Need small gravity waves research progam

[Whereisup]

We need a research program to discover what small gravity waves do when they are generated in various shapes. A small gravity wave would be produced by a vibrating atom, or vibrating very small masses. These could be placed in a arrays to study various ways of shaping the small gravity waves.

I don't know whether or not there would be any interesting results, and what the results might be. This research might or might not lead to new technologies.

I do know that there is much about gravity that is puzzling.

For example, according to Supergravity Theory (you can google) gravity can punch through more dimensions than electromagnetism can. In addition, gravity actually bends space, which is somewhat weird. Among other things, that means that even atoms have small bends in space which travel along with them, because atoms have gravity. Even subatomic particles like electrons, protons, quarks, etc. bend space by tiny amounts.

So I think we should do as much research on gravity as possible. Who knows what important knowledge that might lead to.

Jim

 

[waltky]

A natural cosmic laboratory...

Triple-Star System May Answer Questions About Gravity
January 06, 2014 ~ The discovery of a three-star system may yield clues that help scientists define the true nature of gravity.

The system, which consists of two white dwarf stars and a superdense pulsar, all packed within a space smaller than Earth's orbit around the Sun, could help resolve outstanding problems with Einstein’s Theory of General Relativity. "This triple system gives us a natural cosmic laboratory far better than anything found before for learning exactly how such three-body systems work and potentially for detecting problems with General Relativity that physicists expect to see under extreme conditions," said Scott Ransom of the National Radio Astronomy Observatory (NRAO).

Using the exact timing of the pulsar’s lighthouse-like beams of radio waves, astronomers were able to calculate the geometry of the system and the masses of the stars with unparalleled precision. The pulsar, which is 4,200 light-years from Earth, spins about 366 times per second. Pulsars are formed when a massive star explodes as a supernova and its remains collapse into a superdense neutron star, some of its mass is converted into gravitational binding energy that holds the dense star together. Scientists say that the system could offer the best opportunity to discover a violation of a concept called Equivalence Principle. This principle states that the effect of gravity on a body does not depend on the nature or internal structure of that body.

Millisecond pulsar, left foreground, is orbited by a hot white dwarf star, center, both of which are orbited by another, more-distant and cooler white dwarf, top right.

The most famous experiments illustrating the equivalence principle are Galileo's reputed dropping of two balls of different weights from the Leaning Tower of Pisa and Apollo 15 Commander Dave Scott's dropping of a hammer and a falcon feather while standing on the airless surface of the Moon in 1971. "While Einstein's Theory of General Relativity has so far been confirmed by every experiment, it is not compatible with quantum theory. Because of that, physicists expect that it will break down under extreme conditions," Ransom explained. "This triple system of compact stars gives us a great opportunity to look for a violation of a specific form of the equivalence principle called the Strong Equivalence Principle," he added.

Under the strong equivalence principle, the gravitational effect of the outer white dwarf would be identical for both the inner white dwarf and the neutron star. If the strong equivalence principle is invalid under the conditions in this system, the outer star's gravitational effect on the inner white dwarf and the neutron star would be slightly different and the high-precision pulsar timing observations could easily show that. "By doing very high-precision timing of the pulses coming from the pulsar, we can test for such a deviation from the strong equivalence principle at a sensitivity several orders of magnitude greater than ever before available," said Ingrid Stairs of the University of British Columbia. "Finding a deviation from the Strong Equivalence Principle would indicate a breakdown of General Relativity and would point us toward a new, correct theory of gravity," she added. "This is a fascinating system in many ways, including what must have been a completely crazy formation history, and we have much work to do to fully understand it," Ransom said.

Triple-Star System May Answer Questions About Gravity

 

[waltky]

Granny says it's dem gravity waves dat makes yer butt sag when ya get old...

Ripple effect: scientists await word on gravitational waves
11 Feb.`16 - A century ago, Albert Einstein hypothesized the existence of gravitational waves, small ripples in space and time that dash across the universe at the speed of light.

But scientists have been able to find only indirect evidence of their existence. On Thursday, at a news conference called by the U.S. National Science Foundation, researchers may announce at long last direct observations of the elusive waves. Such a discovery would represent a scientific landmark, opening the door to an entirely new way to observe the cosmos and unlock secrets about the early universe and mysterious objects like black holes and neutron stars.

An artist's rendering of an outburst on an ultra-magnetic neutron star, also called a magnetar​

Scientists from the California Institute of Technology, the Massachusetts Institute of Technology and the LIGO Scientific Collaboration are set to make what they bill as a "status report" on Thursday on the quest to detect gravitational waves. It is widely expected they will announce they have achieved their goal. "Let's say this: The first discovery of gravitational waves is a Nobel Prize-winning venture," said physicist Bruce Allen of the Max Planck Institute for Gravitational Physics in Hannover, Germany. "I believe in the next decade, our view of the universe is going to change really quite dramatically," added Abhay Ashtekar, director of Penn State University's Institute for Gravitation and the Cosmos.

Einstein in 1916 proposed the existence of these waves as an outgrowth of his ground-breaking general theory of relativity. "Gravitational waves are literally ripples in the curvature of space-time that are caused by collisions of heavy and compact objects like black holes and neutron stars," Ashtekar said.

'MOVING MASSES'

See also:

Einstein's gravitational waves detected in landmark discovery
11 Feb.`16 - Scientists for the first time have detected gravitational waves, ripples in space and time hypothesized by Albert Einstein a century ago, in a landmark discovery announced on Thursday that opens a new window for studying the cosmos.

The researchers said they identified gravitational waves coming from two distant black holes - extraordinarily dense objects whose existence also was foreseen by Einstein - that orbited one another, spiraled inward and smashed together at high speed to form a single, larger black hole. The waves were unleashed by the collision of the black holes, one of them 29 times the mass of the sun and the other 36 times the solar mass, located 1.3 billion light years from Earth, the researchers said. "Ladies and gentlemen, we have detected gravitational waves. We did it," said California Institute of Technology physicist David Reitze, triggering applause at a packed news conference in Washington. "It's been a very long road, but this is just the beginning," Louisiana State University physicist Gabriela Gonzalez told the news conference, hailing the discovery as opening a new era in astronomy.

Multiple images of a distant quasar from NASA’s Chandra X-ray Observatory and the Hubble Space Telescope.​

The scientific milestone was achieved using a pair of giant laser detectors in the United States, located in Louisiana and Washington state, capping a decades-long quest to find these waves. "The colliding black holes that produced these gravitational waves created a violent storm in the fabric of space and time, a storm in which time speeded up, and slowed down, and speeded up again, a storm in which the shape of space was bent in this way and that way," Caltech physicist Kip Thorne said. The scientists first detected the waves last Sept. 14.

An artist's illustration shows a supermassive black hole with millions to billions times the mass of our sun at the center, surrounded by matter flowing onto the black hole in what is termed an accretion disk​

The two instruments, working in unison, are called the Laser Interferometer Gravitational-Wave Observatory (LIGO). They detected remarkably small vibrations from the gravitational waves as they passed through the Earth. The scientists converted the wave signal into audio waves and listened to the sounds of the black holes merging. At the news conference, they played an audio recording of this: a low rumbling pierced by chirps. "We're actually hearing them go thump in the night," Massachusetts Institute of Technology physicist Matthew Evans said. "There's a very visceral connection to this observation."

'A NEW SENSE'

 

[ScienceRocks]

better vote democrat!!! Better hope democrats win big!