Whether in urban or rural areas, magnificent buildings have sprung up and the old city has taken on a new look; Skyscrapers are row upon row, and magnificent bridges are magnificent; Beautiful scenery, beautiful pictures, changing with each passing day; Busy city, people are busy shuttling through it. The rapid change in one day benefits from the development of modern building technology, which is a great science!
Look at the present and remember the past.
Thousands of years ago, primitive humans lived in natural caves for production, life and their own safety. Natural caves, green moss, white clouds and jade, gently shaking pieces of haze, a blessed land where man and nature are one.
At that time, science and technology were out of the question. The tools people use are stone tools and bones. It is difficult to maintain life and survival with such simple tools. How can we create a comfortable accommodation environment?
Simply accept it and live in it. There is moisture on the cold ground, smooth stalactites will drip, and the hard-made production and living tools will be moldy and rotten; Tough bodies become weak, and sound bodies become disabled; Flies, mosquitoes and mice are companions, bats, poisonous snakes and foxes are companions, and viral diseases threaten people's lives at any time; The cave door is wide open, and wolves, tigers, leopards and lions have been waiting for a long time. It is not easy for primitive humans to survive under such living conditions.
Slave society and feudal society, science and technology developed greatly, and living conditions changed greatly.
People have hands and brains. Hand tools stimulate the brain and transform brain thinking. People make tools and improve them, technology is improved and science is developed.
Production tools have developed from stone tools and bone tools to bamboo, wood, copper and iron; People bid farewell to nesting and turned to life on the ground. People use earth as walls, branches as beams and thatched houses. Great changes have taken place in living conditions, living conditions have improved, and people's health level has reached a higher level. Since then, people have bid farewell to dampness and poisonous insects and beasts.
1800 years ago, Zhuge Liang, the prime minister of Shu, lived in a hut while plowing in Nanyang, and later became prime minister in Chengdu, living in a simple wooden house. In those days, most city walls were made of mud. If the war is destroyed, the cold north will be defended by building walls with water.
With the progress of technology and the improvement of tools, full-time craftsmen, such as Lu Ban, were born. The conditions of housing are not only shelter from the wind and rain, but also geomantic, safe and beautiful. Wealthy families (such as bureaucrats, businessmen and landlords) bid farewell to huts and live in luxurious wooden houses built by senior craftsmen, some of which have two or three floors, which are magnificent and intrigued; The palace has developed into a mixed structure of masonry and wood, with red walls and yellow tiles, resplendent and magnificent, exquisite and lifelike marble.
Modern science and technology have made great progress, and building technology has also advanced by leaps and bounds.
The poor bid farewell to the thatched shed and built a tile-roofed house with stone and wood structure. Building a house is no longer a matter of choosing a place at random. We should consider flood control, convenient draught and travel, and natural disasters such as strong winds. It's very lively to invite monks and Taoists to watch Feng Shui and offer sacrifices to build houses and beams.
Generally, there are three rows of six stone and wood tile houses, which are spacious and bright, moisture-proof, rain-proof and windproof, and are beneficial to people's daily life and physical and mental health. With the improvement of living conditions, people are healthier and live longer.
Rich people build small buildings with bricks. No matter how good the first floor is, I'm afraid of humidity. They must live above the second floor. Not only water, but also electricity, the quality of life is greatly improved, and the floor is already reinforced concrete, which is much safer.
But in western countries, after several industrial revolutions, science and technology have developed rapidly. Instead of staying in a small building, a building was built, including doorbell, elevator and telephone. Tens of meters high skyscrapers have broken world records again and again.
Since modern times, science and technology have advanced by leaps and bounds, and earth-shaking changes have taken place in just 30 years. Architecture is changing with each passing day.
Every household in the countryside has built a building, and there are three or four floors everywhere. It is not surprising that there are seven or eight floors.
Insisting on building roads and houses is the only way to get rich. It is convenient to travel in the garage on the first floor. Living on the second floor is good for health. Guests on the third floor don't have to build a hotel. The fourth, fifth and sixth floors look spectacular when they are empty. Pigeons on the seventh floor and the eighth floor can fly their hearts.
The roof won't let it idle. Drying clothes, the nearest to the sun can also prevent theft; Enjoy the cool at night, count the stars and enjoy the moon; Sports, square dance, Tai Chi.
There is electricity, water and ventilation in the building, and water pipes, cables and optical fibers can reach every room.
Tiles are attached to the outer wall, which can prevent sun and rain and is beautiful. Stainless steel anti-theft net and ladder are gorgeous and generous.
There is a world in the room. The light reddish-brown security door is equipped with an iron anti-theft lock. There are skirting lines around the bright floor, heating pipes are buried under the floor, cables are hidden on the snow-white walls, and there is a luxurious large crystal chandelier on the roof of the carved beam building. Under the chandelier is an oval solid wood eight immortals conference table surrounded by arched swivel chairs. The sofa coffee table here is also indispensable.
In the bathroom, anti-slip colored tiles are pasted on the ground, anti-scaling white tiles are pasted on the wall, and there is a high-power yuba on the ceiling. The water in the faucet can produce cold water or hot water, and the hot water in the nozzle is on call. There is a big mirror hanging in front of the smooth white ceramic basin, warm wind blows gently under the white toilet, and the washing machine is put in.
In the kitchen, the floor is non-slip brick and the wall is anti-scaling brick. The rice cooker is filled with cooktops, microwave ovens, rice cookers, induction cookers, pressure cookers, gas stoves, refrigerators, anti-virus cabinets, dishwashers and pollution-proof range hoods.
There is a Wolong bed in the center of the bedroom, with high and low wood grain illumination. Wolong bed is covered with cotton and linen silk sheets, which are covered with swan duvets made of big red flowers and silk. There are seven bedside tables on both sides of Wolong bed, and a brown wood closet stands on the wall at the end of Wolong bed. The bedroom leads directly to the bathroom, which is convenient.
…….
Will the construction in the city be lost to the countryside? High-rise buildings have sprung up in rows. There are reinforced concrete, glass aluminum profiles and all-steel structures; Some are more than 200 meters high, and some single buildings reach 6.5438+0.76 million square meters; Some are built like vegetable baskets, some like copper coins, some like crotch, and some like unfinished buildings.
People who are busy shuttling through this reinforced concrete building complex have long been tired of the noisy and congested big cities and yearn for the fields where wheat waves wash their hearts.
In the past 30 years, which dynasty and generation in history can compare? These are great changes brought about by science. Without modern science, there would be no tall buildings today. 36860 . 68868888686