Most children love being told about nursery rhymes. The most popular rhymes (list) here. Even elders love to hear these rhymes are sweet to our ears forever. These rhymes speak volumes about the interest (show) by the education department to ensure the children to speak out.
The list is clearly not exhaustive but is believed that a good cross section of famous poems for children has been included. We have selected the most famous nursery rhymes for children. We have done our best (collect) all the nursery rhymes from all sources and add them here for your (refer). The addition of more and more rhymes is going on every day.
These nursery rhymes for children (pass) over the years and because the short nature of the verse, they can (easy) be remembered by most children from a very early age. Analysis of these nursery rhymes will reflect the (history) background where these nursery rhymes were written.
The Chinese Tang Dynasty poet Du Fu is often called the sage(圣人) of poetry. Unlike Li Bai, this poet wrote in various styles, and his works were often innovative(创新的) in language and subject matter. His poems were also filled with meaning.
His innovation was not at all welcome. The readers of his time rarely showed much appreciation of his original and innovative works. The masses in fact hated and scolded them. Like many artists, Du Fu was only recognised for his genius long after his death.
Du Fu was born in Luoyang, Henan Province. Although he came from an influential literary family, his early attempts to gain a position in the government by way of the exam system failed repeatedly. He was 43 years old when he finally managed to hold an official position. This was the time when Emperor Xuanzong was attracted to the beautiful Yang Yuhuan and made her his concubine(妃子), which Du Fu severely criticised in his Song of the Beautiful Ladies.
As the emperor got distracted from important government affairs, some military leaders were becoming too powerful. Du Fu took office in 755, and in the same year a rebel(叛乱) leader An Lushan led his army into the capital of Tang Dynasty. The emperor fled to the west and left the governing of the state to his son. Du Fu and his family took the road north to escape the rebels.
The poet left his family and tried to get to the headquarters of the new emperor, but he was caught and held prisoner by the rebels in Chang'an. After order was restored again, Du Fu got back his position in the capital. However, he did not enjoy the favour of the new emperor and was given a minor provincial post. In 759 he finally left this disgraceful position and spent the rest of his life wandering around the country.
A rainy day can be a chance to recharge. While you relax on the sofa with a movie, the raindrops falling on your windows might one day provide the power for your TV. This is the idea behind an invention that harvests energy from water.
The technology is based on the triboelectric (摩擦电的) effect. An engineer at the University of Hawaii, David Ma knew that it was possible to generate electricity by rubbing two things together. So, he thought, "Why don't we use water?"
A drop of water sliding across a surface coated with two different materials would generate enough friction(摩擦) to create an electrical charge. By placing metal wires that the drop of water touched as it moved, it should be possible to harvest electricity, he reasoned.
It worked. In fact, the researchers lit up 15 LED bulbs with a single moving water drop.
This is not the first time that scientists have got electricity from water-generated friction. Earlier experiments, though, harvested the charge produced in a surface by a sliding drop of water. There, the surface had acted as an electrode(电极). This is different. The energy of friction is being harvested from the water itself.
"The technology could someday power phones, sensors or other small electronics," says Christopher Oshman, an engineer at the Colorado School of Mines. "This work is a step towards harvesting the energy of moving objects all around us, including ourselves, to power the electronic devices we use every day," he says.
"Ma has shown that the technology can work in a lab," Oshman says. Next, the Colorado researcher would like to see it tried on a larger scale, such as on an umbrella.