(redirected from Gravity Probe B)
Also found in: Encyclopedia, Wikipedia.
Category filter:
GPBGreat Britain Pound (UK)
GPBGeorgia Public Broadcasting
GPBGenomics, Proteomics and Bioinformatics (Elsevier publication)
GPBGravity Probe B (general theory of relativity)
GPBGamma Phi Beta (international sorority)
GPBGlycophorin B
GPBGuided Peneration Bomb (gaming)
GPBGross Pointe Blank (movie)
GPBGerman Proficiency Badge
GPBGrowth Playbook (General Electric)
GPBGeorgetown Program Board (Georgetown University; Washington, DC)
GPBGelatin Phosphate Buffer (immunology)
GPBGlobal Private Banking
GPBGeneralized Pseudo-Bayesian
GPBGram Positive Bacillus
GPBGreatest Possible Being
GPBGeneral Purpose Boat
GPBGlobal Pipeline Burst (SRAM)
GPBGeneralized Pauli Base
Copyright 1988-2018, All rights reserved.
References in periodicals archive ?
Twenty-one papers published online November 17 in Classical and Quantum Gravity present a full summation of results from Gravity Probe B, a satellite that in 2011 confirmed Einstein's prediction that Earth dents and whips up the spacetime around it.
"Einstein survives," chuckled Francis Everitt, Stanford University physicist and principal investigator for Gravity Probe B, one of the U.S.
Gravity Probe B (GP-B), launched in 2004, used four ultra-precise gyroscopes to measure the hypothesized geodetic effect, the warping of space and time around a gravitational body, and frame-dragging, the amount a spinning object pulls space and time with it as it rotates.
RELATIVELY MISSION COMPLETED Gravity Probe B has finished collecting data for its mission to test several aspects of Einstein's general theory of relativity, including the "frame dragging" of space itself (S&T: July 2005, page 32).
An introduction to the theory includes the following sections: (1) "Spacetime, Curved Spacetime, and Frame-Dragging"; (2) "'Seeing' Spacetime with Gyroscopes"; (3) "The Gravity Probe B Science Instrument"; and (4) "Concluding Questions of Gravity Probe B." The guide also presents seven classroom extension activities and demonstrations.
Gravity Probe B has finally confirmed that the Earth drags spacetime around as it rotates, like a spoon twisting in ajar of honey.
The long and controversial saga of the Gravity Probe B mission took another unfortunate twist late in 1999.
Gravity Probe B went into orbit in 2004 after 4 decades of development and seven NASA reviews that often threatened to cancel it.
Even the Earth is supposed to exert this "frame-dragging" force on its environs, and the Gravity Probe B spacecraft will try to measure this effect once it is launched in 2000.
Now, thanks to a data trove collected by a satellite called Gravity Probe B, scientists are poised to test Einstein's theory more rigorously than ever before.
Among these were the infrared Spitzer Space Telescope and Gravity Probe B, a mission to test Albert Einstein's theory of gravitation.
Still, skepticism about the laser method lingers, especially from researchers associated with a space experiment known as Gravity Probe B (SN: 9/25/04, p.