That is not the FAG (free air gradient).
The free air gradiant is 0.3086 milligals per meter. You need to do the obvious and multiply by height to get the acceleration.
According to the answers I have got from professionals the free air gradient is 0,3048 milligal, or 304,8 microgal. But this is a “global” average value.
Off course if you have heavy rock in the underground FAG is stronger and if you have (light) chalk in the underground it will be weaker.
Diviation +/- 20 microgal from place to place is normal.
This explain that the measurement from floor 3 to 29 not shall be compared (locally and overall) with a FAG, within a inteval +20 or minus 20 microgal.
If you chose to add anything (e.g; 5 to 20 microgal) you can easy see this gives a tottally wrong pattern, because in this case you’ll have a pull upward from ground floor (GF) and the whole way to the top of the building, so in fact you have only one option : > to
deduct up to 20 microgal.
Doing so, (deducting appr. 10 microgal) you’ll see a
clear pattern , which mean that ADG will be averagely + 10 microgal from floor 4 and to the top.
A bit bumpy but still a clear and
stable pattern.
Basic Data >
http://www.science27.com/forum/ADGM7.htm
To add or deduct 20 microgal to the FAG is all what is allowed method.
There are no strange “baseline” so like you have try to show, - all what you have is FAG line, and as I wrote: - deepening where on earth you are, you can easy estimate it , simple by adding or deduction the mention values.
So there are no excuse for not accepting the FAG, - also not, even though we don’t know how heavy are the foundation is etc.
The foundation pulls upwards, hence more or less mass at the foundation will only give you more lees upwards pull.
So by comparing the local ADG floor by floor with the (estimated / modified) FAG you can easy and systematically (meter by meter) derterminate the local ADG contribution - due to the mass of the building is, - as well as you easy can see how the
overall pattern of the ADG of that building is.
THIS is what this discussion is about.
What you have done is:
forbidden manipulation.
So the situation is not as difficult as you believe.
We do not have rock here, hence most likely it only sound logical that you’ll have to
deduct 10 to 15 microgal from the standard FAG
Simply be deducting 10 microgal gives you the graph below.
Yes, the value at 3th floor looks strange.
The line from GF to 3th floor should have been more horizontal.
I will check the height of the building at all lower floors again, (myself), -soon, and will measure within millimeters accurately.
5 cm height off = 15 microgral.
Furthermore
The cellar and 3 lower floor will be g-measured in the CENTER of the building.
I expect MUCH stronger negative gravity here.
Please remember this prediction.
Already I have
rough (positive) g-data from the upper floors.
So RC, you have a very limit “space”, to speculate, (+/- 20 Microgal compared to FAG) I hope you’ll understand that.
What you are trying to do is to manipulate the pattern that is objective measured.
That has been explained to you before - you have no idea what the local structures are (or even the structure of Domus Vista is) are so it could be
- The foundations.
- The shopping center atround the base of the building.
- The other buldings or
As I wrote above, all this is not so primary important.
Off course a heavy floor / walls ( at the bottum at the building) will contribute comparable more to the local and overall pattern.
BUT all this MUST contribute to:
the upwards pull.
The whole point is to see the PATTERN locally and overall, - which actually mean; - is ADG stable or is +/- .
Can you point to whether ADG really decrease towards the center?
Answer: No you cannot, in no way, - except by completely manipulation, and by inventing a completely strange "baseline" that have nothing with anything to do.
Look for instance at
all the upper floors (above 3th floor) (form a overall perspective) you can NOT demonstrate the pattern you expect.
It is a bumpy “road”, yes, - but the there is NO overall uphill towards the top, but rather a flat road.
The day you understand that what seems to be a "flat horizontal line", in reality is a line upwards, this is the day you begin to understand central gravity.
So idiotic is that.
The COG of a rectangular building with floors of equal mass is in the center of the middle floor.
You can’t deny that the whole foundation IS PART OF THE BUILDING, - this part
MUST pull upwards, together with the 3 heavy lower floors.
I really believe these parts are enough to counteract the “positive mass” from above the COG, and hence that the COG is at 3th 4th floor.
At least this is the ONLY interpretation you so fare can reach based on the data we have.
I will try to get the drawings; it seems that the foundation must be very deep/heavy.
It is a Not Even An Idea
An idea should be stated in a clear enough way so that other people can understand it, understand how predictions from it are derived and make their own predictions from it.
This is not true of "central gravity". Your explanation of it is pitiful - space stretching? or dancing the fandango? Your predictions from it have no connection to "central gravity" except your assertion that they have a connection. That makes the idea and predictions all inside your head, i.e. a fantasy that generates delusions (the delusional aspects are explained below).
It is soooooo simple
Gravity = A Space vacuum.
This is why you can see a “depression” in the graph, at the COG.
Unless following the main thread and understanding the central space vacuum, you'll never understand gravity.
Experimentally Debunked 1
Your "central gravity" idea lead to you asserting that the ADG inside a sphere is constant. That is a delusion rather than an prediction because you have ignored the experimental evidence that the prediction is wrong since 2 November 2009 !
Real, tested science (Newtons law of gravity) predicts a varying ADG inside a sphere.
Systematical measurement with the only purpose: to graph the overall ADG pattern AND the COG have never been executed before.
The measurement done so fare CONFIRMS that ADG in a homogeneous mass is stable.
Fantasy from the Debunked Idea
Another idiocy from that "central gravity" fantasy is that the ADG at the center of a sphere is zero. Thus you probably have the rather idiotic idea that the ADG inside a sphere is zero. That is so obviously dumb - people do not float in mid air in basements, subways, mines, submarines, etc.
Alternately you may have the even more idiotic idea to make "central gravity" into even more of a fantasy by pulling another unsupported assertion out of your pet cow's bottom, e.g. that the ADG is constant and suddenly changes to zero at the center.
The “center” is not a “place”, but without distance. And hence a “place” where surrounding matter, pulls space from. This creates at space vacuum, or: a gradually increasing “space-density-depression” towards the COG.
Try to make a dumb idiotic Google search on: > “idiotic dumb counterbalance forklift”. The principle is almost the same.