How do you separate raw and hard boiled eggs that are mixed together?

a) Place the eggs on the table and twist the eggs quickly with your hands. Observe the rotation after leaving the hand: if the egg rotates smoothly, it is a cooked egg; On the other hand, if it does not rotate smoothly, it is a raw egg.

When the cooked egg is twisted, the white yolk is twisted together, so it turns smoothly. Conversely, when the raw egg is twisted, only the eggshell is stressed, while the egg white and yolk are hardly stressed. Newton's first law (law of inertia) shows that egg whites and egg yolks are almost immobile due to inertia.

As a result, the rotation of the eggshell is slowed down by the egg whites.

2) After the egg has been rotated for a period of time, suddenly press the egg for an instant, and immediately withdraw your hand. If it no longer rotates after retracting the hand, it is a cooked egg; On the contrary, if you can automatically turn a few more times after withdrawing your hand, it is a raw egg.

Because when the cooked egg is stopped, the eggshell, egg white, and yolk all stop, and after the hand is withdrawn, it continues to stand still. On the contrary, when the raw egg is pressed, the shell only stops temporarily, but the egg white and yolk still rotate due to inertia. Therefore, after withdrawing the hand, it can drive the eggshell to turn a few more times.

Give it a spin. The yolk and white of a raw egg are liquid, and when it rotates, the shell rotates along with the liquid inside. When you stop the egg, only the shell stops spinning, and the yolk and egg white inside still keep turning.

Therefore, if you loosen the egg at this time, the yolk will cause the egg to turn again.

The yolk and white of a boiled egg are solid, and when it rotates, the shell rotates along with the yolk and white. When you stop the egg, it stops inside and out, and if you let go of the egg, it won't turn again. ”

1. The spinning ** egg cannot be rotated; Hard-boiled eggs can be rotated.

2. Shake: The raw egg shakes and shakes; Hard-boiled eggs are not.

3. Appearance: There are stains on the surface of the raw eggs (the eggs just laid by the chicken are wet); Hard-boiled eggs are cleaner.

4. Illumination: Raw eggs have a sense of transparency to sunlight; Hard-boiled eggs are not.

5. Temperature: The temperature of raw eggs is lower than that of cooked eggs when touched by hand (for a long time).

Spin the eggs! What can be turned up is cooked, and what can't be turned is raw!

I watched the Korean drama "Sister-in-law is 19 Years Old" and learned a method, which is to put two eggs on the table and rotate them at the same time, touch the eggs with the index fingers of both hands at the same time, and the cooked eggs that immediately stop spinning are the raw eggs.

Find a flat place to turn the egg up, if the egg can turn upright, it means that it is cooked; If it can't turn upright, a few times horizontally, it means it's raw. (It's a life experience).

Illuminated with light, raw eggs are transparent, and cooked eggs are not transparent.

1. Rotation method.

1) Place the egg on the table, then stand up and spin, if the egg rotates on the table for a while and slowly stops, it means that it is a cooked egg, because the inside of the cooked egg is solid.

2) Put the egg on the table and rotate it vertically, because the inside of the raw egg is liquid, when we spin the hail to turn the egg, it will stop on the table and fall to the ground horizontally.

2. Sunlight or light exposure.

1) If you put the eggs in the sun or under light, the cooked eggs will appear opaque.

2) When the eggs are irradiated under a light, the raw eggs will appear transparent.

3. Test the water.

1) The proportion of boiled eggs is large, if it is placed in water, the boiled eggs sink to the bottom.

2) The specific gravity of raw eggs is small, and the raw eggs keep the grinding sail in a suspended state.

4. Shake the eggs with your hands.

1) Shake the egg with your hand, and there is no certain sense of vibration, indicating that it is a cooked egg.

2) Hold the chicken and shake it in your hand to make the raw eggs flow.

5. Tea color test.

1) Put the eggs in the tea, the darker eggs are the hard-boiled eggs.

2) Put the eggs in the tea, the eggs that become lighter are raw eggs.

There are many ways to distinguish between them, the simplest and will not cause harm to the eggs is light, the light can be transmitted to the raw eggs, the light can not be transmitted to the cooked eggs, followed by the ear to shake it gently, the raw egg can feel the movement inside will make a slight sound, and the cooked one does not move. Of course, for people who often cook and deal with eggs, they can be distinguished by the feeling of holding it in their hands, and this feeling can only be understood but not expressed.

First, put the hard-boiled eggs to your ears and shake them gently to listen to the movement inside. Raw eggs will have a slight water-like sound, while cooked eggs will not make any sound at all.

Here's how it works: what is inside a raw egg is liquid; And the contents of the boiled egg are already solid, so there will be no sound when shaken.

Second: Place two eggs on a level table and gently rotate them. Hard-boiled eggs turn smoothly, while raw eggs don't turn well at all.

The principle is: the eggshell, egg white, and yolk of the cooked egg have become a solid whole, and when it is rotated, although the eggshell is stressed, the egg white yolk can rotate together, so it rotates smoothly. On the contrary, when a raw egg rotates, the eggshell is stressed, while the egg white and yolk are still liquid, and the egg white and yolk are not easy to rotate with the eggshell because of inertia.

As a result, the raw eggs do not turn well.

The third way: look at the inside of the two eggs in front of the light. Raw eggs are a bit transparent, while cooked eggs are not very transparent. Here's how it works: raw eggs are liquid inside and look transparent; The inside of boiled eggs is solid, and the light transmittance is naturally poor.

Fourth: Rotation method Put two raw and cooked eggs in the same plane and rotate at the same time, and the first to stop rotating is the raw egg. Because the inside of a raw egg is liquid, after rotating the egg, the eggshell of the egg is stressed, and the liquid inside will hinder the egg from rotating, so it will not rotate on the table for too long.

If it is a boiled egg, it will rotate for a long time, because after cooking, the liquid inside the egg has become solid, and when it rotates, it is the egg yolk protein that rotates at the same time, so it is the cooked egg that rotates for a long time.

You can make two eggs turn in circles on the table, the one that turns faster is a raw egg, and the one that turns slower is a hard-boiled egg.

1. Rotation method. Place the egg that needs to be identified on a level smooth table, the table should not be flat, then place the egg on the table, rotate the egg on the table, and then use one finger to suddenly hold down the egg to prevent it from spinning, see if the egg continues to rotate, if the egg continues to rotate, it is raw, and vice versa.

2. Look at the appearance and feel. The appearance of raw eggs is relatively rough, and if you look closely, you can see the small protrusions of each grain, and the appearance of cooked eggs is relatively smooth, and the feel is smoother than that of raw eggs.

3. Smell the smell. If it is a freshly boiled egg, you can smell a relatively strong aroma of cooked eggs. Raw eggs, on the other hand, have a slight lime taste.

Appearance: Raw and hard-boiled eggs are not easy to distinguish from each other in appearance. However, if you look closely, the raw eggs are smoother.

2.Feeling: Pick it up and shake it, there is a sense of shaking is raw.

3.Eggs that are laid flat or upright are rotated, and the inside of the raw eggs is a viscous gel that does not rotate easily. Therefore, if you put raw eggs and boiled eggs flat, you can turn them up, and those that can't turn them are raw eggs.

Put the eggs vertically, and what can be turned up is cooked eggs, and what can't be turned up is raw eggs 4Put the eggs in the tea, the darker eggs are the cooked eggs, the eggs are the lighter ones are the raw eggs5Put the eggs in water as if they were water, the raw eggs sink in the water, and the cooked eggs float in the water.

6: Place them on the table and rotate them, then gently stop them with your fingers, the one that stops immediately is cooked, and the one that is still slightly rotating is raw. This is the principle of inertia, and raw eggs have inertia due to the fact that the yolk inside is fluid.

7.Using a paper tube, place the egg on one end of the paper tube, facing the light, from the other end of the paper tube, the transparent is the raw egg, and the opaque is the cooked egg.

Then you can also find out, take out the egg and shake it, the one that can shake is the raw egg, on the contrary, the other is the egg!

You can shake it, and what you shake is raw. You can also use a lamp to shine, and the one that shines brightly is raw.

You can turn the eggs around, and the cooked eggs are turned very quickly. Raw eggs don't turn up.

I have a very simple method, which is to put the egg on the table and turn it, the raw one can't turn up, and the cooked one can turn a few times.

Raw and hard-boiled eggs are mixed together, and the way to distinguish them is to turn them upright, and those that can be turned up are cooked eggs, and those that cannot be rotated stably are raw eggs.

Mix the hard-boiled eggs together and shake them down, and the raw eggs can be heard shaking.

Holding it in his hand and shaking it back and forth, I felt that there was a light impact on the inside of the egg, which was a raw egg.

Rotation is the most practical way to separate, cooked is the whole, and the number of revolutions is much more.

You can distinguish the hard-boiled eggs by shaking them, and they are so cooked that they can't shake them.

Summary. Hello dear, two eggs boiled together why an egg is raw and an egg is cooked: uneven heating.

The cooked egg has become a solid whole, but the raw egg cannot rotate immediately because of the liquid yolk and egg whites inside, and its inertia hinders the rotation of the eggshell; The egg white and egg yolk play the role of "brake" here.

Dear, hello, two eggs are boiled together Why is it that an egg is cooked when an egg is cooked: uneven heating. The cooked egg has become a solid whole, but the raw egg cannot rotate immediately because of the liquid yolk and egg whites inside, and its inertia hinders the rotation of the eggshell; The egg white and egg yolk play the role of "brake" here.

The situation is also different between raw and cooked eggs when the rotation stops. A whirling cooked egg, as soon as you squeeze it with your hand, the shed will stop immediately, but the raw egg, although it stops when your hand touches it, if you immediately let go of your hand, it will continue to rotate slightly. This is still the inertia that Fang Kuan said, although the eggshell is stopped, the egg yolk and egg white inside are still rotating; As for cooked eggs, the yolk and egg whites inside stop at the same time as the outer eggshell.