posted on Apr, 5 2011 @ 06:13 PM
reply to post by EarthCitizen07
I am not an astrophycist but rellying on SURFACE rocks to determine planet density has SEVERE limitations. If the crust is really hard it can
fool people into thinking the mantle and core are also hard when in reality only the crust is.
The weight of the upper layers tends to compress the lower layers, making them denser. If the Moon's density were similar to Earth's it would
suggest that it, too, has a Nickel-Iron core, which in turn would generate a magnetic field. Although there are localized magnetic fields on the Moon,
corresponding, no doubt, to Nickel-Iron meteorite below the surface, it lacks a planetary magnetosphere. All this is internally consistent.
Where is the neutral point of gravatitional lock between the earth and moon?
I'm not sure what you mean by this, but the center of gravity of the Earth-Moon system is below the surface of the Earth.
Why did astronauts say "the moon rang like a bell"?
They didn't. A lunar seismologist described to lengthy propagation of seismic energy caused by the impact of the lunar module to the "ringing of a
bell." The sharply differentiated zones of the Earth's crust and mantel tend to diffract the seismic energy. He was surprised at how
undifferentiated the seismic energy was on the Moon. They also theorized that it may be due to the lack of water, as water dampens seismic energy"
The first man-made crash directed at the Moon that could be detected by a seismometer occurred after the Apollo 12 astronauts had returned to the
CSM and the LM ascent stage was sent smashing into the Moon's surface. The shock waves of this impact surprised the scientists - the Moon vibrated
for over 55 minutes!! Also, the kinds of signals recorded by the seismometers were utterly different from any ever received before, starting with
small waves, gaining in size to a peak, and then lasting for incredibly long periods of time. A seismic wave took 7 to 8 minutes to reach the peak of
impact energy and then gradually decreased in amplitude over a period that lasted almost an hour. It was claimed that even after an hour the minutest
reverberations had still not stopped.
When the Apollo 12 LM hit the lunar surface at 6,048 kilometers per hour, 72 kilometers from the landing site, digging an estimated 9 meter wide
crater, the results were astonishing. All 3 seismometers in the package recorded the impact, which set up a sequence of reverberations lasting nearly
an hour. Nothing like this had ever been measured on Earth.
The LM impact occurred at 1617 USCST November 20 1969. A news conference had been scheduled to begin at 1630, and when it did start, the Moon was
still "ringing" as the scientists - all of them seismic experts - arrived at the news center from their laboratories.
Maurice Ewing, co-head of the seismic experiment, told the afternoon crowd of the unexpected event, informing them that the Moon was still ringing. He
confessed he was at a loss to explain why the Moon behaved so strangely. "As for the meaning of it," Ewing announced, "I'd rather not make an
interpretation right now. But it is as though one had struck a bell, say, in the belfry of a church a single blow and found that the reverberation
from it continued for 30 minutes." As he spoke the reverberations continued on for another 25 minutes.
Dr Ross Taylor, a lunar scientist who had been on the team to examine the Apollo 11 samples in Houston, explains why the Moon rang for so long, "This
was one of those extraordinary things. When you had the impact of these things on the Moon, unlike a terrestrial earthquake, which dies away quickly,
the shock waves continued to reverberate around the Moon for a period of an hour or more, and this is attributed to the extremely dry nature of the
lunar rock. As far as we know there is no moisture on the Moon, nothing to damp out these vibrations. The Moon’s surface is covered with rubble and
this just transmits these waves without them being damped out in any way as they are on Earth. Basically, it’s a consequence of the Moon being
Why did nasa drop nuclear projectile on the surface recently if they already know the answer. I mean "we" have already been there quite a few
times already, so what more is there to see and explore, right........
They didn't. You must be thinking of this:
Moving at a speed of more than 1.5 miles per second, the Centaur upper stage hit the lunar surface shortly after 4:31 a.m. PDT on October 9, 2009,
creating an impact that instruments aboard LCROSS observed for approximately four minutes. LCROSS then impacted the surface at approximately 4:36 a.m.
It was not nuclear, it was kinetic.
And why does china and india want to go back? Do they NOT believe nasa? Are they part of the nwo?
There is still a lot of research to be done, and the country that does it gains "bragging rights." In case you haven't been following the news,
China and India are
the "new world order!"