Weight is measured, not gravity. Gravity cannot be measured. Why is that? Because gravity is a concept. Newton saw the same thing everyone else did. He postulated that there was some force, he called it gravity. Gravity is not known by any of the 5 physical senses by which we can measure the physical, gravity is known by the mind alone as a concept. The force of gravity simply cannot be measured, the effects of gravity can be measured, but not gravity itself. Gravity is a calculation of effects, suggested (which is why it is still a theory) as a factor in the way matter reacts to other other matter. Take all matter away, where is gravity? LOL!!! Truly and accurately speaking we measure matter, not energy or forces. The mind (which is not physical) allows man to project into reality the application of mathematics (which is also not physical) to matter and energy to predict what will happen in the future event. We measure the past, we predict in the future, but the present moment is beyond any measurement, along with gravity because the tools of measurement are physical, and the calculations that yield the predictions or equations are not physical. It is clear the non physical exists, and it is also clear the non physical influences the physical, so why is it so hard for people to grasp the concept (also non physical) of God who is non physical having causal impact on the creation of the physical? p.s. If you really want to be accurate about things, there are other logical possibilities beyond gravity that would explain the way material bodies interact, however I am not arguing that a relationship doesn't exist between physical bodies, and if we want to call that gravity, so be it. The name is irrelevant. The point is that we cannot measure it, we can only calculate it in the mind because it is impossible to measure gravity with physical instrumentation.
"Mathematics is an invention of man, just as typing is an invention of man." Oh, so in your esteemed opinion, before man "invented" mathematics, the laws of mathematics did not exist?
One would think if gravitons actually existed we would have caught at least one by now. Nevertheless ignorant people go on believing as if gravity actually existed without the slightest bit of evidence. Now where have I heard that argument before?
is magnetism also just a "concept"? is light just a concept? is the "mind" just a concept? are YOU just a concept? without that very real "concept" of gravity YOU cease to exist. how real is that
Anything that is beyond the physical senses to measure, though it exists in a non physical realm, is beyond measurement, and is known only by the mind as a concept.
Few people think deeply... They don't question, so you have many brilliant scientists who know how to work within that dimension, who are dullards as to any search for deeper truths... The materialists argue that matter is all there is, when the very concept they are trying to pitch...is non physical and not of a physical nature. Ridiculous, but people will expend lots of energy to defend their wrong positions.