Summer time in 2020: July 22nd 16: 36: 44.
Gregorian calendar time: Wednesday, July 22nd, 2020 16:36:44.
Lunar date: Wednesday, June 2, 2020
Start time: Wednesday, July 22nd, 2020 16:36:44.
Deadline: Friday, August 7, 2020 at 09:06.
Summer date algorithm
Formula for calculating extreme heat: [Y*D+C]-L
Interpretation of the formula: Y= two digits after the number of years, D=0.2422, L= leap year, 2 1 century C=22.83, and 20th century =23.65.
For example, the date of the great summer heat in 2088 = [88× 0.2422+22.83]-[88/4] = 44-22 = 22, and the great summer heat on July 22.
What does the heat mean? Explain briefly.
"Summer heat" means heat, and great summer heat, as its name implies, is very hot.
Summer, the twelfth of the 24 solar terms, is also the hottest solar term in a year. Its climatic characteristics are: "Dou refers to C as a great summer heat, and the weather in Sri Lanka is stronger than a small summer heat, so it is called a great summer heat." Midsummer is the hottest time of the year. High temperature weather of 40 degrees Celsius often occurs in many areas of our country. Summer is the fastest growing period of warm crops and the season with the most thunderstorms. There is a proverb that says, "Without a drop of lightning in the east, you can't walk in the west", which means that if there is lightning in the east in summer afternoon, it won't rain here. If lightning is in the west, it will come soon, and it is too late to escape. At the same time, meteorological disasters such as drought, flood and wind disaster are also the most frequent in many areas.
The ancient summer heat in China is divided into three periods: "Rotten grass is firefly; Second, wait for the soil to moisten and cool off the heat; It will be fine when it rains. " There are more than 2000 species of fireflies in the world, which are divided into aquatic and terrestrial species. Terrestrial fireflies lay eggs on hay, and when it is hot, fireflies ovulate, so the ancients thought fireflies were made of rotten grass. The second weather is that the weather becomes sultry and the land is wet. The third kind of weather is frequent thunderstorm, which weakens the heat and humidity, and the weather begins to transition to beginning of autumn.
Prevention of heatstroke under high temperature in summer
Pay attention to diet and health care in summer to prevent heatstroke.
Supplementing salt and minerals: For workers exposed to the scorching sun, due to a lot of sweating, salt and minerals can be supplemented by drinking salty boiled water or sports drinks containing trace elements such as potassium and magnesium. Don't drink frozen drinks for a while to cool off, so as not to cause stomach cramps; Alcoholic drinks and high-sugar drinks will make people lose more water and should not be drunk at high temperature.
Healthy diet enhances nutrition: In summer, in order to prevent heatstroke, we should pay attention to diet, eat more light food, eat less high-oil and high-fat food, and reduce human calorie intake. A nutritious diet in summer should be high in calories, protein and vitamins A, B 1, B2 and C. You can eat more tomato soup, mung bean soup, soybean milk and sour plum soup.
Eat less high-oil and high-fat foods and try to eat lightly. Indigestible food will bring extra burden to the body. However, it should be noted that people need to consume enough calories to supplement protein, vitamins and calcium in high temperature environment. Eat more fruits and vegetables.
Get enough rest in summer to prevent heatstroke.
In summer, the days are long, the nights are short, and the temperature will be high. At this time, the physiological clock will be affected to some extent, and at this time we will feel the fatigue of the body. There will be symptoms similar to a cold and fever. At this time, the most direct and effective way to cool off the heat is to sleep. We usually sleep for 6-7 hours on a normal day, but if we sleep later, the quality of sleep will be worse at this time.
Although modern people work late, they still want to go to bed before twelve o'clock at night. In addition, you should also pay attention to the air conditioner or electric fan not to be too close to yourself, or go to bed after taking a shower without drying your hair, which is easy to catch a cold.
Pay attention to sun protection in summer to prevent heatstroke.
Remember to prepare sunscreen equipment when you go out in summer. It is best not to walk in the scorching sun from noon to afternoon, because at this time the sun is strongest and the possibility of heatstroke is the highest! If you must go out at this time, you must take good protection, such as umbrella, sun hat and sunglasses. If possible, it is best to wear sunscreen and prepare enough water and drinks.