. The residents now can walk or do morning exercise on the sidewalks along the banks to enjoy the fresh atmosphere. Former inhabitants are also relocated in new apartments with much better living conditions than before. The canal creates not only a beautiful urban landscape, but also brings a lot of economic benefits to local dwellers. Because of its reformation, the city is changing fast too.