At present, any nuclear weapon will have nuclear radiation after explosion, which will produce pollution. In other words, without nuclear radiation and pollution, there would be no nuclear weapons.
Nuclear weapon refers to a weapon that uses the huge energy released instantly by self-sustaining nuclear fission or fusion reaction to produce explosive effect and has large-scale damage effect. It mainly includes fission weapons (first generation nuclear weapons, usually called atomic bombs) and fusion weapons (also called hydrogen bombs, which are divided into two levels and three levels). Nuclear weapons are also called nuclear weapons or atomic weapons. In a broad sense, nuclear weapons refer to nuclear weapon systems with operational capabilities, including throwing or launching systems. Nuclear weapons usually refer to nuclear weapons in a narrow sense, that is, nuclear bombs composed of nuclear warheads, guidance, penetration and other devices installed in the shell of warheads. The main body of a nuclear warhead is a nuclear explosive device. The nuclear device and the explosion control system together constitute a nuclear warhead. The nuclear warhead, guidance, penetration and other devices are put into the warhead shell to form the nuclear warhead of ballistic missile. In a broad sense, nuclear weapons usually refer to nuclear weapons systems with operational capabilities, which are composed of nuclear bombs, throwing/launching systems and command and control, communication and operational support systems.
What is radiation?
The harm of computer radiation
The radiation waves emitted by computers are often ignored. According to the international MPR radiation safety regulations, the radiation exposure within 50cm distance must be less than or equal to 25 V/m..
But do you know how much radiation the computer has? Computer radiation: 1, keyboard 1000V/m2, mouse 450V/m3, screen 2 18V/m4, host 170V/m5, notebook 2500 v/m.
In addition, radiated electromagnetic waves have eight hazards to human body:
1, promoting cell canceration.
2. Hormones are abnormal
3. Severe loss of calcium ions.
4. The onset of dementia
5. Abnormal pregnancy and abnormal delivery
6. Hypertension and heart disease
7, electromagnetic wave allergy
8. The increase in the number of suicides
When using a computer, you should pay attention to the four hazards of computer radiation as follows:)
1, computer radiation pollution will affect the circulatory system, immunity, reproduction and metabolic functions of human body, seriously induce cancer and accelerate the proliferation of cancer cells in human body. `
2. The reproductive system is mainly affected by the decline of male quality, spontaneous abortion of pregnant women and fetal malformation. 2.}N
3. The cardiovascular system affecting people is characterized by palpitation, insomnia, menstrual disorder, bradycardia, decreased cardiac blood volume, irregular sinus heart rate, leukopenia and decreased immune function of some women. 5S
4. It has a bad influence on people's visual system. Because eyes belong to the sensitive organs of human body to electromagnetic radiation, excessive electromagnetic radiation pollution will also affect the visual system. Mainly manifested as decreased vision, causing cataracts and so on. Zc=
The results of the latest national supervision and spot check on the quality of computer products announced by the General Administration of Quality Supervision, Inspection and Quarantine yesterday show that the electromagnetic radiation in computers can not be ignored.
The General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) randomly selected computer products from Beijing, Shanghai, Tianjin, Chongqing, Zhejiang, Hubei and other four provinces and cities, and the sampling pass rate was 72%. It is understood that the results of this spot check show that the computing speed, multimedia functions and software and hardware support of computer products in the domestic market have been greatly improved, but the product quality level of some enterprises is not stable enough. In this spot check, the computer products of Stone, Hewlett-Packard, Muze and other well-known enterprises were also identified as unqualified products.
It is understood that the main quality problems found in this national supervision and spot check of computer product quality are that the radiation disturbance and conduction disturbance indexes in electromagnetic compatibility exceed the standard. Radiation disturbance is a kind of electromagnetic interference emitted into space when the computer is working, which will affect the normal work of other electrical appliances, especially high-sensitivity electrical appliances. Conducted interference will affect the normal work of other electrical appliances in the same power grid, such as motherboard, graphics card, switching power supply, display, keyboard, mouse and so on. , constitute the whole system. If the choice is not good, it will cause too much radiation interference. During the spot check, it was found that some enterprises didn't understand the standards enough, and they didn't strictly control the procurement and assembly quality of production line parts, and lacked the necessary testing means, which led to unqualified products.
The seven companies, trademarks and models of microcomputer radiation disturbance found in this spot check are:
Beijing Stone Computer Technology Co., Ltd., Stone, shocked JS100; ;
Chongqing Xinbo Information Technology Development Co., Ltd., Xinbo, Free Village11kloc-0/;
Nanning Shengli Technology Co., Ltd., Victory, Leap Ⅰ;
Shanghai Taibo Computer Technology Co., Ltd., Taibo, BT-SMC-I 3298;
Wuhan Juxing Computer Co., Ltd., Shennaotong, JXSD530L;;
Beijing Heyuan Muze Technology Development Co., Ltd., Muze, E Fashion 510d; ;
Shanghai Hewlett-Packard Co., Ltd., Hewlett-Packard, P728 1—L2325.
Uncover the X-files of computer radiation
As the saying goes, there is no shortage of gold. As a modern high-tech product and electrical equipment, computer brings more convenience, efficiency and joy to people's lives, but there are also some unfavorable factors that are harmful to human health.
Judging from the types of radiation, the hidden dangers of computers to human health mainly include electromagnetic radiation (various electromagnetic rays, electromagnetic waves, etc.). ), sound (noise), light (ultraviolet, infrared radiation and visible light, etc. ) and other radiation "pollution".
From the perspective of radiation sources, it includes CRT display radiation sources, chassis radiation sources and peripheral equipment radiation sources such as speakers, printers and photocopiers. Among them, the imaging principle of CRT (cathode ray tube) display determines it ... & gt
Are only radiation left after proton and antiproton annihilation?
Mass is converted into photon energy by mass-energy equation, which is the corresponding wavelength of light.
The following is the answer on Baidu Encyclopedia ~ ~
Dirac, a British physicist, combined quantum mechanics with relativistic mechanics, which is necessary for high-speed motion, and produced the concept of antimatter. 1932, American physicist Anderson discovered positrons in cosmic rays, thus confirming Dirac's theory.
Today's particle physics tells us that any particle has antiparticles that will be annihilated with it. When a pair of positive and negative particles meet, they disappear at the same time and are transformed into other particles. This phenomenon is called annihilation. Positrons have the same mass as electrons, and the electric quantity is equal to that of electrons but the sign is opposite, that is, they are positively charged. When an electron meets a positron, it will be annihilated and converted into a pair of photons, a pair of positive and negative electrons, usually called a positive and negative electron pair (electron pair). When photons with energy exceeding 1.02MeV pass through the lead plate, positive and negative electron pairs will be generated. Whether in theory or in experimental findings, we have confirmed the existence of antimatter and the fact that positive and negative matter can be annihilated into photons or other particles when they meet, and we clearly know that light can become matter and matter can change through light. Light becomes matter, matter becomes light! So, what is the constant basic substance in the process of mutual transformation between light and matter? Do light and ordinary matter particles consist of the same basic matter, and if so, what is it? Isn't it the smallest quantum of light?
References:
Baidu baike
If people enter a black hole, they will annihilate into radiation and fly into space. The only relationship between these energy particles and your body is the conservation of mass. You think dying in a black hole is right?
The whole existence will disappear ... I don't think so. It's not so beautiful to be broken down.
What does C language mean? I also want to expand my knowledge in this field.
Is "exclusive" a new word? It's similar to being tied up, but it becomes mutually exclusive.
There is a lot of knowledge about C. I don't know which one you want. Here are a few aspects:
First, C language proper nouns
Pi: the character of oneself C.
Skin Table: A list of roles is provided when you join a group. You can choose a role for cos.
Wear a condom: When you play, use brackets to enclose any behavior except language, which generally includes actions and psychology-for example, (put your hand gently on your chest and bend slightly) loyalty to my emperor.
Skin collapse: behavior that is inconsistent with your skin-for example, your C word is cold, but there are soft, lovely and coquettish elements in your language.
Su Bainiang: Mary Su, Xiao Bai, Niang, C circle international three bans.
International three bans: usually Su Bainiang, but it depends on the requirements of the group. Some also refer to soybean ban (that is, QQ expression), facial expression ban, and exposure ban.
Up: assessment terms, where u means failed and p means passed.
Arc: Go offline or leave temporarily.
Ontology/Subcutaneous: Real People in Reality
Next door: another group. Generally speaking, it refers to group C of other languages.
Front desk, main group: the most important group in a group series, usually with the largest number of people. Usually, the main purpose is to play games and chat, and only those who are approved can join.
Theater: generally speaking, it refers to a one-man show or interaction in which one or more people continuously enter the theater.
Second, the C relationship list
Twins: fertilized eggs divide and form. Generally speaking, the two have similar neurological characteristics and susceptibility to H drama. 2. Gemini: It seems to be just an innocent constellation noun mixed in, and the truth remains to be seen ... 3.* * * Health: I would like to flirt in heaven, but I would like to bite two hairs on the ground. I won't hang up as long as you are alive. 4.*** Storage: It can't react with each other in most conical bottles, and the high-temperature and high-pressure catalyst needs to be tested. 5. Homosoma: the initial product of personality split. 6. Same fate: When fate is hard to break, it will definitely drag the other side into the water. 7. Fate: scum of anti-materialism, don't find good children. 8. Old enemy: The lanterns are hung high, and it is too late for gays. 9. Mirror image: This is a fucked-up assessment mode for the assessment team. 10. reflection: the existence of the world must be reversed in order to put the goods right? What's the use of coming? 1 1. Master: Some strange ways to play. 12. Pet: If you feel unsafe, put the rabbit on your head! 13.CP:CP's love is suitable for everyone. 14. Baby: This word is used too much and belongs to the Greek tragedy complex. 15. Lover: a euphemism for * * * 16. Lover: This is the husband or wife in the 1960s. Out of date, dear. 17. Exclusive: Looking at you, Marisol won't throw up on the toilet. 18. Uniqueness: the existence that you Marisol didn't realize. 19. Angel: refers to the kind of person who works hard to get good cards. 20. Demons: It is said that Bichi 2 1 of all demons in the land of annihilation. Brother: protect you with neuropathy at the critical moment. 22. Brother: Forced to wear women's clothes to play all kinds of plays. 23. Sister: Bury your chest to heal, remember your heartbeat, and Acheng must die. 24. Sister: Squeeze the juice without your mouth. 25. gay friends: You know. 26. Partner: Commit a crime together or stop committing a crime, and nothing happens. 27. Male God: Tunnels are difficult to do, just like a bag of coffee beans when you don't have a bean grinder. 28. Goddess: Kneeling in front of her all day, thinking about various ways of playing. 29. Master: Flirting leaves all kinds of teasing and vows not to give up until you break the gas field. 30. Apprentice: Take it out to line the gas field and eat it by yourself behind closed doors. Synonym: What the fuck is this? 32. Antonym: What the fuck is this? 33. Boss: There are 2.58 million people in front, and then tie them to the table. 34. Male body: products irradiated by unknown hormones. 35. Female body: Same as above, went to Thailand. 36. Bad friends: 300 boys in your school. Comrades: Let's go! I'll take a break. 38. Alliance: Meng Tong. 39. The same hobby: holding the same reading in the toilet cubicle and making the same abnormal laughter. 40.*** Handsome: This is a world where no one praises others for their handsomeness ... 4 1.* * * Crazy: * * The same convulsion. 42. Best friend: lover not full, but friendship is not enough to explain your abnormal thoughts about him. 43. Domestication and pollution of young teeth. 44. Heart: It seems to be an organ that can't be inserted. 45. Son: Committed to playing the Oedipus complex. 46. Daughter: Dedicated to playing Electra Cong. 47. Shadow: This is necessary for the morning slapping game. 48.*** Stupid: Promote each other, learn from each other and make progress together. 49. Brothers and sisters: symbols of successful people = * * clothes and too many cooks 50. Cronies: different ... >>
How to dominate in the true soul?
The balance of the characters' abilities of Zhenshi Soul is relatively good, but they are not complementary. I just feel that Wang Hu is not very strong. Maybe this is a defect.
What should we pay attention to when we go to college?
Don't sleep late