Space time and Spin

Many of nature’s deepest mysteries come in threes. Why does space have three spatial dimensions (ones that we can see, anyway)? Why are there three fundamental dimensions in physics (mass M, length L and time T)? Why three fundamental constants in nature (Newton’s gravitational constant G, the speed of light c and Planck’s constant h)? Why three generations of fundamental particles in the standard model (e.g. the up/down, charm/strange and top/bottom quarks)? Why do black holes have only three properties—mass, charge and spin? Nobody knows the answers to these questions, nor how or whether they may be connected. But some have sought for clues in the last-named of these properties: spin.
Many Faces of Spin
Spacetime and Many Faces of Spin www.scinotech.com
Gravito-Electromagnetism
Gravito-Electromagnetism www.scinotech.com
  Kip Thorne’s “missing inch”
Geodetic Effect
Geodetic Effect www.scinotech.com
Geodetic Effect
 Frame-Dragging Effect
Frame-Dragging Effect www.scinotech.com
Frame-dragging Effect
 Genesis of GP-B
Genesis of GP-B www.scinotech.com
How small is 1/10th of a milliarcsecond?
Drag-free motion
London Moment readout 
Astrophysical Significance
Astrophysical Significance www.scinotech.com
Kip Thorne discusses black holes in the context of GP-B

Cosmological Significance
Cosmological Significance www.scinotech.com
Kip Thorne discusses the significance of GP-B for astrophysics & cosmology


In physics, spacetime is any mathematical model that combines space and time into a single interwoven continuum. Since 300 BCE, the spacetime of our universe has historically been interpreted from a Euclidean space perspective, which regards space as consisting of three dimensions, and time as consisting of one dimension, the “fourth dimension”. By combining space and time into a single manifold called Minkowski space in 1905, physicists have significantly simplified a large number of physical theories, as well as described in a more uniform way the workings of the universe at both the supergalactic and subatomic levels. 
Source : wikipedia.org

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