A Picture of Four Men

    There are four men in this picture. They are playing on the frozen river. A man is not wearing his clothes and goes into the river. He is very cold. Other men are watching him and laughing. Maybe they played ice hockey, because they are wearing skates and a man having stick which used in ice hockey.


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Chalk art

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Chalk art is art which is wrote on the blackboard. This blackboard in not common blackboard. This is board which is painted with special black coating. It is drawn by oil pastel. It is colorful drawing material like crayon. The feature of chalk art is colorful gradation, because it is wrote with fingers. The drawing is coated varnish. I have come to see it at the cafe and restaurant these days. If you would like to try it, you should go to chalk art course. That is because preparing materials is difficult.
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Sharks

Shark is fishes. Shark is different from fishes which we know such as tuna and sardine. Common fishes have hard born containing a lot of calcified substances and float by air bladder. However every shark's borns are cartilage and float by liver. Shark's image is danger and savage creature of the sea. Someone maybe every shark attack human positively because of shark movie or accident, but almost types of shark are timid so they do not approach human.  Sharks use urea to control osmotic pressure so sharks are not delicious. Urea become ammonia after sharks died. Ammonia delay decompose so it was eaten in mountainous area in the past.
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Fireworks

Hiroshima university's cultural festival was held yesterday and today. Fireworks shoot in the sky today. I watched it.  Japanese fireworks is circle unlike foreign fireworks so many people can watch same shape fireworks anywhere. Japanese fireworks festivals used to be held in river. Fireworks was enjoyment of common people. Fireworks have various colors. It made by flame reaction. Flame reaction is reaction of flame at the time of moving metal closer to flame.  It is interesting.
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