Inventor of various household appliances and appliances

The invention of electrical appliances cannot be attributed to a single person, it is a gradual process that has gone through centuries. The earliest records date back to the ancient Greek period, when some scholars discovered that amber was rubbed to produce an electric charge, which was one of the foundations of the field of electricity. In the 17th century, many scientists contributed to the study of electrostatics, that is, the extraction of electric charges from objects; In the 18th century, Benjamin Franklin proposed the concepts of "positive electricity" and "negative electricity" in the process of studying lightning.

At the beginning of the 19th century, Austin Appleby Beckwitz and Andrew Carney invented the first battery, which was an important milestone in electrical technology and also contributed to the use of electricity. With the rise of electronics and computer science, more electrical and electronic devices have been invented and given a wider range of applications.

The invention of electrical appliances can be traced back a long time, but the earliest person thought to have invented electrical appliances was the American scientist Benjamin Franklin. In the 18th century, he carried out the famous lightning experiment with a kite and a key, successfully proving the similarity between lightning and static electricity, and opened up the field of electricity. In addition, the British scientist Michael Faraday was also an important contributor to the field of electricity, and he established the theory of electromagnetism by experimentally proving the correlation between electricity and magnetism.

The world's first television was invented in 1924 by John Baird, an electrical engineer in the United Kingdom.

The world's first washing machine was made in 1858 by the American Smith.

The world's first refrigerator was born in 1918 and was designed and manufactured by E.J. Coberland, an engineer from Carl Wienert in the United States.

The world's first modern, electrically propelled air conditioning system was invented by Willis Carrier (1876-1950) in late 1902.

The first man in the world was invented by ancient Nuwa!

I think it should be Edison, **, electric lights are relatively early inventions.

The first electrical appliance in history was a carbon fine rod microphone, and the name of the inventor is not known.

In 1876, a laboratory was established in Monroe Park, New Jersey, which successfully developed the carbon rod microphone. It was the first industrial research laboratory and left a founding record for future generations of the concept of a research group.

In 1660, Curic built the world's first rotating friction generator, but it generated static electricity and was difficult to use.

In 1780, the Italian physician Gaffani began to study the electric currents produced by chemical action rather than static electricity by starting from the reaction of animal tissues to electric currents. He claimed that animal tissues could produce electricity. Although his theories proved wrong, his experiments led to the study of electricity.

In 1799, the Italian physicist Volt showed that the current of Gaphani is not the same as that of animals, and that placing any wet object between two different metals will produce an electric current. This discovery led directly to Volt's invention of the world's first battery in 1800.

In 1821, the British physicist Faraday invented the world's first electric motor. Although the installation is rudimentary, it is the ancestor of all the electric motors used in the world today. This is a major breakthrough.

However, its practical use was very limited, because there was no other way to generate electricity than from rudimentary batteries.

In 1831, Faraday discovered that when a magnet passes through a closed line, an electric current is generated in the line, an effect called electromagnetic induction. One of Faraday's greatest contributions. As a result, he invented the world's first generator capable of generating a continuous current.

Later generators were made according to the same principle of electromagnetic induction.

Since then, mankind has entered the era of electrical application, and various practical electrical appliances have begun to emerge.

In 1879, Edison invented the world's first practical incandescent light bulb.

Since Edison invented the electric light, power plants have developed rapidly.

The Pearl Street Power Plant, commissioned in 1882 in the Manhattan area of New York, is known as the world's first power plant, with six 120 kW steam engine generator sets.

China's first power plant was also built in 1882, and it was the Shanghai Dianguang Company, which was established by the British in the Shanghai Concession. At that time, the power plant was designed to supply electricity for electric lighting. That's probably why the old Shanghainese called the power plant an electric light company.

The geodynamic instrument is Zhang Heng, a scientist from the Eastern Han Dynasty in China.

A masterpiece of creation. Zhang Heng lived in the Eastern Han Dynasty.

**More frequent. Zhang Heng has a lot of personal experience in **, in order to grasp the national ** dynamics, he after years of research, and finally in the first year of Yangjia (AD 132) invented the wind geodynamic instrument, which is also the world's first geodynamic instrument.

The geokinetic instrument has eight directions, each of which has a dragon head with a dragon ball in its mouth, and a toad underneath each dragon's head.

and its counterpart. If there is a ** occurrence on either side, the dragon ball contained in the dragon's mouth in that direction will fall into the toad's mouth, so that the direction of the occurrence of ** can be measured.

2. an iron plow. The iron plough first appeared in China during the Spring and Autumn Period and the Warring States Period. The ruins of Yanxiadu in Yixian County, Hebei Province and Huixian County in Henan Province have unearthed iron ploughshares in the Warring States Period.

The invention of the iron ploughshare is a remarkable achievement, which marks a new period in the development of human society and also marks a new stage in the struggle of human beings to transform nature. The iron plough, a farming tool in the Han Dynasty, already had a plough wall, which could play the role of turning over and breaking the soil. When the iron plough was introduced to the Netherlands in the 17th century, it sparked the agricultural revolution in Europe.

3. Cocoon. Cocoon is an ancient agricultural tool used for sowing. Led by livestock and supported by someone behind, it can complete the two tasks of ditching and planting at the same time. Plant one ridge at a time or multiple ridges, up to 5 ridges in the traditional way. Its farming tools are the predecessor of the current planter, which is used to sow seeds.

Also known as "Cundi". Columbian is also called cocoon plough. According to the Eastern Han Dynasty Cui Yu's "Political Commentary", the cocoon plough was invented by Zhao Guo, the commander of Sosu during the time of Emperor Wu of the Western Han Dynasty

Three plows have a total of one ox, one person will take it, and the next seed will be cocooned, all of which will be prepared, and one hectare will be planted every day. "This kind of cocoon is the three-legged cocoon that is still used in the northern countryside.

4. Keel waterwheel.

Keel waterwheel is also known as "overturned", "treadmill", "waterwheel", and the province is called "keel". Irrigation farming tools in the history of the Han nationality are popular in most parts of China. This type of water lifting facility has a long history. Because its shape resembles a keel, it is called "keel waterwheel".

Its structure is based on wooden planks as a groove, the tail is immersed in the water flow, and there is a small wheel axle. At the other end there is a small axle, which is fixed to the wooden frame of the embankment. When stepping on the crutches, the large wheel axle rotates, and the leaves in the trough are driven to scrape the water upwards and pour into the higher fields.

In later generations, there were water-to-keel cars powered by flowing water, and ox-drawn overturned cars that used oxen to rotate gears. and wind-turned, wind-turned, wind-powered rollovers. Guangdong and other places are lighter with hand-cranking, and it is applied to the field ditch, which is called "hand-cranked pulling car".

5. Lingqu. Ling Canal, in ancient times, was known as Qin Chisel Canal, Zero Canal, Steep River, Xing'an Canal.

The Xianggui Canal is ancient China.

A great project created by working people. Located in Xing'an County, Guangxi Zhuang Autonomous Region, it was chiseled into navigation in 214 BC.

The Ling Canal flows from east to west, connecting the Haiyang River (the source of the Xiangjiang River, flowing from south to north) in the east of Xing'an County and the Darong River (the source of the Li River, flowing from north to south) in the west of Xing'an County, which is one of the oldest canals in the world and has the reputation of "the pearl of ancient water conservancy architecture in the world".

Which electrical appliance was invented by the Chinese in modern society? VCD: In 1993, the founder at that time, Jiang Wanmeng, successfully applied MPEG technology to audio audio-visual technology, and developed a high-quality and inexpensive audio-visual product - VCD.

The four major inventions are the achievements of wisdom and science and technology in ancient China, including papermaking, compass, gunpowder, and printing.

The theory of the four great inventions originated from the British sinologist Joseph Eyjo.

The four inventions have played a huge role in promoting the political, economic and cultural development of ancient China, and have been transmitted to the West through various channels, exerting a huge influence on the history of the development of world civilization.

Chinese name. Four Great Inventions.

Foreign name. four great inventions

Content. Papermaking, compass, gunpowder, printing.

Time of invention. Eastern han dynasty.

Effect. Indirectly exacerbates globalization.

Fast. Navigation.

The invention of the magnetic needle, the north and south poles, the Spring and Autumn Period, the four methods of speculating the direction, the invention of papermaking culture, the invention of gunpowder, the invention of printing, originated from the historical significance of the Tang Dynasty and the Western Han Dynasty.

Historical origins. Although many important achievements of Chinese civilization are named after the "Four Greats" and "Five Greats", such as the Four Great Beauties, the Four Classical Classics, and the Four Books and Five Classics, the concept of the Four Great Inventions was adopted by Western scholars and later accepted by the Chinese. As early as 1550, the Italian mathematician Jerome Cardin was the first to point out the "three major inventions" that China had an impact on the world

It's Sinan (compass), printing, and gunpowder. And considered them "an invention that has no rival in the whole of antiquity." In 1621, the English philosopher Bacon also mentioned in his book "New Tools":

The three inventions of movable type printing, gunpowder, and the compass have changed the whole face and situation of things around the world. ”

There is no invention, the contribution rate of modern science and technology is minimal, and some people say that Yuan Longping's hybrid rice is barely half of it...

Inventor: In 1924, Baird, an Englishman, invented the most primitive television set, which transmitted images with electricity.

The RCA launched the world's first black-and-white television in 1939, set the national standard for color television in 1953, and launched the RCA color television in 1954.

Because the RF signal is mixed with some interference signals in the process of air transmission and attenuated with the increase of transmission distance, after the TV receives the weak RF TV signal from the cable or antenna (RF IN), it must first be demodulated through the tuner, and after amplification, mixing and detection, the high-frequency carrier component is filtered out to obtain a composite all-TV signal of PAL, NTSC or SECAM standard.

The signal is amplified, and the luminance and chromaticity signals are separated to obtain the YC component signal. Finally, the YC component signal is converted into YUV, and then converted into RGB component signal and sent to the CRT for display.

In the whole TV signal, due to the bandwidth occupied by the chromaticity signal, the electronic circuit of the TV directly intercepts the signal at the low end of the brightness of about 3MHz when the brightness and chromaticity signal are separated and processed. In this case, although the phosphor screen of the TV can achieve a horizontal decomposition rate of about 500 lines, the actual horizontal decomposition rate of the TV signal input from the antenna is only about 260 lines. In addition, the signal strength of different channels is different, and the final image resolution rate reflected on the phosphor screen is also different.

It's the machine, not the human, these people are looking at the people inside the machine.

The scope of household appliances varies from country to country, and there is no unified classification of household appliances in the world. There are two main methods to classify according to the function and use of the product and according to the electrical working principle of the product. The latter divides household appliances into four categories: refrigeration, electric heating, electric, and electronic appliances, which is not very perfect.

It is more common to classify products according to their functions and uses, but the specific classification varies from country to country, and it is roughly divided into 8 categories.

Refrigeration appliances: also known as refrigeration appliances. It is used for freezing, refrigeration of items (mainly food), including household refrigerators, cold drink machines, etc.

Air conditioning appliances: referred to as air conditioning appliances. It is used to regulate indoor air flow, temperature, humidity and remove dust in the air, including room air conditioners, electric fans, ventilation fans, hot and cold air vents, air dehumidifiers, etc.

Cleaning appliances: used for fabric washing, maintenance and maintenance of indoor environment and equipment, including washing machines, dryers, electric irons, vacuum cleaners, floor waxing machines, etc.

Kitchen appliances: used for food preparation, cooking and kitchen hygiene, including electric stoves, microwave ovens, induction cookers, electric ovens, rice cookers, dish washers, electric water heaters, food processors, etc.

Electric heating appliances: used for domestic heating, including electric blankets (pads), water heating blankets, electric heating quilts, electric heating clothes, and space heaters.

Cosmetic care appliances: used for haircuts, face cleaning and home medical care, including electric shavers, hair dryers, hair trimmers, ultrasonic facial washers, electric massagers, air ionizers, etc.

Audio-visual appliances: used in family entertainment life, including televisions (see TV receivers), radios, tape recorders, video recorders, video cameras, combined audio, etc.

Other electrical appliances: such as smoke and fire alarms, electric bells, water appliances (water purifiers), etc.

Electric light: On October 21, 1879, the American inventor Thomas Edison finally lit the world's first practical electric light through long-term trial and error. The lamp is a great testimony to the conquest of the night.

Since then, the inventor's name, like the electric light he transformed, has entered thousands of households. He is Edison, who was praised as the "King of Invention" by later generations, and brought lasting light to mankind.

Television: In 1939, the American Radio Corporation began broadcasting all-electronic television. Philip invents the first black-and-white television projector in Switzerland.

Radio: In 1906, the Canadian inventor Reginald Fessenden first emitted sound, and radio broadcasting began.