G asked in Science & MathematicsPhysics · 1 decade ago

what time did the clock invented?

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  • 1 decade ago
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    Nothing, time was always there, a clock just measures time. however my clock invented..BEERTHIRTY.........

  • Anonymous
    1 decade ago

    All clocks keep track of universal time (same time throughout the universe) in some manner. Whether a candle, water clock, windup, or the most complex atomic one, they all keep track of universal time. Some in clumps, some in high frequency vibrations - they all relate in physical time.

    Physical time, itself, is a particular speed. In the physics trilogy we find E = mc2, m = E/c2, and c2 = E/m; with the only non-changeable factor being that of "c2". This is the basis of the first two. It represents the speed of time and is the basis and foundation of our existence. It is for this reason that all forms of energy and mass move from the present to the past at the same speed. The thought "c2 = E/m" shows this to be a particular from of energy, likely c = h.

    http://timebones.blogspot.com and

    http://360.yahoo.com/noddarc may be of interest.

  • The clock did not invent time. It measures it. Since the 14th century, clocks have measured time, labeled and described it. To physicists, time is defined by quantum mechanics. A photon with energy h (Planck's constant) behaves as though it were oscillating once per second. Modern atomic clocks are based on this.

    Time direction is something else. It is based on information, which sits uneasily in the world of physics. But, any quantum system must have an arrow of time.

    Without quantization, this is the way the universe would look. You would be able to put it into, or back into, any state you wished, any 'time' you wished. Time would not have a direction to it.

    The essence of quantization is that information is limited - many 'different' particles are indistinguishable. We can not distinguish one electron from another, we can only observe the recent history of each one as reflected in its few quantum numbers

    The commonest view of scientists is that the universe, and hence time, came into existence with a 'big bang' about 16 billion (16x109) years ago. This theory is based primarily on observations of colour patterns of stars, of the background radiation between stars, and of the distribution of elements in the universe. It is possible, however, that the colour patterns are partly, or entirely, due to a loss of energy of light with time, not solely to physical movement. It is even possible that the universe will prove to have indistinguishable 'big bang', 'tired light' and 'dissipative' models, just as it has several indistinguishable models of quantum mechanics, and that time thus has no true beginning. It's best to keep an open mind on this subject for some time to come.

    Our biological time began about 4 billion years ago, with the appearance of permanent liquid water on earth.

    The earliest human calendars (one is dated to 30,000 B.C.) kept track of the days in the moon cycle. Later ones counted moons or years from the accession to power of the head of a cultural group.

    The early Egyptian year began with the first visible rising of Sirius above the horizon. It was probably in use by 4200 B.C..

    The Mayan calendar of Central America began 12 August 3113 B.C. Gregorian, possibly the religious date of foundation of the first Egyptian dynasty. It was brought to the Olmec of the Gulf of Mexico by a fleet of Egyptian-derived reed boats headed by a senior religious person, the 'Plumed Serpent', about 2200 years ago. It is no longer in use, but is truly carved in stone.

    One Bishop Ussher considered that, according to the Bible, God created the world on 23 October 4004 B.C. We have just entered his 7th millennium. (A hundred years ago, 23 October 1997 would have been considered by many to be a more important date than 1 January 2000.)

    A short-lived French revolutionary calendar, with 10 day weeks, began 22 September 1792. (Napoleon canned it.)

    For details of the main calendars in current use see the Explanatory Supplement to the Astronomical Almanac.

    Possibly the most recent calendar, containing only computer ticks, was created by Microsoft to begin 01-01-1980.

    Atomic clocks were made when you put a nitrogen atom with an ammonia molecule. They then measured the ocillation per second. This is now our most accurate clock. In the next few years, we will have an even more advnaced and acuurate clock \. Believe me, I'm 13.

    Sean

  • 1 decade ago

    The first clocks were sundials used by all advanced ancient societies. Sundials could be a simple 'needle' fixed in the ground or a rock to more complex ones where the seasons, winter and summer solstice could be read and in case of the Egyptians and advanced Latin American civilizations, also the tract of the Moon.

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  • 1 decade ago

    Clocks have been in use since at least the 14th Century

  • Anonymous
    1 decade ago

    I'm sure some caveman said, "I'll meet you here when the sun is over there."

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