Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


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

Which mythical character's gifts correlate with changes in the S&P 500 stock index? Detailed answer

Big encyclopedia for children and adults

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

Comments on the article Comments on the article

Did you know?

Which mythical character's gifts correlate with changes in the S&P 500 stock index?

In Western countries, all children know the tooth fairy, who gives money in exchange for lost milk teeth placed under the pillow. Since the early 2000s, Delta Dental has been conducting an annual study in the United States of the average amount that parents put under their pillows. With the exception of one year, the downward or upward trend in this amount is strongly correlated with the change in the S&P 500 stock index. In other words, the gifts of the tooth fairy can be considered a mini-indicator of the state of affairs in the entire American economy.

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

Which bird lays the largest eggs?

Usually, the larger the bird, the larger the egg it lays, but the size of the eggs is not always related to the size of its "parents". The size of the egg depends on the amount of food needed to feed the growing embryo until it hatches from the egg.

Birds that are able to take care of themselves almost immediately after hatching from the egg develop into large eggs, which store a large enough amount of nutritious yolk so that the chick hatches already sufficiently developed. The chicks that hatch blind and helpless are born from small eggs in which the supply of food is insufficient for their full development.

Not all bird eggs are similar in shape to chicken ones: some birds lay oblong, round and even pear-shaped eggs. Eggs laid in high places are usually shaped to prevent them from rolling as much as possible. As for the size of the eggs, the champion here is the ostrich. An ostrich egg can reach 15-17 cm in length and 13-15 cm in diameter, occupying the same volume as 12-18 chicken eggs! But ostrich eggs are the largest among the eggs that are laid by living birds.

In ancient times, there were birds, next to whose eggs, ostrich eggs would have seemed tiny. We are talking about the prehistoric legendary Roc bird, which was found in Madagascar. The egg shell of this bird, found by scientists, gives an idea of ​​the size of the eggs themselves. They reached 33 cm in length and 23-26 cm in diameter. The volume of such an egg was equal to 8 liters, which is 6 times more than that of an ostrich egg and 150 times more than that of a chicken!

And the smallest testicles are hummingbirds. Some varieties of hummingbirds lay eggs as short as 6 mm long.

 Test your knowledge! Did you know...

▪ How did duels originate?

▪ In what language is the capital of Austria called the Danube?

▪ Why do Chinese people burn painted paper money at funerals?

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

Robot troll 23.06.2019

The gloomy Germanic genius gave birth to Ironic Man, a small and very charismatic robot whose sole purpose is to communicate with the user in an ironic tone.

"Ironic Man" is a tiny, slightly less than 30 cm, and extremely funny robot. It was created by German researchers in order to teach robots and humans to better understand each other in everyday life. To make this possible, the Irony Man project was launched - in fact, in itself one big irony. Yes, yes, now even a robot can troll you!

According to Dr Elisabeth André of the University of Augsburg, the idea behind the "ironic robot" is that such a bot can deliver bad news and be critical without being rude. "In a conversation between people, irony comes naturally. It can help create a more pleasant atmosphere by conveying important information (such as complaints) in a less direct and rude way," Andre said in an interview with our Western colleagues.

Irony Man is equipped with an actuator module for the face, which allows him to express a whole range of emotions (wink, roll his eyes, etc.). All this is designed to improve communication with a person and complement the verbal reaction. By the way, the robot also speaks very interestingly - it is able to control intonation, emphasize and emphasize certain words and, in general, broadcast sarcasm quite well. The only thing he still doesn't know how to do is "turn off" the irony, so sooner or later he runs the risk of slapping his plastic face.

However, the researchers note that many users perceive irony and other pseudo-human emotions from robots purely positively and note that in this vein, communicating with the machine has actually become much more interesting and comfortable. "When used properly, irony can really lift a person's spirits, so we will continue to work in this vein," says Andre.

Other interesting news:

▪ The Benefits of Vibrations

▪ talking fingers

▪ Space solar power plants

▪ Tonometer works by touch

▪ Rosewill PB240-RGB Liquid Cooling System

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site Audio and video surveillance. Selection of articles

▪ article Receipt of substances in cities. Basics of safe life

▪ article Where did the name of football player Jan Vennegaard of Hesselink come from? Detailed answer

▪ article MHD generator. Children's Science Lab

▪ article Resources of solar energy. Encyclopedia of radio electronics and electrical engineering

▪ article Simple LF amplifier on lamps. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

Name:


Email (optional):


A comment:





All languages ​​of this page

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

www.diagram.com.ua

www.diagram.com.ua
2000-2024