How is the "frozen egg" formed? Why are there frozen eggs on Finnish beaches?

Do you know how "frozen eggs" are formed? Next, let me explain it to you!

Recently, a very strange thing happened in Finland. It is said that there are countless frozen eggs on a beach in Finland. Then someone has to ask, why are there so many oocyte cryopreservation? What is this frozen egg? Let's analyze the secrets together and see what is going on. Interested netizens can take a look together!

What is an ice egg?

In fact, there are many sayings about frozen eggs. Conventional frozen eggs are actually egg products made of fresh eggs after shelling, pretreatment and freezing. Frozen eggs refer to egg products that are processed and frozen from fresh eggs or other poultry eggs, whole eggs, protein or yolk. Such as: pasteurized frozen whole chicken eggs, frozen egg yolks and frozen egg whites.

There is also an ice cube that looks like an egg, which recently appeared near the beach in Finland, as shown below:

This really looks like an egg, my mother.

How did oocyte cryopreservation come into being?

Experts from the Finnish Meteorological Institute said that although such ice hockey is not common or rare, it is not supernatural. There are many factors that form this kind of ice hockey, which need to be combined with many conditions. As long as the conditions of air and water close to freezing state are just right, ice hockey can be formed. The shallow sandy coast and the appropriate ups and downs of icy seawater can also make ice hockey form.

But the formation of ice hockey also depends on other conditions, including snowflakes, pebbles on the beach and even a small floating object on the beach. Water near freezing point will freeze on objects. When the appropriate wind blows, the ice will accumulate thicker and thicker with the ups and downs of the sea, and eventually form ice hockey, which is the reason for the formation of this spectacular scene in Finland.

Will frozen eggs melt?

It will definitely melt, but it may take a long time.

It is understood that this magical phenomenon has attracted a large number of tourists to visit here. Tourists take a 30-minute ferry ride to Luoto Island, just to see the beautiful scenery. This is an amazing sight. The whole beach is covered with ice hockey. Some tourists also said that they have seen ice hockey at the seaside, but they have never seen such a wide coverage of ice hockey, which is very rare.

Nature is really wonderful, with all kinds of strange phenomena. Some things can't even be explained by the current scientific field. This is the magic of nature.

Why are there so many extreme weather on the earth now?

Extreme weather and climate events have brought great loss of life and property to human beings, especially in recent years, the occurrence of extreme weather and climate events has become more and more frequent and intense, which makes scientists very worried. So, what are the reasons for the frequent occurrence of extreme weather and climate events? Scientists believe that this is the result of internal and external factors such as the increase of greenhouse gas concentration, global warming, El Ni? o phenomenon, the dynamic movement of the earth itself, human intervention in nature, the change of solar radiation, and the deviation of the earth's orbit.

Scientists also believe that the earth has a natural feedback mechanism to climate change, which can expand or reduce external positive and negative forces to maintain the stability of the earth's climate system. Without such a mechanism, the climate system may go to extremes, either too hot or too cold. However, if the external pressure is too large, it may lead to the collapse of the climate system, so disastrous extreme weather and climate events will occur frequently.

global warming

Glaciation is considered to be the most sensitive indicator of climate change-when the climate gets cold, glaciers extend forward; When the climate warms, glaciers retreat. According to the glacier melting data, aerial photos and maps collected every year, scientists have compiled a detailed list of more than 654.38 million glaciers in the world, which proves that the global glaciers are indeed shrinking significantly. Especially since the mid-1980s, glaciers have been melting rapidly. This shows that global warming is an indisputable fact.

According to the data of the World Meteorological Organization (WMO), the global surface temperature (representing winter) in June and April of 20 16 was 1.89 and 1.37℃, respectively, which were higher than the average level in the same period in history and exceeded the highest level in history 1998. From June to July, 2007, the national average temperature was 195 1, which was a continuous high temperature year since1/year. Global warming can not only change the average temperature, but also increase the variability of climate, that is, increase the gap between the highest and lowest values. The increase of average temperature and temperature variability may lead to extreme weather and climate events.

How does global warming affect extreme weather and climate events? This can be seen from two aspects. From the point of view of probability, if the weather in a certain area or place is normally distributed under the average conditions for many years, then the weather in the minimax state is not easy to occur; From the temperature point of view, if the probability of hot and cold weather is small, then the possibility of extreme hot and cold weather is even smaller. Global warming increases the possibility of average temperature and local high temperature weather. Extreme high temperature weather occurs frequently, and extreme weather events such as high temperature heat waves are more frequent.

According to the principle of meteorology, global warming makes the surface temperature rise, the water surface evaporation increases, the total amount of water vapor evaporated into the atmosphere increases, and the water cycle accelerates. With the increase of atmospheric water content, precipitation will increase in a short time. Extreme precipitation events such as heavy rain, blizzard and local floods occur frequently. Strong convective weather such as tornadoes, thunderstorms, storms and hail will also increase in some areas. In addition, the evaporation of plants, soil, lakes and reservoirs is accelerating, and the depletion of water is increasing. As the temperature rises, some areas will suffer more frequent, more lasting or more serious droughts.

solar activity

Some studies show that the increase of solar radiation during sunspot activity will also have an impact on global warming. Scientists mainly understand the changes of solar activity in the past few hundred years by observing the changes of sunspots and beryllium isotopes. For the earth's climate system, the sun is the biggest heat source (as shown by tidal power generation, the moon's gravity provides less energy). Solar energy is converted into heat energy on the earth's surface and becomes an inseparable part of the earth's climate. In the short term, the sun also has various changes, including the 1 1 year cycle of sunspot activity. The change of solar radiation intensity is considered to have influenced and triggered the Little Ice Age and warm coral phenomenon in 1900 ~ 1950. At present, the nature of the periodic change of solar activity is not complete.

Earth orbit change

The periodic change of the earth's orbit is an extension of the influence of the sun on the earth to a certain extent-subtle changes in the earth's orbit will lead to changes in the distribution and quantity of sunlight reaching the earth's surface. The periodic change of the earth's orbit is called Milankovic cycle, which directly affects the increase or decrease of the solar radiation received by the earth, thus causing the change of the earth's climate system and the retreat of the earth's glaciers. In addition, there are other subtle changes, such as the repeated advance and retreat of the Sahara desert, which correspond to the periodic changes of the earth's orbit.

Holocene glaciers and interglacial cycles are an important example. Although it is still controversial whether the change of the earth's orbit directly affects the retreating glaciers and is directly proportional to the amount of solar radiation reaching the ground, the reflection of sunlight from the ice sheet back into space may actually lead to cooling effect and more ice, which is called albedo feedback effect. Similarly, sea level decline and iceberg expansion may reduce plant growth, and indirectly lead to the reduction of carbon dioxide and methane, making the climate cool. On the contrary, higher temperature and greenhouse gas emissions will lead to less snowfall, and more sunlight will be absorbed by the dark ground, leading to further retreat of glaciers. No matter what happens, it's worrying enough. These changes may overload and collapse the earth's climate stability system, thus leading to sudden catastrophic climate change.

El Ni?o phenomenon

El Nino phenomenon refers to the persistent abnormal high temperature in the eastern and central Pacific Ocean, which leads to frequent occurrence of extreme weather. The word "El Nino" comes from the seasonal rise of seawater temperature in Peru and Ecuador around Christmas. After March, the warm current disappeared and the water temperature gradually decreased. Locals call this phenomenon "El Nino", which means "El Nino" in Spanish (a boy born at Christmas). This phenomenon has a history of thousands of years.

El Nino phenomenon refers to the abnormal atmospheric circulation caused by the rise of seawater temperature every few years, which seriously affects the global climate anomaly. Usually, the warm water in the western Pacific flows from east to west, while the cold water in the deep sea drifts along the coast of South America. Every few years, the trade winds will change direction, and so will the warm sea water.

The change from west to east hindered the rise of cold deep sea water and triggered global climate change related to El Ni? o phenomenon. Whenever El Ni? o occurs, extreme weather events such as hurricanes, tornadoes, snowstorms, heavy rains and floods will increase in many parts of the world, such as the increase in rainfall in the southern United States and Peru, devastating floods and droughts in the western Pacific and forest fires in Australia. With global warming, El Nino phenomenon becomes more frequent and lasts longer. Scientists generally believe that the occurrence of El Nino phenomenon is closely related to the deterioration of the natural environment caused by human activities, which directly leads to the intensification of global greenhouse effect, excessive demand for nature, and human beings do not pay attention to protecting the environment.

volcanic activity

Volcanic activity is the activity of transferring materials from the depths of the earth to the surface of the earth. This is the process of releasing excess heat and pressure from the interior of the earth. The influence of volcanic activity on the earth's climate cannot be underestimated. Volcanic activity erupts every few centuries, causing the earth's temperature to drop for several years or even longer. The eruption of Mount Pinatubo in 199 1 was the second largest land volcanic eruption in the middle of 20th century, second only to the eruption of Novarupta in 19 12. It has a great impact on the earth's climate, and the global temperature has dropped by about 0.5 degrees Celsius. Larger volcanic eruptions occur only a few times every 6,543.8 billion years, but they can change the climate of the earth for millions of years and lead to mass extinction. Volcanic activity releases carbon dioxide from the earth's interior for a long geological period, which offsets the role of sedimentary rocks and other geological carbon dioxide absorbers. But scientists estimate that the carbon dioxide produced by human activities is 130 times that of volcanic activities.

Human activities

Human activities have an impact on the earth's climate. The greenhouse effect caused by human burning fossil fuels and deforestation, the "umbrella effect" caused by the change of atmospheric aerosol concentration, and the change of surface albedo caused by the change of land use and land cover will all affect the climate of the earth.

In all human activities-transportation, industrial production, heating, refrigeration, power generation, etc. Fossil fuel combustion contributes the most to carbon dioxide emissions, accounting for 70-90% of the total emissions from human activities. The remaining carbon dioxide emissions come from land use activities, such as animal husbandry, agriculture, open land and forest degradation.

Before the widespread use of fossil fuels, the greatest influence of human beings on the earth's climate was the use of land. Agricultural planting and irrigation, deforestation, river diversion or destruction of animal habitats will fundamentally change the environment. There is evidence that between 700 BC and 700 AD, Greece and other Mediterranean countries cut down a lot of wood used for shipbuilding, construction and fuel, which permanently changed the local forest cover pattern and made the modern climate in this area hot and dry. Similarly, shortly after humans arrived in Australia 40,000 years ago, they permanently changed the landscape of a large area of land, where a large area of temperate rain forest was burned down and turned into a pasture for grazing livestock that new immigrants liked.

A controversial hypothesis holds that the rise of agriculture and the subsequent deforestation and agricultural activities may be the reason for the large increase of carbon dioxide and methane in the earth's atmosphere from 5000 to 8000 years ago.

The hypothesis that human beings cause climate change has been debated for many years, but scientists have gradually reached the understanding that the rapid change of the earth's climate in the past few decades has a lot to do with human activities. The focus of debate among scientists has largely shifted to how to reduce the impact of human beings on the future climate.