I have made error calculations, but due to my equipment these are about 20%.
The pictures are the result of calculations. You must search on my website. Search gravitatie with the extension Belgium.
I have other interesting results, because my age 75 and relatif primitive equipment, I only hope, that other scientists will contact me, and discuss the results . on this moment there are more thab 50 pages.
I thank you for your interest.
sorry, 2*3000 must be 2*3000F
in other picture 2*300F MUST BE 2*3000F