Modern Physics

2005: World Year of Physics

The World Year of Physics was celebrated in 2005. That same year was celebrated the centenary of the theories published by Albert Einstein.

Left – commemorative symbol of the World Year of Physics; on the right – the best known photo of Albert Einstein.
In 2005, the World Year of Physics was celebrated. The party was conceived by the scientific community in order to honor the 100th anniversary of the publication of the theories of the German physicist Albert Einstein.

The theories published by Einstein and celebrated in 2005 were:

• The theory of relativity
• Quantum Physics
• Theory of Brownian Motion

With his publications, Einstein revolutionized the history of Physics, because he showed that nothing was absolute, therefore, there was no absolute reference and showed that everything is relative. He proved this when he introduced us to the theory of relativity, which brought us a new conception of the mass of a body.

E = mc²

E = energy
m = mass
c = speed of light in a vacuum

Einstein showed us, from relativity, that the speed of light in a vacuum is the limiting speed for any body of real mass.

He also brought to the attention of mankind the possibility of light being formed by particles.

About the speed of light in a vacuum (c), Einstein postulated that it is the same for all observers, regardless of their motion or source.

These theories proposed by Einstein intrigue scholars, as they make it impossible to know if the simultaneity of events is real.

Coming back to the celebrations of all this, the official opening took place in Paris, France, at UNESCO World Headquarters between January 13th and 15th, 2005.

The festivities in Brazil had their official beginning at the National Symposium on Physics Teaching in Rio de Janeiro, between January 24th and 28th of the same year.

Throughout 2005, not only physicists, but the entire civilian population interested in learning and understanding a little more about Einstein’s theories, had access to lectures, fairs and various events aimed at this end

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