What are some interesting math science trivia?

Interesting math knowledge is as follows:

1. Arabic numerals.

Arabic numerals were invented by the ancient Indians, and later spread to Arabia and from Arabia to Europe, where Europeans mistakenly thought they were invented by the Arabs and called them "Arabic numerals". Because it has been passed down for many years, people call it so easy that people still make mistakes and call these number symbols invented by ancient Indians Arabic numerals.

2. Ninety-nine songs.

Ninety-Nine Song is the multiplication mantra we use now.

Far away in the Spring and Autumn Period and the Warring States Period BC.

Jiujiu Song has been widely used by people. In many works of the time, there are records about the ninety-nine songs. The original ninety-nine song is from "ninety-nine-eighty-one" to "two-two-like four", with a total of 36 sentences. Because it started from "Ninety-Nine-Eighty-One", it was named Ninety-Nine Song.

It was only between the 5th and 10th centuries that the Ninety-Nine Song was expanded to "One and One as One". Around A.D.

Ten. In the third and fourteenth centuries, the order of the ninety-nine songs became the same as those used now, from "one to one" to "ninety-nine eighty-one". Now there are two kinds of multiplication formulas used in China, one is 45 sentences, which is usually called "small ninety-nine"; There is also an 81-sentence one, which is often called "big ninety-nine".

3. Möbius ring.

The Möbius ring is a type of topology.

structure, which has only one face and one boundary. You can twist a strip of paper to 180 degrees, and then bond the two ends together to form a Möbius ring.

The Möbius ring is cut along the midline, and for the first time, a larger ring can be obtained; The second time and later, each time you get two rings nested within each other. The middle never breaks, and that's the magic of the Möbius ring.

Fourth, the Klein bottle.

In 1882, the famous mathematician Felix Klein.

The famous "bottle" that would later bear his name was discovered: the Klein bottle. The Klein bottle is like a bottle, but it doesn't have a bottom, its neck is elongated, and then it seems to pass through the wall, and finally the neck of the bottle is connected to the bottom circle.

Interestingly, if you cut the Klein bottle along its line of symmetry, you get two Möbius rings.

5. Segmentation.

**The proponent of the partition was Pythagoras.

Once, Pythagoras passed by a blacksmith's workshop and was jingled.

The sound of striking iron was captivated. To uncover the secrets of these sounds, he measured hammers and anvils.

found that there is a very harmonious proportional relationship between them. When he got home, he took out a thread, divided it into two sections, and compared it repeatedly, until he finally decided that the proportions were the most beautiful. This ratio is recognized as the most aesthetically pleasing proportion, hence the name ** division.

The fun math content is as follows:1. The highest mountain in the world is Mount Everest, which is 8,8848.8) meters in height.

2. The largest ocean in the world is the Pacific Ocean, with an area of 179,968,000 (179,968,000) square kilometers.

3. The longest river in China is the Yangtze River, with a length of 6,397 (6,397) kilometers.

4. China is the most populous country in the world, with a population of 1390080000 (1,390,080,000) people.

5. The diameter of the sun is 1392000000 meters.

6. The surface area of the earth is 100 million square kilometers.

The annual population of the world is 100 million.

8. The deepest lake in the world is Lake Baikal with a depth of 1,741 (1,741) meters.

9. The distance between the sun and the earth is more than 149597870 kilometers.

10. It takes 500 trillion cells to make up a human body.

There are a lot of interesting little facts in mathematics that require strong logical thinking to be able to reason. There are some issues that are actually inconsistent. But it is the existence of this contradiction that constitutes the science of the discipline.

There are still many interesting scientific phenomena, such as the need for such knowledge when shopping for groceries or things, height can sometimes be used as a measuring stick, as well as the coin paradox, multiplication table, xy problem solving ideas and processes.

1. In the ninety-nine multiplication table, 9x3 = 27, 9x8 = 72, the product is just an upside-down number, only the product of 9 is like this 2, the numerator is one, when the numbers with different denominators are added, just find the least common multiple of the denominator and turn the denominator into the same number. 3. The sum of all natural numbers is minus twelve.

The coin paradox, the three-door problem, the chicken-rabbit cage problem, the pool filling problem, the two-car encounter problem, these are all very interesting.

1. If the length of the "one hand" is 8 cm, and the length of the desk is 7 cm, it can be seen that the length of the desk is 56 cm. If each step is 65 centimeters long, when you go to school, you can count how many steps you have taken to calculate how far you have traveled from home to school.

2. Height is also a ruler. If the height is 150 cm, then hold a large tree and put your hands together, and the length of the tree's circumference is about 150 cm. Because each person has their arms stretched out, the length and height between the tips of their fingers are about the same.

3. If you want to measure the height of the tree, the shadow rush back can also help. Just measure the shadow of the tree and the length of your own shadow. Because of the height of the tree, the shadow of the tree is long, the height of the figure is long.

4. If you want to know how far away the mountain in front of you is, you can ask the sound to help measure it. The sound can travel 331 meters per second, so shout at the mountain, look at it for a few more seconds and you can hear the echo, multiply 331 by the time you hear the echo, and divide it by 2 to calculate it.

5. "Celestial Recorders" Corals inchworm scientists found that polyps record time on their bodies: they "carve" a ring pattern on the body wall every day, and "carve" 365 a year, neither more nor less. So to know their age, just count the rings on their walls.

Scientists have also found that 100 million years ago, polyps "carved" on their bodies every year are not 365, but 400. The reason is that at that time the rotation of the earth was only one hour a day, and a year was not 365 days, but 400 days.

?pwd=2d72 Extraction code: 2d72 "Mathematical Journey" mainly tells the 100 major discoveries in the history of the development of mathematics, and shows the development and progress of mathematics through these major discoveries.

From prehistory to the Middle Ages, the Renaissance, the Enlightenment, and all the way to modern times, it describes the major events, anecdotes, and famous mathematicians of mathematics in various periods. It comprehensively displays the charm of mathematics, which is vivid and vivid, and at the same time inspires thinking, and is a popular science book with strong applicability.

"The Journey of Mathematics" mainly tells the 100 major discoveries in the history of the development of mathematics, and shows the development and progress of mathematics through these major discoveries. From prehistory to the Middle Ages, the Renaissance, the Enlightenment, and all the way to modern times, it describes the major events, anecdotes, and famous mathematicians of mathematics in various periods. It comprehensively displays the charm of mathematics, which is vivid and vivid, and at the same time inspires thinking, and is a popular science book with strong applicability.