116: “There has also never been a single experiment in history showing an object massive enough to, by virtue of its mass alone, cause another smaller mass to orbit around it. The magic theory of gravity allows for oceans, buildings and people to remain forever stuck to the underside of a spinning ball while simultaneously causing objects like the Moon and satellites to remain locked in perpetual circular orbits around the Earth. If these were both true then people should be able to jump up and start orbiting circles around the Earth, or the Moon should have long ago been sucked into the Earth. Neither of these theories have ever been experimentally verified and their alleged results are mutually exclusive.”

First, there have been many demonstrations of such effects. Every time a satellite or space craft orbits the earth or the moon, that is such an experiment. Of course, you like to use your irrational conspiracy theories to discount such evidence. So let’s set that aside for now.

Now, for an object to cause another to orbit it, it has to have quite a large mass, like a large asteroid. How would you suggest we test such a thing directly on Earth? And your magic conspiracy thinking automatically rules out any test out in space!

“First, since the gravity predicts planetary orbits very well, and led to the discovery of a new planet when it didn't fit, it's quite well established even without direct experimentation.

You do realise airplanes, rockets, satellites and various other things are built using Newton's law of gravity? Good.

So here's the Cavendish experiment:

The Cavendish experiment, performed in 1797–98 by British scientist Henry Cavendish, was the first experiment to measure the force of gravity between masses in the laboratory and the first to yield accurate values for the gravitational constant

You know, it's generally a good idea to keep up to date. Using arguments that haven't been valid since before the bedford level experiments - arguments that haven't been valid for more than 200 years doesn't bode well for your credibility.

Note that the Cavendish experiment has been reproduced a great number of times. “

http://blog.daimonie.com/2015_11_01_archive.html

Some YouTube video showing the Cavendish experiment being reproduced and confirmed:

Incomprehension of the model + False claim

A constant orbit of an object is defined by a certain velocity that creates a certain inertial (centrifugal) force, when acted upon by another force (in this case: Gravity), with both forces being of equal value. So, where is the object supposed to go? Following the orbit, of course.

The gravitiational force decreases by the distance to the center of gravity squared:

https://en.wikipedia.org/wiki/Gravity_of_Earth

So for ISS at 400km altitude it's 9.81m/s²*(6371/6771)² =  8.69 m/s².
For the pull between earth and moon at 385,000km it's 9.81m/s2*(6371/385000)² = 0.0027 m/s²

That's why the moon even with its huge mass (higher inertia) needs less speed than the ISS to stay in a stable orbit.

http://200proofsearthisnotflat.blogspot.co.uk/2016/02/debunking-dubay-110-119200.html

Dubay simply asserts that:  "The magic theory of gravity allows for oceans, buildings and people to remain forever stuck to the underside of a spinning ball while simultaneously causing objects like the Moon and satellites to remain locked in perpetual circular orbits around the Earth . If these were both true then people should be able to jump up and start orbiting circles around the Earth, or the Moon should have long ago been sucked into the Earth."

Why, in the name of reason, Mr Dubay? How do any of those wild conclusions follow from the premises?

What make you think we “should” be able to jump off the earth. That’s so crazy that I can’t even work out what you muisunderstanding is. Neither of these assertions in your last sentence follow at all from anything that goes before.

On the contrary, it is our knowledge of gravity that allows us to understand exactly why we can’t jump into orbit, except by using very powerful machines such as rockets.

The gravity of a body is proportionate to its mass. The earth is very massive indeed, so it exerts a strong gravitational attraction. To jump off the earth, we would have to exert a more powerful force in the opposite direction, upwards. Our legs aren’t strong enough. That’s it.

“or the Moon should have long ago been sucked into the Earth. “

Again, why? Again, this shows that you don’t understand the principles you are rejecting. In this case, you do not understand how an orbit works, yet you claim to know that the explanation is wrong, even though you don’t understand it.

The moon would only have been pulled in to the earth if there was no other force acting in the opposite direction. But there is such a force - inertia, the basic tendency of matter to keep moving in a straight line unless another force acts on it. So,  at every moment of time, the moon is both (a) being pulled inward towards the earth and (b) tending to fly off in a straight line, that is at a tangent to the circle of its orbit.

Think about whirling a weight around on the end of a string. The string is the force of gravity, pulling inwards to hold the moon in place. The force that makes the weight fly outwards if you let go of the string is the inertia (sometimes called the centrifugal effect).

“Neither of these theories have ever been experimentally verified and their alleged results are mutually exclusive.”

A very confused and unclear statement, which is either simply  false statement, or so self-contradictory  as to be meaningless. 

The fact that you mention “alleged results” admits that you do know of such experiments, contrary to claim that “no such theories have ever been experimentally verified”. It’s really completely unclear which these “theories” (plural) are.  In any case the fact that you (sometimes) claim to be ignorant of such experiments does not prove they didn’t happen.

The only thing you have actually proved is that you are deeply confused.