[AntiGuv]

	The Problem with Gravity

	Einstein's Warped View of Space Confirmed

	Strings Attached: New Study Puts Limits on Physics of Extra Dimensions

	Dark Energy Tied to Human Origins

[AntiGuv]

puzzle ping!

[TC Rider]

I think the gravity is leaking into my gut.

[RightWhale]

Yes, this may be testable. There was a different name associated with this idea, but I don't recall who it was, another physicist, a woman, I think.

[Mr Ramsbotham]

I'm reminded of paleoanthropologists who create a new subspecies every time a bone pops up.

[lafroste]

Gravity leakage should create minor deviations in the motion of planets and moons. Astronauts on the Apollo 11 mission installed mirrors on the lunar surface. By shooting lasers at the mirrors, a reflected beam can be monitored from Earth to measure tiny orbital fluctuations. Dvali said deviations in the Moon's path around Earth might reveal whether gravity is really leaking away.

Interesting theory. I would like an experiment of very accurate measurements of the Earth's gravitational field at different points in its solar orbit. Unfortunately, the hypothosis behind the experiment dictates that those measurements cannot be made on Earth or near Earth, making execution just a bit of a challenge.

I bet you would find variations on the order of 10E-13 at different orbital positions.

[GloriaJane]

I don't understand this. What happened to the big bang they have been telling us was the reason for our creation? Are they going away from that one new?

That one I could at least wrap my mind around because it worked in the same way shooting a shot gun worked. The shot in the shell expands outward as it travels. The further the shot travels the wider the separation of the pellets when they hit their target. That I can see. These new idea's just befuddle me.

[ValerieUSA]

Why doesn't the moon crash into the earth?

[redheadtoo]

Gravity is leaking? No wonder my gravity bill is so high. I'll call the Gravity company to come out tomorrow and fix it.

[Traction]

First, it was black holes were keeping the universe from flying apart. Lately, it is an invisible dark matter. Now gravity must be leaking. I can’t believe this stupidity to justify a flawed theory of an expanding universe. As our deep space vehicles have shown, there is some unknown phenomenon that is slowing them down. Isn’t obvious that the same degradation happens to light. Older the light, farther it will have slowed and shifted toward the red. The universe is not expanding, light (and other radiate energy) shift to lower frequencies with time until they blend with the background radiation (do photons have a half-life of 12 billion years?). The universe is supposed to be 15 billion years old yet we can see well-defined galaxies 12 billions years old in any direction we look. Then there is nothing for 14 billion years from sources that we cannot even define as proto galaxies. How long does it take for a galaxy to form? Probably longer than 3 billion years for that much matter to gather (unless the gravity constant had changed in those early years). Is Hubble such an icon in the astronomy community that the red shift can never be questioned even when new empirical evidence gives another explanation?

[GeronL]

leaking gravity?? don't they have...um... pads for that?

[jennyp]

"Virtual gravitons exploit every possible route between the objects," Dvali said, "and the leakage opens up a huge number of multi-dimensional detours, which brings about a change in the law of gravity."

Hmmm... but then shouldn't some "virtual gravitons" also be leaking back into our dimensions? Perhaps there's a constant equilibrium ratio between the amounts of gravitons going in either direction. But OTOH, what if some local phenomenon can change that ratio? We should then be able to detect small variations at those locations.

[SlowBoat407]

I have a simple explanation that, on the surface, explains everytthing without dark matter, leaking gravity, etc.

Consider that the light from the nearest objects being used for red-shift data left their sources long before the first red-shift measurments were made. Now, suppose that the expansion of the universe has already stopped, and the collapse has begun. Therefore, we are accelerating and receding from objects that appear to be spreading outward because, at the time the light left them, they still were receding from one another. The farther away the objects are, the faster they would seem to be moving away from us, since it would take longer for evidence of their slowing down to reach us. The nearer objects seem to be moving away more slowly because we see evidence of their deceleration sooner.

It's simple, it follows the laws, and it doesn't depend on any hidden matter or leaking gravity.

I am not an astronomer, but I did stay at a Holiday Inn Suites last night, so fire at wiil!!

[O Neill]

Leaking gravity?

Dr. Venkman may have found a new, corporate direction:

Universal Plumbing

But will the EPA Administrator allow him to turn gravity OFF while he changes valves & pipe connections?

Time will tell...film at eleven.

[Doohickey]

What if the universe were actually like the inside of sphere. Galaxies appear to be flying away from each other, but in reality all converge again on the far side of the sphere?

[spodefly]

BTTT

[Nick Danger]

I still don't get it. How does gravity leaking into other dimensions explain the acceleration in the expansion of the Universe? It seems to me that still leaves something "repulsive" to be accounted for.

[SunkenCiv]

from 2005