Why can t you say that 20 is twice as much as 10?

The direct cause is the data type.

Not allowed, the root cause is Celsius.

Proportions do not make sense in physics ......

Generally speaking, there are four types of data, which are:CategorizationSequencingConstant distancewithFixed ratio

Categorized data, which means that the numbers only represent categories, there is no order, they cannot be compared with the size, and they cannot be counted in four rules.

For example, zip code, you can't say that the 100086 number is 100000 number + 86 number, nor can you say that the 100086 is bigger than the 100085, and having a 100086 number and a 100088 number does not mean that there must be a 100087 number;

Sequencing data, the number represents "ordinal number" or "rank", there is an order, you can compare the size, but you can't count the four.

For example, you can say that a five-star hotel is higher than a four-star hotel, but you can't say that a three-star + two-star is a five-star, so this kind of data calculation is meaningless.

Distance data, there is no absolute zero point (0 does not mean none), positive and negative can exist at the same time, there is an order, the size can be compared, the difference of the data is meaningful, but the proportion is meaningless, it can be added or subtracted, it cannot be multiplied and divided (but it can be calculated as an average.

For example, you can say that the temperature in Celsius is 20 more than 10, and it is 10 higher, but it cannot be said to be twice as high, or twice as high.

For example, you can say that two o'clock is later than one o'clock and one hour later, but you can't say that two o'clock is twice as late as one o'clock.

Fixed-ratio data, there is an absolute zero point (0 means none), positive and negative do not exist at the same time, there is an order, the size can be compared, the data difference and the proportion are meaningful, and four operations can be performed.

For example, Kelvin temperature.

You could say that 20k is higher than 10k, and 10k higher, and 20k is twice as high as 10k.

For example, you can say that two hours are longer than one hour, and one hour longer, and two hours is twice as long as one hour.

Therefore, from this problem, the direct reason is that the Celsius temperature is a fixed distance data, so the multiple cannot be calculated.

The fundamental reason why Celsius temperature is a fixed distance data is the physical meaning of temperature.

Anyone who has studied physics knows that only at the Kelvin temperature scale.

, multiplication and division of temperature makes sense, such as "Equation of State for Ideal Gases."

Therefore, the laws of physics determine that Celsius temperature is a fixed distance data rather than a fixed ratio data, and it also determines that Celsius temperature cannot be counted as a multiple.

Why can't it be said that 20 degrees Celsius is twice as high as 10 degrees Celsius?

Because 16 = 8 * 2, so Qing Zheng 25 * 16 is equivalent to 25 * 8 * 2, that is, equal to (25 * 8) * 2, so that Qin can be seen from this frank and clear, it is 2 times that of 25 * 8.

The ascension to 470 160 is 47 16 repentance 100 times Bi Xiaoji.

Because. The only thing that is closed is to shoot and train in a sedan chair.

470 160 is 100 times that of 47 16.

It can be calculated according to the question column as follows:

Fold. 990 150 100 is a multiple of 500 250 60.

Several times of times here means to add as equal to the original number, equal to two of the original number.

Several times: pronunciation: jǐ bèi

Sentence formation: One number expands several times, and the other number does not change, and their product is likewise expanded several times.

Don't look at how well others are doing now, people didn't know how hard they had worked before.

Ants are able to lift things that weigh several times their own weight.

We have a colleague who weighs several times as much as mine.

He has too little hair, and my hair is at least several times his.

Why don't you just hear about the collapse of the apocalypse? You, are you going to eat first?

Because 4000 4000 = 160000000, 8000 8000 = 64000000, so the latter is 64 times the previous one of the scattered trapping Zen liquid, 16 = 4 times.

It can be simplified to be tall, as the above formula can be simplified to.

8 8 (4 4) = 64 16 = 4, the source of the sedan car to Qi crack vertical 8000 8000 is 4000 4000 times of 4000.

With a difference of 4 times, the product of the last two numbers is 4 times the product of the first two numbers.

The following zero is the same number, you only need to look: 4 4 and 8 8, that is, 16 and 64 Guan Yu Heng system.

64 is 4 times that of 16, the difference is 64-16 = 48, (64-16) 16 = 3, the difference is 3 times.

4000 4000 and 8000 8000 The product of their slippery blind pins differs by a factor of four. In other words, the divine banquet is to say, Xinyou 64000000 is 4 times that of 160000000.

That is, 4000 4000 is equal to 1 4 of 8000 8000, that is, 8000 8000 is 4 times that of 4000 4000. Then 8000 8000 and 4000 4000 are 3 times different from slow purity.

The difference is 4 times, 8000 is twice as much as 4000, and the multiplication of 2 is 4 times.

2x2=4A: The volume of 8000x8000 is 4 times the buried infiltration of the synovial fluid source of 4000x4000.

If a number is not zero, another number equal to it is a "multiple", and another number is a "multiple of two".

Multiple: An integer is divisible by another integer, and this integer is a multiple of another integer.