Why do hard boiled eggs spin upright?

In fact, part of the rotational energy of the cooked egg is converted into a horizontal thrust under the friction between the eggshell and the tabletop, which changes the direction of the long axis of the cooked egg, and changes from horizontal to straight in a series of shakes. Whereas, the core of a raw egg is liquid, which absorbs the rotational energy, so that it cannot be converted into thrust, so the raw egg does not stand up when it rotates.

The key to this phenomenon is to have the right amount of friction between the eggshell and the tabletop. On a completely smooth table, the spinning egg will not stand upright. And the desktop is too rough. In addition, the speed at which the egg rotates should be appropriate, and below the critical speed of about 10 revolutions per second, the egg will not stand upright.

Scientists also found that whether the egg can stand upright has nothing to do with the initial direction of its rotation, and the egg can also rotate at either end, because the egg green and the egg yolk are not solidified when the egg is raw, and the egg yolk can not be rotated left and right in the egg green when it rotates, and when the egg is cooked, the egg green and the egg yolk become one, so there is no resistance to make him unable to rotate, so he can rotate vertically!

When the egg is cooked, the egg green and the yolk become one, so there is no resistance to make him unable to rotate, so he can rotate vertically!

Eggs, also known as chicken eggs, are eggs laid by hens, which have a hard shell on the outside, air chambers inside, egg white and yolk parts, egg yolk in the egg shell, egg shell, no egg shell. An egg weighs about 50 grams, of which the protein content is 7 grams. The amino acid ratio in eggs is very suitable for the physiological needs of the human body, easy to be absorbed by the body, the nutritional value is very high, it is one of the foods commonly eaten by humans, the protein content is high, and it is conducive to the normal metabolism of the body.

Put the hard-boiled egg on the table and spin it, if the force is right, it will stand up when it turns around, which is not the case with raw eggs because eggs contain a lot of protein that can improve the nutritional value of the eggs. The physical explanation for this phenomenon was made by British and Japanese scientists. The hard-boiled egg will stand up as it spins, which seems to defy the laws of physics, as its center of gravity will increase and the energy of the whole system will seem to increase, so the process will seem impossible.

Scientists reported in the British journal Nature published on the 28th that under the friction between the eggshell and the tabletop, the rotational energy of some cooked eggs is converted into horizontal thrust, which makes the long axis direction of the cooked egg change, and in a series of shakes, it changes from horizontal to vertical, thus changing the direction of its long axis, instead of the original direction. At this time, my father's physical strength was finally exhausted. Scientists have also found that whether an egg is able to stand up or not has nothing to do with its initial direction of rotation.

Eggs, also known as chicken eggs, chickens are eggs laid by hens, with a hard shell on the outside and air chambers, egg whites and yolks inside. Rich in cholesterol and rich in nutrients. An egg weighs about 50 grams and contains 7 grams of protein.

The amino acid ratio of egg protein is suitable for the physiological needs of the human body, easy to be absorbed by the body, the utilization rate is as high as 98%, the nutritional value is high, and it is one of the foods commonly eaten by humans. Hard-boiled eggs can be spun upright and upright. British and Japanese scientists have come up with a physical explanation for this phenomenon.

The boiled egg stands erect when it rotates, which seems to violate the laws of physics as its center of gravity rises and the energy of the whole system seems to increase. Scientists reported in the British journal "Nature" released on the 28th that in fact, it is part of the rotational energy of the cooked egg that is converted into a horizontal thrust under the friction between the eggshell and the tabletop, so that the cooked egg changes the direction of the long axis in a series of shakes, from horizontal to vertical. Whereas, the core of a raw egg is liquid and absorbs rotational energy and cannot be converted into thrust, so the raw egg will not stand upright during rotation.

Scientists say the key to this phenomenon is the right amount of friction between the eggshell and the tabletop. On a completely smooth table, the spinning eggs do not stand upright. And the desktop is too rough.

In addition, the speed of rotation of the egg should also be suitable, below the critical speed of 10 times per second, the egg will not stand upright. Scientists have also found that whether an egg can stand up or not is independent of the initial direction of its rotation, and that the egg can also stand up and rotate in either way.

Eggs, also known as chicken eggs, are eggs laid by hens, with a hard shell on the outside and air cells, egg white, and yolk inside. Rich in cholesterol and rich in nutrients. An egg weighs 50 grams and contains 7 grams of protein.

The amino acid ratio of egg protein is suitable for the physiological needs of the human body and is easily absorbed by the body. The utilization rate is more than 98%, the nutritional value is high, and it is one of the foods commonly eaten by human beings. The whole protein is egg-shaped, the size of one head, and accounts for about 11% of the total protein volume.

Eggshells can be divided into upper shell membrane, lower shell skin, and air cell. The main ingredient of the eggshell is calcium carbonate (CA style), which accounts for about 91% of the weight of the entire eggshell. Its calcium composition is the same as that of pearls, oysters, beef bones, fish, etc., and is a good source of calcium.

In addition, the eggshell also contains about 5% carbonate (MA 100 million phosphate (CA style) and gum (CO confirmation). Cooked eggs can spin upright, and if the force is right, it will stand upright, while raw egg whites will not. British and Japanese scientists have come up with a physical explanation for this phenomenon.

The hard-boiled egg stands upright during rotation, which seems to defy the laws of physics as its center of gravity rises and the whole system seems to increase energy. In fact, part of the rotational energy of the cooked egg, under the action of friction between the eggshell and the tabletop, becomes a thrust in the horizontal direction, changing the direction of the long axis of the cooked egg, changing from horizontal to vertical in a series of shaking and **. Whereas, the core of a raw egg is a liquid that absorbs the rotational energy so that it cannot be converted into thrust, so the raw egg does not stand up.

Scientists say the key to this phenomenon is the right amount of friction between the eggshell and the tabletop. On a completely smooth table, the spinning egg will not be straight. And the desktop is too rough.

In addition, the speed at which the eggs rotate should be appropriate. Below the critical velocity of 10 beats per second, the egg will not stand upright. Scientists have also found that whether an egg can stand upright or not is independent of the initial direction of its rotation, and that the egg can also be fixed straight at either end.

1. The reason why boiled eggs can stand upright is because the inside of the boiled eggs has solidified into one.

2. When this cute little egg is still raw, the yolk and egg white in it are separated, and when this little egg is upgraded to a cooked egg, the egg white inside the eggshell solidifies due to the high temperature, and solidifies together with the egg yolk, reducing the dispersion inside.

3. This is why hard-boiled eggs can stand and rotate upright.