What is the first result on Gravity Probe B?

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  • #1
cosmopot
16
0
What is the first result on Gravity Probe B? Please tell me.
 
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  • #2
There are anomalies to be corrected, so that for now the data doesn't have the expected resolution, esp. for the Lense-Thirring measurement. The final results are expected in december. Geodetic effect is anyway confirmed up to 1% for now.
 
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  • #3
This morning's news release from Stanford: http://einstein.stanford.edu/content/press_releases/SU/pr-aps-041807.pdf" .
 
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Related to What is the first result on Gravity Probe B?

1. What is Gravity Probe B?

Gravity Probe B (GP-B) is a satellite-based physics experiment launched by NASA in 2004 to test Einstein's theory of general relativity.

2. What was the purpose of Gravity Probe B?

The main objective of Gravity Probe B was to measure two key predictions of general relativity: the geodetic effect and frame-dragging.

3. How did Gravity Probe B measure these effects?

GP-B used four ultra-precise gyroscopes to measure the tiny changes in the spin axis of the Earth caused by the geodetic effect and frame-dragging.

4. What were the results of Gravity Probe B?

After 16 months of data collection, GP-B confirmed both the geodetic effect and frame-dragging with an accuracy of 1%. This supported Einstein's theory of general relativity with unprecedented precision.

5. What impact did Gravity Probe B have on the field of physics?

The results of GP-B have greatly advanced our understanding of gravity and provided further evidence for the validity of Einstein's theory of general relativity. It has also paved the way for future experiments and research in this field.

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