rscientist, do not try to bullshit your way through this thread, it won't work with me.
And the graph you are presenting shows that the two balls did not leave the device used to throw them at the same speed. Any half competent scientist sees this graph and immediately finds a lot of questions you have not answered.It is an error DUE TO THE GRAPHICS USED, not the experiment itself!

Here are the results of the experiment where better graphics were used:

It is devious for you to resort to this kind to trickery to try to fool the readers.
You have not addressed the essential feature of the DePalma experiment:
The spinning ball actually weighed less, and travelled higher than its non-spinning counterpart.
This experiment alone is enough to show that there is no such thing as attractive gravity.
http://www.brucedepalma.com/n-machine/spinning-ball-experiment/http://www.evert.de/eft907e.htmA ball spinning at 27,000 RPM and a non-spinning ball were catapulted side-by-side with equal momentum and projection angle. In defiance of all who reject the ether as unrealistic, the spinning ball actually weighed less, and traveled higher than its non-spinning counterpart.
First, commercial gravimeters have a precision of some 10 microgals, which means a precision of about 0.01 parts per million. And this is a portable unit (Micro G LaCoste A-10), not even a state of the art non-portable unit! Even if you want to give yourself a good margin of error, you are measuring the acceleration of a ball falling through vacuum with an error of 0.1 parts per million. In this experiment the error is more than 3000 parts per million!
The nominal gravity is given as 980cm/s^2 = 980Gal. Gravity measurements are often given in units of micro-gals: 1 μGal = 10^-6Gal. One micro-Gal (µGal) precision requires a measurement of the earth’s field with a precision of 1 part in 10^9(1 part/billion).
http://www.microglacoste.com/pdf/A-10Manual.pdfThe requirements for accuracy in absolute gravity measurements are much the same for the geodesist and the metrologist. An accuracy of one part
in a million is critically needed and an accuracy of one or two parts in ten million would be most desirable.
http://digicoll.manoa.hawaii.edu/techreports/PDF/NBS107.pdfTherefore your statement is false and misleading; no real science, just bullshit on your part.
FURTHERMORE, the Micro-g LaCoste A-10 is a field stated industry standard, and has proved itself in environments as extreme as the high Arctic and the deserts of the Middle East.
http://scintrexltd.com/dat/content/MgL_A10.pdfThe A10 operates by using a free-fall method. An object is dropped inside a vacuum chamber and its position is monitored very accurately using a laser interferometer. In 2004, the BIPM (Bureau International de Poids et Mesures) proclaimed the ballistic freefall method as an official primary method for measuring gravity.
The publicity material of the manufacturer shows examples where precision better than 1 μGal is reached (Micro-g LaCoste, Inc., 2010). The results of gravity measurements with the A10 gravimeter performed during last decade by different research teams show a steadily
improved performance (Liard and Gagnon; 2002; Duquenne et al, 2005; Schmerge and Francis, 2006; Kryński and Roguski, 2009; Bonvalot et al., 2009, Falk et al., 2009, Nielsen et al. 2010). Under laboratory conditions, the quality of the measurements is clearly better than that specifi ed by the manufacturer. Also the results of recent field measurements are very promising.
http://www.agu.org/pubs/eos-news/supplements/1995-2003/99144e.shtmlJ. M. Brown, T. M. Niebauer, B. Richter, F. J. Klopping, J. G. Valentine, and W. K. Buxton, “Miniaturized gravimeter may greatly improve measurements”: On the micro-g lacoste A-10 merits.
The gyro drop proves that the rotating gyroscope falls faster than its non-rotating counterpart.
Now, look at the results in the table that shows all the 20 ball drops. All the results on the "rotating" column except for two are slower than the fastest result on the "non-rotating" column! Even a quick glance at this table should tell you that there is nothing compelling in these results, but the author tries to show them as the demise for known Physics!http://depalma.pair.com/gyrodrop.html
Runs 3-7 show clearly what is going on: the rotating gyroscope is falling faster than its non-rotating counterpart.
What did you say? Known Physics? Nowhere in the Principia does Newton mention attractive gravity; on the contrary, he dismisses this known law in no uncertain terms:
A letter to Bentley: “That gravity should be innate, inherent, and essential to matter, so that one body can act upon another at a distance through a vacuum without the mediation of anything else, by and through which their action and force may be conveyed from one to another, is to me so great an absurdity that I believe no man, who has in philosophical matters a competent faculty of thinking, can ever fall into it.”
Newton calls your whimsical belief in the law of attractive gravity an absurdity, he tells that YOU have no competent faculty of thinking to believe in such a thing.
Here is Newton himself telling that terrestrial gravity is due to the pressure of ether:
Here is a letter from Newton to Halley, describing how he had independently arrived at the inverse square law using his aether hypothesis, to which he refers as the 'descending spirit':
....Now if this spirit descends from above with uniform velocity, its density and consequently its force will be reciprocally proportional to the square of its distance from the centre. But if it descended with accelerated motion, its density will everywhere diminish as much as the velocity increases, and so its force (according to the hypothesis) will be the same as before, that is still reciprocally as the square of its distance from the centre'
sokarul...these are the upper forums; you need to go back to a junior forum.
"Non spinning ball followed predicted path established by gravity"? He never made the claim "attractive gravity" is now invalid due to his experiment. But he does.
Basically the spinning object going higher than the identical non-rotating control with the same initial velocity, and, then falling faster than the identical non-rotating control; present a dilemma which can only be resolved or understood -- on the basis of radically new concepts in physics -- concepts so radical...Do you understand English? The spinning ball went higher than the identical non-rotating ball, and fell faster too, a clear violation of the law of attractive gravity.