The new “color” of her hair will help her shine brightly in the sun and match the stylish fashion of summer days. If you are not sure what hair color to choose, you can refer to the selection of Vietnamese beauties. The actress “Glutinous rice, plain rice” is inherently associated with shoulder-length black hair. Early in the summer, she changed her interface with half of her hair dyed pink. With this playful hair, Thuy Ngan wears personality costumes such as jogger pants and crop top that are extremely suitable. This year’s girl has reached the age of 30, but her appearance looks ten years younger. Not long ago, “screen pearl” Ninh Duong Lan Ngoc also showed off her super cute new hair color on her instagram story. It is easy to see that her sideburns have been lighter in tone. Light hair color also makes the actress’s face more white and fresh. It is easy to see that Lan Ngoc’s hairstyle is quite similar to that of great sister Tang Thanh Ha. The mother of two children once shocked the whole world when she was famous as the traditional woman of the family but also actively followed the “sizzling” hair color trend. Since getting married, Diep Lam Anh has moved away from entertainment activities and focused a lot on business. But not only is her dress style better, but her hair beauty is also very cool when bleaching the entire inner hairline, including the front bangs. Needless to say, the hotness of this dyed hairstyle hides this color when all are used by the marshals over 30 for the summer. If you also want to experience the feeling of being praised by many people with this haircut, please note a few things: The hair will have to go through the bleaching process “Swinging trend” on hair, you have to go through 2 processes of bleaching and dyeing. If the hair is too black, often the bleacher will have to use high aids or go through 2 bleaching times, then come to cover the color. In essence, all hair color removers remove melanin, the substance that gives hair its black color. These bleaches are all strong oxidizing agents, causing changes in the physical and mechanical properties of the hair, causing the hair to lose its shine, become brittle, and break easily. There are many types of bleach solutions or powders, each with different specific chemical properties. However, substances based on benzene or phenol often have strong activity, have the ability to bleach quickly, but are also very toxic. Hydrogen peroxide solution is less toxic because the main ingredient is only free oxygen and water, but on the contrary, the bleaching ability is poor, and the bleaching time needs to be extended. However, you should not worry too much because with this hairstyle, the bleached hair does not take up too much and does not necessarily bleach close to the hairline. Therefore, you will not have a burning scalp as rumored. Switch to shampoo and conditioner made specifically for bleached hair Surely you will not want your hair color to fade quickly after dyeing. In fact, bleached hair is very easy to fade if you wash it with a normal hair shampoo. The type of oil that hair experts recommend you use at this time is purple shampoo to reduce yellow light. It will have the effect of reducing the yellow color caused by bleaching and keeping the hair color more durable. Besides, you should not skip the step of incubating your hair with conditioner so that your hair is properly nourished. The action of this shampoo on the hair. Proper nutrition Besides the above notes, you also need to take care of your hair with nutrition. The hair will be absorbed nutrients from deep inside and will quickly be healthy, helping the hair roots to recover well, less breakage and fresher. The nutrient that cannot be ignored is vitamin C – the main factor in collagen production. This is a protein that strengthens hair to prevent hair from becoming brittle. Furthermore, vitamin C helps the body absorb iron from the diet. Low iron levels can cause anemia, which causes hair loss.

The main difference between these three types of hydrogen lies in the number of neutrons in the nucleus. Protium is the default type of hydrogen in our natural habitat, which consists of a proton and an electron, while deuterium has an extra neutron when compared to proti and tritium with two more neutrons when compared to proti. . Most of the hydrogen in nature exists in the form of proti, with a relative abundance of 99.9844%, while deuterium abundance is relatively low, at about 0.0156%. For tritium, since abundance is less than 0.001% it is usually noted as a trace amount. During the recent nuclear wastewater incident in Fukushima, Japan, tritium content was a major issue being discussed. Tritium is radioactive and undergoes beta decay with a half-life of 12.43 years. It is often thought that it was caused by the interactions of cosmic radiation and hydrogen in the atmosphere. Since the introduction of nuclear technology, humans have produced 5 times more natural tritium (about 7.3 kg in nature). Although proti (H2O), deuterium (D2O), and tritium (T2O) differ in atomic composition, the differences in their chemical properties are very small (D2O and T2O are commonly known as heavy water and super heavy water). Also because many of the three properties are similar, tritium is also one of the most difficult to separate and remove substances in nuclear wastewater. However, non-radioactive heavy water is much more interesting than super heavy water. Since the density of heavy water is 10% greater than that of water, heavy ice can sink to the bottom in the water. In 1931, the American scientist Harold Clayton Urey discovered the isotope of hydrogen, deuterium and he also received the Nobel Prize in Chemistry in 1934. In 1933, Urey’s mentor Gilbert Newton Lewis produced 0.5 ml of heavy water by electrolysis of water, with a purity of 65.7%. Harold Clayton Urey However, deuterium in natural water does not always exist in D2O form, and it is more likely to exist as HDO (half heavy water). During the production of heavy water by electrolysis, when the HDO molecules reach a certain rate, there will be an exchange of hydrogen ions between the water molecules, and the ratio of D2O also increases accordingly. . When the method of producing heavy water by electrolysis appeared, it quickly applied in practice. The year after Lewis produced high-purity heavy water, Norway built the Venmork hydroelectric plant in 1934, which uses nature’s abundant water to electrolyze water, creating hydrogen for production. Nitrate fertilizers. Norway’s Venmork hydroelectric plant. However, the manufacture of chemical fertilizers requires hydrogen from electrolytic water, and does not use the heavy water remaining in the electrolysis cell. So after a period of operation, the plant analyzed the residue of electrolysis and found that the ratio of deuterium to hydrogen (protium) was 1:48, much higher than the natural ratio 1. : 6400, though most of them exist in semi-HDO form. So the Norwegian Hydropower Company accepted the request of the person in charge of the hydrogen plant to produce heavy water from the byproducts of electrolysis. Therefore, it can be said that Norwegian Hydropower has become the earliest heavy water supplier in the scientific community. However, the story of heavy water has only just begun. In late 1938, the Germans discovered that the bombardment of a neutron on uranium could cause nuclear fission. In late 1939, the Soviet Union concluded that heavy water and graphite were the only viable regulators for uranium reactors, and each of these reactors required about 15 tons of heavy water to function. So heavy water then became a strategic substance because it can slow down the neutrons produced by chain nuclear reactions, and all nations take it seriously. From 1940 to World War II, the Norwegian heavy water plant was under Nazi control and bought nearly all of the heavy water in bulk. Allied forces crossed the mountain plateau to destroy heavy water factories under Nazi control. In short, when heavy water first appeared was associated with nuclear reactions, many people’s first impression of it was extremely dangerous, but it was not. Right after the discovery of heavy water, scientists were curious about it, so someone drank heavy water right after the discovery of deuterium. GeorgeCharles de Hevesy and Harold Clayton Urey, who discovered the deuterium, were good friends. In 1934, Hevesy asked Urey to get several liters of heavy water with low purity, only 0.6%. Hevesy then drank this heavy water to use deuterium as a marker, studied the water metabolism of the human body, and eventually concluded that the average residence time of water molecules in the muscle. human body is 13 ± 1.5 days. But if absorbing the amount of heavy water with a higher purity, it will have a significant effect on the body of animals and plants. Plants will die in high concentrations of heavy water. Animals such as mice and dogs will become infertile if D2O reaches more than 25% in the body, and fish will die rapidly in water that is more than 90% heavier. Mammals will die about a week after being given about 50% heavy water. In fact, humans and animals can hardly be exposed to such high purity heavy water, except animals raised for research purposes.