originally posted by: Zeimten
Basically I've read a year ago that they believe the moon is hollow & that when it was hit by asteroids it would hit then produce a loud echoing on
Same as when the moon landing it created an echo in the interior of the moon. Anyone else believe this to be true ?
When you say that you read that the Moon is hollow, you were probably reading the inaccurate myth that came out of a NASA geologist saying that he
Moon "rang like a bell" when they did seismology a experiment in 1972 by crashing piece of space craft on one part of the Moon and seeing how a
seismograph registered that crash on another part of the Moon.
It IS true that the resulting vibration was said to "ring like a bell", but that was simply a metaphor used for describing the longer-than-expected
time of vibration after they crashed the old spacecraft into the moon. When the Moon vibrates (from moonquakes and from spent spacecraft crashing
back to it) the seismic vibrations last for a longer period of time than originally expected -- hours rather than minutes. That longer vibration
period is what they meant when they said it "rang like a bell"
They knew that seismic wave vibrations on Earth dampen within minutes, but those on the Moon do not, which was an unexpected find at the time.
However, the explanation for this is not
due to the Moon being hollow -- it's due to the Moon not being as cracked or as broken in
general than Earth.
This article explains it:
On Earth, vibrations from quakes usually die away in only half a minute. The reason has to do with chemical weathering, Neal explains: "Water
weakens stone, expanding the structure of different minerals. When energy propagates across such a compressible structure, it acts like a foam
sponge--it deadens the vibrations." Even the biggest earthquakes stop shaking in less than 2 minutes.
The moon, however, is dry, cool and mostly rigid, like a chunk of stone or iron. So moonquakes set it vibrating like a tuning fork. Even if a
moonquake isn't intense, "it just keeps going and going," Neal says. And for a lunar habitat, that persistence could be more significant than a
This is what they meant when they said "it rang like a bell"
. You can also say "it rang like a tuning fork"
. Bells and
tuning forks that are not cracked will vibrate for a longer period of time than one that is cracked.
So no. If you read that the Moon was hollow because it rings like a bell, then the source of information you were reading could have been wrong.
Many laymen who don't understand the Moon's geology have made the same mistake by coming to the wrong conclusion about NASA saying that the Moon "rang
like a bell".
& the dark side summed up do y'all think anything even exists on the other side or possibly just our imaginations? Heard it isn't even dark on
that side that light still covers it from the sun, some expirement with a basketball and a flashlight proved it.
Of course the far side gets light. Who (among people who have even a basic understanding of the moon that they could have learned in school) says it
The moon rotates once every ~28 days, so all parts of the Moon get ~14 days of "daylight" and ~14 days of "night". When we see only a 1/4 moon (when
half of the part that faces us is lit up), there is half of the far side that is also lit up. When the moon is in the New Moon phase (when the side
facing us is totally dark) the far side is 100% lit.
I mean, when the Moon isn't full (not totally lit) when seen from Earth, what do you think is lit/not lit on the side you can't see? You can do the
experiment with the basketball and flashlight you mentioned if you need to, but just simply that when half of the side facing us is lit, the half of
the side not facing us is also lit. Similarly when a sliver of the side face us is lit (say 1/8 of the near side, for example), then 7/8 of the far
side must also be lit.
As for there being things on the far side, many different countries have fully photographed it (Russia, Japan, China, and the U.S.), and none of those
photos have shown evidence of anything unnatural about it.
edit on 2016-10-18 by Soylent Green Is People because: (no reason given)