Minggu, 08 Mei 2011

NASA Prove Einstein Theory of Relativity





VIVAnews - gauge the gravity of the United States space agency, NASA, successfully proving that sparked two key assumptions in the theory of relativity, Albert Einstein. This theory proposed by Einstein 52 years ago.
The mission of The Gravity Probe-B (GP-B) was launched in 2004 to study the two Einstein assumptions. First, the geodetic effect, or the curvature of space and time around gravity. Second, assumptions regarding the frame-dragging, which explains the number of space-time structure of the twisted due to the rotation of a mass.
"Imagine the earth as if immersed in things like honey," said Francis Everitt, Stanford University researcher who is also principal investigator of the GP-B. "When the earth rotates, honey around it will form a vortex that follows (swirl), as well as space and time," said Everitt analogy.
Gravity Probe-B uses four gyroscope (orientation measure) with ultra high levels of accuracy for measuring the gravity of these two hypotheses. The tool is then confirmed both by direct gravitational effect of this tool into a star called IM Pegasi, to create a neutral precision.
If gravity had no impact on space and time, the GP-B gyroscope will be pointing in the same direction when the probe was in polar orbit around the earth. However, gyroscopes have small but measurable changes to the direction of rotation of the earth charm.
"The results of this mission will have long-term impact on the theory that physicists have," said Bill Danchi, antrofisika experts and observers at Nasa headquarters in Washington.
"Anyone who doubts the theory of Einstein's theory in terms of general relativity will try to find the exact measurement results from the GP-B has been done," said Danchi.
This result is a project conducted NASA's longest, which has been engaged in research for the relativity gyroscope since 1963.
Research and experiments conducted during these decades has pioneered technology to control the disorder that could affect the shuttle, such as aerodynamic attraction, magnetic fields, and variations in the heat. Furthermore, the mission of the star tracker and gyroscope NASA is a tool with the highest precision ever designed and manufactured.

 
• VIVAnews

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