What currency began to be denoted by the sign $ before the dollar? Detailed answer

BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

What currency began to be denoted by the sign $ before the dollar? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Did you know?

What currency began to be denoted by the sign $ before the dollar?

The dollar sign $ is older than the American currency. It appeared in business correspondence from the 1770s and was used in relation to the peso, the currency issued by Spain for its colonies and also circulating in the territory of the future United States. Examination of the documents of that era showed that the sign was formed by the merging of the letters P and S in the abbreviation Ps, used for the peso in the plural. At first, the letters simply overlapped each other, and then only a vertical line remained from P. To this day, the $ is also the official symbol for the Mexican and all other Latin American pesos.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Who wrote the first opera?

Do you like TV westerns? They are popular with many. But can you imagine someone being enamored with the same western year after year for decades?

However, there is one kind of art that people enjoy in this way. This is opera. Perhaps opera is so popular because it is pleasing to both the ear and the eye. An opera is a play in which the parts are sung rather than recited.

The main parts are performed by soloists, but there is also a choir. The orchestra plays independently at the beginning of the opera and before each new act. He accompanies the singers and the action of the opera. The music played before the start of an opera is called an overture or prelude.

There are two types of solo parts in the opera. The aria is like a long song. Recitative sounds like recitation to music. The complete content of an opera is called a libretto. The score is the music for the opera, recorded in its entirety. Many operas have added ballet.

The year 1600 is considered to be the beginning of the opera. This year, the Italian composer Zhdakopo Peri wrote the opera "Eurydice", which was performed at the wedding of the French King Henry IV. From this we can conclude that opera has been a popular form of entertainment for four hundred years.

Test your knowledge! Did you know...

▪ When did man start making beds?

▪ Where is Ismail Somoni Peak located?

▪ The soldiers of which countries arranged a truce at the front and celebrated Christmas together?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

Who sleeps more, feels less 10.12.2012

A new study published in SLEEP concludes that prolonging nighttime sleep in adults increases alertness and reduces pain sensitivity during the day.

The study involved 18 healthy volunteers. They were divided into groups with different duration of sleep. The control point was sleep at 10 o'clock. The entire experiment lasted four days, during which sleepiness (using several sleep latency tests or MSLT) and pain sensitivity (using radiation heating of the skin) were measured during the day.

The results of the study show the importance of sleep in various chronic pain conditions or in preparation for surgery. Scientists were surprised at the magnitude of the reduction in pain sensitivity - sometimes a long sleep was more effective than codeine. People who slept 1,8 hours longer showed a marked increase in daily activity and a decrease in pain sensitivity. Thus, this group of volunteers withdrew their finger when heated by 25% more than other participants, which is equivalent to a decrease in pain sensitivity when taking 60 mg of codeine.

According to the authors, this is the first study that clearly shows how effective long-term sleep is for chronic pain. Moreover, the long-known symptoms of chronic pain associated with daytime sleepiness are explained. It may be possible to reduce the dosage of powerful pain medications by providing people with chronic pain with better sleep.

Other interesting news:

▪ Transcend DDR4 Memory Modules for PCs and Servers

▪ Artificial sun against viruses

▪ Parking will be easier

▪ New proof of string theory

▪ Prosthetic arm rocket engine

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Palindromes. Article selection

▪ article Black box. Popular expression

▪ article Where did ceramic restoration become an art form using gold powder? Detailed answer

▪ article Director's assistant, choreographer, conductor, club choirmaster. Job description

▪ article Simple hidden wiring finder without power supply. Encyclopedia of radio electronics and electrical engineering

▪ article Telephone number. Focus secret

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews