*snip*
Anyway you should be able to point to a place where the measured ADG line is crossing the FAG line.
My friend you CANNOT, unless manipulating everything to a different planet. –
PLEASE – RESPECT – You have a limit (very few percent) to adjust for "disturbances", and this will NEVER make it possible to adjust the increasing 160µgal negative ADG towards the 3 rd floor, - out in the BUSH.
The heavy concrete floor at 3rd floor, (mainly) only disturbs the measuring on 3rd floor.
It will give you a local pull downwards.
All you need to do is just to add (estimate) some more negative ADG to that floor, - and this brings the COG near 5th floor.
My prediction has all the time been that ADG is stable towards to the COG.
OK; here we have Bjarne's predictions for the Domus Vista measurements.
So, it's
show-down time!
A few basic remarks and definitions:
Free Air Gradient (FAG): When you move up from the surface of Earth, you are moving away from Earth's Center of Gravity (COG). Gravity diminishes with the square of the distance from the COG (any COG), so as you go up, gravity goes down. Since the radius of Earth is very big, for low elevations like buildings, we can assume the FAG is linear, and it is app. 0.3086 mGal/meter.
Center of Gravity (COG): The point where an object is in balance in all directions. In the COG, the gravitational pull of the object or system in all directions cancel out.
Now for the Domus Vista results:
Bjarne has hired a reputable institute to measure the gravitational pull in the largest building he could find in Denmark, the Domus Vista in Copenhagen. As Danish skylines are universally quite low, the Domus vista is just 30 stories and ~100m tall. The measurements show the actual gravity in a standard station on each floor, in mGal, with 3 decimals. The measurements are corrected for tidal difference and instrument drift.
Obviously, the values show the combined gravity from Earth and the building. To find the contribution from the building, we must first calculate Earth's contribution. This is done by estimating the baseline, or reference, gravity of the spot. This would be the gravity in the building site, before the building was erected. As this value is not available, we must estimate it, and this can be done in a reasonable way, by guessing where the COG of the building is, and calculate it from that. Due to the heavy construction of the lower 3 stories, it seems that Bjarne and I agree that the COG lies as low as around the 6th floor.
So all we now have to do, for each floor (floor n) is to take the baseline gravity G
b, the elevation of the floor (E
n) from the drawing (also published by Bjarne), and the FAG, and subtract the measured gravity for the floor (MG
n) to find the building gravity for the floor (BG
n):
BG
n = G
b-(E
n*FAG)-MG
n
I have split up the calculation in two steps in the spreadsheet, so the columns show as follows:
A=Floor number
B=The measured gravity MG
C=The elevation in meters
D=The Free Air Gravity for the elevations in C, based on a baseline gravity of 981551mGal.
E=The final difference, which is the contribution of the building on each floor.
The graph shows the differential result on the Y axis. The X axis is the line number and not the floor number, but I expect even the cows among us can subtract 1 to find the floor number. The Zero line represents the FAG line.
As you can see, the graph shows, with minor unimportant bumps, two slopes: A fairly steep slope for the first 3-4 floors, corresponding to the heavy lower part of the building, and a more flat slope for the upper part. There is a gradual transition between the slopes.
All as predicted by conventional Newtonian Gravity.
So, Bjarne, your scientific work of measuring in the Domus Vista paid off. The result is clear and unambiguous: The conventional theory of gravity is correct, and your alternative thesis is wrong.
Thank you for playing, you owe me a dollar.
Hans
