Is it correct to say directly in rheology that cats are liquids?

Incorrect. Cats are liquids and not because of fluid mechanics. This is because cats are soft and can move through all kinds of narrow spaces, which is why cats are liquids.

The problem was first analyzed in 2014 by a researcher named Tom, who published an article in the Interesting Animals section of Bored Panda magazine titled "15 Proofs That Cats Are Liquids." This is also the statement that cats are liquids that will circulate on the Internet in the future**. Tom from 15 experiments, using different breeds of cats and different shapes of containers, he concluded:

Cats have a tendency to take on the shape of containers, which is an essential property of liquids and gases. Also, cats curled up in different shapes in experiments showed negligible changes in volume, which is a characteristic of liquids.

Later that year, perhaps dissatisfied with the rigorous qualitative aspects of Tom's research and the judging criteria for Bored Panda, French scientist Marc-Antoin Fardin conducted further research at Paris Ecole Normale Superieure, using a stricter definition of "liquid" and publishing an article entitled " On the rheology of cats".

Fadin found that cats exhibited richer and more complex rheological behaviors than Bored Panda's findings, so it would be inappropriate to strictly say that "cats are liquids."

Fadin was awarded the 2017 Funny Nobel Prize in Physics for his advances in the study of "rheology of cats" and for his work in the study of continuum mechanics.

Fadding's ** discusses this question in the language of modern rheology, the branch of mechanics that studies the motion of fluids and solid materials. Rheology itself is also a branch of continuum mechanics, which studies the motion of macroscopic bodies of matter that are ideally considered to completely fill the space they occupy (i.e., ignore molecular structure and other microscopic defects and discontinuities).

The types of materials studied in continuum mechanics can be divided on a scale based on how easy it is to change shape. At one end of this scale is the ideal Newtonian fluid, which has no resistance to the applied stress and will continue to change shape or deform as long as the stress is applied, no matter how weak the stress is. At the other end is an ideally rigid solid that does not deform under any stress.

Since fluid motion is accumulated by infinitesimal deformations, we can also say that a Newtonian fluid is a sample of matter that can only flow but cannot be pushed, whereas a rigid solid is a sample of matter that can only be pushed but cannot flow. Rheology is the study of the movement of matter that falls between these two scales, and depending on the environment, it can have both solid and liquid properties.

For example, glaciers are made of solid ice, and when viewed in the short term, they appear to be solid, but on a long enough time scale, the glacier moves and flows like a river.

It was found that the complex properties of these materials could no longer be explained using classical elastic theory, plasticity theory, and Newtonian fluid theory, and the idea of rheology was born.

Mainly because a lot of the state of cats is particularly fluid-like, so it is considered a liquid in fluid mechanics.

Here is something to know about in rheological mechanics. Some questions about some stresses, temperature changes, etc.

Because the form of a cat has some characteristics of liquid.

Rheology is a new branch of mechanics, which mainly studies the deformation and flow of materials under stress, strain, temperature, humidity, radiation, etc., which are related to time factors.

Because cats are softer, and cats can be placed in containers.

British physicists Maxwell and Kelvin recognized early on that changes in materials are closely related to the time effect.

Cats curled up in different shapes have negligible changes in volume, which is a characteristic of liquids.

Although it has always been said that "cats are liquids", because cats have 230 247 bones, which are 24 more than humans, these bones make the cat's body more flexible, and it has no collarbones, and the fibrocartilage between the vertebrae is also very strong, and it feels like a liquid.

But the following ** can really illustrate this theory!

A white liquid filled the tank, and there were unidentified floating objects on the surface.

A lump of things, with long eyes.

It appears to be some kind of cheese-like object melting.

It's not a cat, it's a goldfish.

Isn't this a pot of flour?

This law of movement is completely consistent with the sprinkling of water.

Please click Enter a description.

The guy who is about to melt 100%.

The new Cappuccino?

Then this one should belong to ice cream.

Too much! Overflowing!

Is it solid, or is it liquid?

It's like this every summer.

It looks like it's going to drip from above to below.

Wouldn't it be a surprise if you were caught off guard?

It can be changed to match the shape of the container.

It can be quickly paved into a two-dimensional one.

So it's not difficult to carry.

The liquid that wary of tsundere is it.

What's going on for dinner today?

Since the cat is liquid, don't push too hard when masturbating, so as not to slip away!

"Sucking" has become an activity that many people like to see.

Because it feels like a small analysis, cats can get into it.

Because cats can burrow into all kinds of places, just like water.

Because the flexibility of cats is so good, it's the same as water.

Because there are so many places that he can squeeze through.

Because the cat's body is very soft.

It's a joke that cats are softer.

Because it seems that there are no bones, ** are all hidden in.

It's a funny way of saying it.

Cats are both solid and liquid, and the 2017 Funny Nobel Prize in Physics was awarded to Marc-Antoine Fardin, a researcher from the University of Lyon, France, who proved the theory that "cats can be both solid and liquid" through the "bottom boura number" in rheology, to know why cats "can be both solid and liquid", we need to understand some basic concepts first:

Solid, which is a state in which matter maintains its shape and volume;

Liquid, which is a state in which a substance retains its volume but adapts to the shape of its environment;

Gas, which is a state in which matter expands and occupies all available volume;

The bottom wave pull number (DE), a dimensionless quantity in rheology, is used to describe the fluidity of a material under specific conditions, defined as the ratio of the relaxation time to the observed time scale. When de<<1, the material exhibits a fluid-like mechanical response. When de>>1, the material exhibits a solid-like mechanical response.

Don't get it? Here are a few chestnuts:

How to get a solid cat? On a short time scale, a standing, jumping cat would be considered a solid cat.

This is because the relaxation time of cats (between 1 second and 1 minute) is much greater than 1 compared to the short observation time (1 second). In other words, one second you see that the cat is still alive, and the next second it may become a "beach".

Are cats solid or liquid? The Nobel laureate says the answer, and after reading the doubtful life!

You'd never imagine how they could get out of a hole as small as a Coke bottle, and you can't imagine how it could curl itself up in a container the size of a plate. Perhaps it is because they can change their physical state at will, so they are called the "most cute" in the pet world.

"Alive" is probably the most vivid expression of these soft little fat people. You might think I'm talking serious nonsense. But the truth is, I'm really a scientifically proven nonsense.

After practical arguments from the hilarious scientific community, it was proved that cats in their liquid form do exist.

In the 2017 Funny Nobel Prize in Physics, researcher Marc-Antoine Fardin from the University of Lyon, France, proved the theory that "cats can be both solid and liquid" through the "bottom wave number" in rheology! Don't take you to believe it, after all, the humorous scientific community has already demonstrated.

Whether it's a two-dimensional or three-dimensional cat, a solid cat or a liquid cat, as long as it's a meow, it will fascinate people. Explaining the daily life of cats from such esoteric knowledge of physics is not only logical but also humorous. Excellent!

Sum up. Both theory and practice have proven that cats are diverse. whatever, is the world's best coquettish, gentle and cute cat, yes.

Because cats can be weak and boneless, they can change shape according to the environment and mood.

The 017 Funny Nobel Prize in Physics was awarded to Marc-Antoine Fardin, a researcher from the University of Lyon, France, who proved the theory that "cats can be both solid and liquid" through the "bottom wave number" in rheology, which is really a scientific cat suck!

For long time scales, when you find a cat occupying a wine glass, glassware, you can consider the cat to be fluid. However, in terms of the age of the cat, there is also a difference in mobility between younger cats and older cats.

Older cats have a longer relaxation time than kittens, which can reach several hours. In terms of liquid and gaseous states alone, older cats tend to be more gaseous.

In addition to the cat's motor status and age, the cat's mobility is also related to the surfaces they come into contact with. For example, the lotus leaf effect, the roughness of the fur, the low affinity with smooth surfaces, and the stickiness on vertical surfaces.

It's just a joke to say that a cat is a liquid, because it's just too flexible and soft.

Cats like to drill into boxes and all kinds of small spaces, and the key is that every time you look at such a big block, you can always easily drill into it, just like liquid, without any effort, this contrast is quite cute.

In terms of the age of the cat, the mobility of the younger cat and the older cat is also different, compared to the kitten, the older cat has a longer relaxation time, which can reach several hours; In terms of liquid and gaseous states alone, older cats tend to be more gaseous.

Of course, in addition to the cat's motor status and age, the cat's mobility is also related to the surfaces they touch. For example, the lotus leaf effect, the roughness of the fur, the low affinity with smooth surfaces, the stickiness on vertical surfaces, and so on.

Why even scientists say that cats are liquids, I see.

To put it simply, cats have strong elastic capacity and can fit perfectly into many containers.

The skeleton of cats is relatively curved, and the body size is small, so they can burrow or lie down in places smaller than their own bodies.

Because the cat's body is very flexible and soft like a liquid.

Because when the cat is running away, it is like a liquid.

Yes in a way.

It's the law.

Compared to women, cats may be made of water.

Because cats are lazy animals, they are as gentle as liquids.

It's just an exaggeration, because cats are soft and very agile.

Cats are soft and likable like liquids.

Cats have nine lives, are relatively soft and elastic.

Cats are soft and cute, spread out there, and with their coat color, they are visually similar to liquids.

Recently, this age-old mystery has finally been revealed!

Marc-Antoine Fardin, a scientist from the University of Lyon in France, studied the problem carefully and came to scientific conclusions.

It's not a title party, it's real science. His research is concrete:

Question: What is the difference between solid and liquid?

Of course, when we were in elementary school, we learned that solids are solid, and liquids are liquid and flow around.

However, Fontaine felt that the problem was not so simple: look at these cats, they can also run around and sleep in a mess. Why aren't cats liquid?

To do this, he measured the Deborah number of cats in various environments.

The Deborah number (DE), a dimensionless quantity in rheology, is used to describe the fluidity of a material under certain conditions, defined as the ratio of the relaxation time to the observed time scale.

When de<<1, the material exhibits a fluid-like mechanical response (which can be understood as a liquid); When de>>1, the material exhibits a solid-like mechanical response (which can be understood as solid).

After calculation, Fontaine found that the cat's DE was quite close to 1 ......On shorter time frames, cats have a DE greater than 1, so we feel that cats are solid.

However, as long as the cat falls asleep in a cup, basin or other container, after a long time, and then measured, then the de is less than 1 ......

That's right, a sleeping cat is a liquid ...... by scientific definition

Moreover, Fontaine also found that young cats have a lower DE number than adult cats, that is, kittens are closer to liquid than old cats.

In 2014, Fontaine published the study, which immediately caused a sensation in the physics community. In the end, Fontaine finally won the Nobel Prize for this research!

It's a funny Nobel Prize

The 27th Nobel Prize for Comedy was held at Harvard University.

"Research on the Fluid Mechanics of Cats" won the Funny Physics Prize, a real Nobel Prize winner in physics awarded to Fontaine, and a prize of 10 billion!

It's just a prize ...... 10 billion Zimbabwean dollars

Hawkers, I don't know how many packs of cat food and how many bags of cat litter Professor Fontaine can buy?

The IG Nobel Prizes are awarded to "non-mainstream" research that "seems to make people laugh, but is actually thought-provoking". The award was also created to recognise research that is "different", to show respect for imagination and to inspire interest in the fields of science, medicine and technology.