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Saturday, January 31, 2009

E=mc² (Relativity Theory)

E = mc2 in the science of physics is a formula that is known good and important, which explains the value of equality between the energy (E) and mass (m), which is directly through the rate constant light square in the vacuum cleaner (c 2)

E=mc²

of which:

* E = energy (J)
* M = mass (kg)
* C = speed of light (m.s-1)

The c 2 value 89.88 PJ / kg = Mt 21:48 TNT per kg = 149.3 PJ / u = 931.5 MeV / u.

If the energy is in the equation above is the silent energy, the mass is also related to mass or mass invarian silent.

History and consequences

Albert Einstein down this formula is based on his researched in 1905 on the behavior of objects that move with the rate approaching the rate light. Conclusion famous ditariknya of this observation is that a mass object is actually a measure of the energy of the womb. Instead, equality is a hint that all the energy that exists in a closed system still affects the mass of the system.

According to this equation, the maximum energy that can be obtained "from an object to do is work on the mass of an object multiplied quadratic rate light.

This formula is also used to measure the amount of energy produced in nuclear reactions. Isotope mass change before and after the nuclear reaction considered. Where the amount of mass lost after the nuclear reaction (Δm) multiplied by the square speed of light, the result is the same as the energy released in nuclear reactions are.

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Friday, January 30, 2009

Who Is ALBERT EINSTEIN ??

Albert Einstein (14 March 1879-18 April 1955) was a theoretical physics scientists are seen as knowledgeable scientists in the 20th century. He explained the theory relativitas and also contribute to the development of quantum mechanics, statistical mechanics, and cosmology. He was awarded the Nobel Prize in Physics in 1921 for the explanation about the effect fotoelektrik and "pengabdiannya for theoretical Physics."

After the general theory formulated relativitas, Einstein became famous throughout the world, the achievement that is not normal for a scientist. In the parents, he was popular beyond all fame scientists in history, and in popular culture, said Einstein considered the same as the intellect or even genius. Face is one of the most famous in the world.
Albert Einstein, Figure This Century (Person of the Century)

In 1999, Einstein called the "Figure This Century" by Time magazine. He also made popular the name "Einstein" is used widely in advertising and other merchandise, and finally, "Albert Einstein" are registered as trademarks.

To appreciate Einstein, in a unit chemicalphoto named Einstein, a chemical element named einsteinium, and a named asteroid 2001 Einstein.

Einstein formula is the most famous (see E = mc ²)





The youth and university

Einstein was born in Ulm in Württemberg, Germany, about 100 km east of Stuttgart. Hermann Einstein called his father, a merchant feather bed, which then undergo chemicalelectric work, and called his mother, Pauline.

At the age of five years, his father showed pocket compass, and Einstein realized that something in the room "empty" this act of the needle in the compass, then he describes this experience as one of the most current move in his life. Although he created a model and mechanical equipment as hobby, he is seen as a slow student, possibly caused by dyslexia, shy nature, or because the structure of the rare and unusual in otaknya.

Einstein began to study mathematics at the age of twelve years. There is gossip that he failed in mathematics in the education levels, but this is not true; replacement create confusion in the assessment the following year. Two uncle's to help develop a sense of the intellectual world in the late childhood and early adolescence by providing suggestions and books about science and mathematics.

At 1898, Einstein meet and fall in love to Mileva Marić, a Serbian friend who is a class (also friend Nikola Tesla). In the year 1900, he was awarded a degree to teach by Eidgenössische Technische Hochschule and accepted as a Swiss citizen negar in 1901. During this time Einstein discussed about science to close friends, including Mileva. He and Mileva had a daughter named Lieserl, born in January 1902 year. Lieserl Einstein, at the time, is not considered legal because her parents did not marry.
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