how can you detect gravity waves OR gravitons?

Question

( their velocity )

Answer 1

A quite big equipment is needed for that, so you and me can't do that.

Try this: http://en.wikipedia.org/wiki/Gravitational_waves#Detection
andthis: http://en.wikipedia.org/wiki/Weber_bar

Here a pic of such detector to give an idea of what i mean by "quite big":
http://en.wikipedia.org/wiki/Image:Northern_leg_of_LIGO_interferometer_on_Hanford_Reservation.JPG

Answer 2

The magnitude of the force of gravity can be measured, but the means by which it propagates can not be detected. It has been theoretically referred to as a graviton (particle) but it could be more like a wave, or both. Currently, scientists are working to build particle accelerators and detectors that may one day be able to detect the graviton, but for now they can not even fully describe it or predict it mathematically.

Answer 3

Gravity waves are created at the same time as black holes collide EDIT: one in each of Einstien's innovations is that gadgets reason the gap round them to curve. He idea that enormous gadgets, like the sunlight, curve the gap round them more beneficial than small gadgets do. gadgets shifting through area follow the curvature. at the same time as area is curved sharply sufficient--like it really is around the sunlight--planets, asteroids, and comets shifting alongside the curve are in orbit! If no longer for the curvature of area, they'd all go back and forth immediately into area, far off from the sunlight. And it truly is what gravity is somewhat about. If mass curves area, then very large 1000's shifting promptly through area would create ripples in area. accordingly Einstein envisioned gravitational waves--like ripples on a cosmic pond. the biggest gravitational waves will be led to through huge activities--as an celebration, 2 huge stars orbiting one yet another, or a large superstar orbiting a black hollow, or 2 black holes orbiting one yet another. EDIT: Black holes are not cosmic vacuum purifier. they don't suck issues in. the only way for an merchandise to be 'ate up' through a black hollow is that if it passes through the progression horizon, also conventional because the 'aspect of no go back'. once an merchandise passes through the EH, it ought to no longer talk with gadgets outdoors the black hollow as a results of large gravitational field

Answer 4

There has been no direct detection of either one. However, there are cases of binary pulsar systems which theoretically would emit gravitational waves. The energy emitted in this way would imply that the pulsars would slowly cicle into each other. This effect has been detected, even though the waves themselves have not.

The attempts to detect gravitational waves have focussed on the 'shear forces' caused by such waves. These forces are incredibly small and hard to detect, though. The latest facility trying to detect them is described here:

http://www.ligo.caltech.edu/LIGO_web/about/

Answer 5

Various research groups have been trying to do just that since the 50's (and they've spent a sh|tload and a half of man hours and dollars on it) but, so far, no success :(


Doug

Answer 6

http://www.nasa.gov/multimedia/imagegallery/image_feature_484.html

http://www.gravitywaves.com/

Answer 7

by dropping something