1. Measurement to describe the incident process 2. BiBi Zhou's 29 music album Time, BiBi Zhou's 29 music album Time 3. Jin Jide's 26 film Time directed by Jin Jide in 26 4. Angela Weinhold's book Time. Producer, producer of the column "Moral Observation" by the media person 6. Direction of Time 7. Luo Niansheng creates new poems and Luo Niansheng creates new poems 1. Metrological editing of the original meaning of describing the event process Time helps to edit the encyclopedia business card
Time is a parameter used by human beings to describe the process of material movement or event occurrence, and it is determined by the law of material cycle change that is not affected by the outside world. For example, the cycle of the moon around the earth, the cycle of the earth around the sun, the cycle of the earth's rotation, and the cycle of atomic oscillation. Einstein said that time and space are an illusion of people's cognition. The Big Bang theory holds that the universe starts from a starting point, which is also the starting point of time.
Chinese name: time
English name: time
Definition: time is the time interval from the occurrence to the end of an event
Applied discipline: physics (first-class discipline)
Catalogue
How time means time exists
Concept
Relationship between cognition and human lead (age)
How to increase yourself.
the abstract concept of "time" in physics
the theory of analyzing time
the establishment of analyzing time in the first section
the basic properties of time and space in the second section
the philosophical concept
the unit
is
engraved
more
points
famous sayings and epigrams that cherish time
. Increase your own lead (time)
How to save time
How to manage time
Mathematical logic
The abstract concept of "time" in physics
Analyzing the theory of time Section I Analyzing the establishment of time Section II Analyzing the basic nature of time and space Philosophical concept unit cherishes time more at all times famous sayings and epigrams
Understanding the origin of time through the origin of time concept. Since the birth of mankind, people have felt the phenomenon of day-and-night cycle, and defined a day-and-night cycle as a time, and gradually realized that this is the performance of the earth's rotation (a kind of thing). Furthermore, people understand that the earth is revolving around the sun from behind the phenomena of spring, summer, autumn and winter, and the cycle of the sun, moon and stars, and define the process of the earth's revolution as one year. Not only that, people also divide a day into 24 hours or 12 hours, and divide a year into 4 seasons, 12 months and so on. People also compare the length of a year with that of a day, and one year (the process of the earth's revolution once) corresponds to about 365 days. Through the analysis of time units "day" and "year", we can see that people's understanding of time is actually carried out around the existence process of various things. The concept of time is gradually formed and perfected by defining, dividing and comparing the existing process of things on the basis of people's understanding of things. The existing process and state of things are nothing more than movement, change or stillness. Things that change in motion can have both spatial displacement and character change. Some things show periodic movement or change, while others are not obvious or not. The existence process or stage of things with obvious periodic changes is often used as the basis for measuring the length of time. For example, the earth's rotation and period of revolution, the movement period of a simple pendulum, the oscillation period of atoms and so on. Although people have established the concept of time by observing the movement and change of things, it does not mean that there is no time without movement and change or that stillness is meaningless to time. Static state is also a form of things, such as the molecular structure of diamonds, which is generally stable under normal circumstances, otherwise people will not say that "diamonds will last forever." Therefore, no matter whether things are moving or static, as long as things exist, they can be described by time, that is, the concept of time should also reflect the static state of things. It is preliminary and one-sided to base the concept of time only on the movement and change of things. If we can further realize that stillness is also a state in the process of things' existence, it will be a progress in the concept of time. One of the basic purposes of establishing the concept of time is to compare time, that is, to compare the sequence of things or whether they are at the same time. In order to facilitate mutual communication and activities, people usually take the beginning and end of some landmark things as a sign of timing. For example, the year of Jesus' birth is the beginning of the year, the year when Sun Yat-sen proclaimed the founding of the Republic of China is the beginning of the year of the Republic of China, and the sound and smoke of starting guns on the sports ground are the beginning of a certain competition. Another basic purpose of establishing the concept of time is to measure and compare the length of the existence process of various things. People generally don't take the existence process of static things as the basis for keeping time, which may be a factor that people regard time as "the existence form of motion" for a long time. People usually choose something with stable periodic movement and take its movement period as the timing basis. For example, the moon phase, standard watch, sundial, mechanical clocks, quartz clocks, atomic clocks, etc., these things have become people's natural or artificial timers. Timer is a device that people measure the length of the existence process of other things through the existence process (especially periodicity) of one (kind) changing thing under certain conditions. It should be noted that the time measured by any timer is a process of presenting itself, and does not necessarily represent the process of other things. Even so, people can still describe the length or stage of the existence process of other things by the running state of a timer under certain conditions or through certain transformation. For example, about 365 earth rotation periods (days) correspond to one earth period of revolution (year), about 29.5 days correspond to a new moon, and stopwatches are used to measure athletes' achievements. It can be seen from the above description that the concept of time should not be a consciousness invented by people out of thin air, but comes from people's understanding of the existing process of various things and is produced through induction and summary. Therefore, the concept of time corresponds to the objective reality-the existence process of things. In addition to understanding "things"-objective things in physical form, such as stars, planets, molecules, atoms and cells, people can produce corresponding concepts, and they can also produce corresponding concepts after understanding objective facts that are not "things". For example, the physical quantities corresponding to the seven basic units in the international system of units: time, length, mass, current intensity, temperature, luminous intensity, quantity of matter, and people's concepts of space, information and consciousness also reflect the objective facts of non-physical forms. Therefore, it is obviously absurd to deny the objectivity of the concept of time on the grounds that time is not a "thing". People not only use time to describe the existence process of material things, but also the existence process of other immaterial things. For example, in terms of consciousness, when did Marxism come into being and how long did it last? If people realize that the existence process of things is the origin of time, it is not difficult to define time again. Time is the existence process of things and the natural attribute of all things. As one of the seven basic dimensions in the international system of units, people use time to measure the length and order of the existence process of various things, including the speed of movement and change.
Edit the time meaning of this paragraph
Meaning-(defined by physics) Time is the time interval from the occurrence to the end of an event. (The "moment" mentioned here is usually called "time", so it is inappropriate to say "time" by definition, but it should be called "time") What is time? The essence of time: time is a measure of the sequence or persistence of events. T = t (u, s, ...) u-universe; S space, XYZ, ………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… T=(S1,S2,S3,...,Sn) The above are the essence, concept and formula of time: the sequence of world events. Among them, S is the event, S1,S2,S3,...,Sn is the sequence in which the event time model
1, 2, 3, ..., n occurs, and time is the ordering of the sequence in which these events occur, and the measurement of signs. The basic concept of time: time is a process of material change. If matter does not change, time does not exist. Even if it exists, it doesn't mean anything. And the measure of this continuous material change is called time. Others think that time is a concept that exists in people's minds. Some people think more, then their time will slow down; Some people act more, and their time will be faster. Speaking of which, some people may say that we live on the same earth, so time is not equal? Wrong. Time is equal, but the order is different. This is also the reason why some places develop rapidly and some places develop slowly. The value of time: time is the biggest cost of people, and it is also everyone's capital and wealth. Time is fair to everyone. A day for everyone is 24 hours and 1,44 minutes. From the day you came to this world, it has been with you every day, no matter whether you are poor, rich, expensive or cheap, time has never left you. Time is limited, and it is also infinite. It is limited that there are only 365 days a year, 24 hours a day, but it goes by in cycles. Life is only a few decades in a hurry until the day of old age. < P > BIGBANG is the beginning of time (5 pieces), and time is still the same. Every minute is walking like infinity, but it gives each of us a limited life. The famous writer Lu Xun once said: Time is the material of life, and wasting other people's time is tantamount to killing people for money. Therefore, we must be serious in everything we do, and don't waste our time, let alone other people's time. The origin of time: the origin of time is the existing process of things. Time is a natural attribute of all things. Time is a representation of existence, a record of process, and a parameter for people to describe the existence process and its fragments. The existing state of things is nothing more than static and moving changes, and the moving changes of things not only have their spatial displacement, but also have their character changes. Time is the key to judge whether general things are in a static stage or a moving stage. Everything has a beginning and an end. But there is at least one thing except absolute space. The existence process of absolute space-absolute time has no beginning and no end. And the existence process of other things can correspond to a certain part of absolute time. Of course, the time of other things can also correspond to each other under certain conditions. [1]
How does time exist
Time has its origin, just as the universe also has its origin. The generation of the universe is accompanied by the generation of time. There is no time around an absolutely stationary object, but there is time around a moving object. The earth in which we live is moving, and it will rotate, so there is time on the earth. If there is no rotation, then it will also have time, because it is also in revolution. If there is no revolution, there is time on the earth. The solar system is moving, and the Milky Way and even the whole universe are in motion. If the whole universe is in absolute rest, then there will be no time.
Edit the concept of this paragraph
Time scale
Time service system: it is a working system for determining and broadcasting accurate time. Every hour, the radio that is listening to the radio will broadcast the sound of "beep, beep ..............................." ..................................................................................................................... Where did the correct time come from in the radio station? It is controlled by the precise clock of the Observatory. So how does the Observatory know these precise times? As we know, the earth rotates evenly once a day, so the stars in the sky rise and set once a day. If the earth is regarded as a big clock, the stars in the sky are just like the numbers on the clock face indicating the hours. The position of the stars has been well determined by astronomers, which means that the number of hours on this natural clock face is very accurate. Astronomers' telescopes are like hands on a clock face. On the clock we use every day, the hands turn and the clock face does not move. Here, it seems that the hands are "motionless" and the clock face is turning. When the stars are aimed at the telescope, astronomers will know the correct time and use this time to correct the clock of the observatory. In this way, astronomers can always know the correct time from the clock face of the observatory. Then broadcast it on the radio at a certain time every day, for example, at the hour, so that we can go to school for our own clocks or for other work needs. Astronomical time measurement relies on the earth's rotation, and the inhomogeneity of the earth's rotation makes the time (universal time) accuracy obtained by astronomical methods only reach 1-9, which cannot meet the needs of social and economic aspects in the middle of the twentieth century. A more accurate and stable time standard came into being, which is the "atomic clock". At present, all countries in the world use atomic clocks to generate and maintain standard time, which is the "time reference". Then, time signals are delivered to users through various means and media, including short wave, long wave, telephone network, Internet and satellite. This whole process is called "timing system". Time zone: 24 regions dividing the earth's surface by longitude. When we see the sun rise in Shanghai, people living in Singapore will not see the sun rise for another half an hour. Residents in London, England, are still asleep, and it will take another 8 hours to see the sun. People in all parts of the world, if they use their own local time in their lives and work, will bring a lot of inconvenience and difficulties to daily life and transportation. In order to take care of the convenience of use in various regions and make it easy for people in other places to take their local conversion of time to other places. The relevant international conference decided to divide the earth's surface into regions from east to west along the meridian, and stipulated that the time difference between adjacent regions was one hour. People at the eastern end and the western end of the same area see the sun rise for no more than one hour. When people cross an area, they set their clocks by one hour (minus one hour to the west and plus one hour to the east), and add or subtract several hours when crossing several areas. This is very convenient to use. Today, the world is divided into 24 time zones. Because in practice, one country or one province often spans two or more time zones at the same time, in order to take care of administrative convenience, one country or one province is often grouped together. Therefore, the time zone is not strictly divided by the north-south straight line, but by nature.