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What do you think an experiment does? Science is done in steps. Step one - observe and hypothesize. Once you have your hypothesis, you want to test it to see if it is correct so you create a test scenario. That test scenario is called an experiment. The experiment generates data points...

What makes you think they don't do experiments? The Very Large Array in New Mexico is a radio telescope that is constantly collecting data. Astronomers request time on the array to collect data on specific areas. Once the data comes in, it is shared with the world and scientists try to see if...

If you get deep into the details of orbital mechanics you would find that the orbits of planets and moons do change ever so slightly over time. The rotation of the Earth is slowing because of tidal effects. We usually neglect these changes as they are so small they do not effect the orbiting...

Velocity does noe effect gravity. Gravity effects velocity.

It is possible for a constant in a mathematical solution to vary within a range and the solution is still valid. In this case, the gravitational attraction can vary by 3% and the system remains stable. The absolute gravity of the two bodies, the Earth and the Sun, does not change. True. But...

Well, since the Earth has repeatedly been shown to be a globe, your assertions about flat Earth gravity mean nothing.

Varying by a constant amount isn't a cotridiction in terms. IF you understand the terms. None. Why would it? Gravity is a function of mass, not velocity.

Gravity never changes at it is a function of mass. The gravitational attraction between the Sun and Earth varies by 3%.

Curvature was not an issue as they were following a specific strata of rock. That was some really poor research on the part of the person making the video. He attempts to make an issue of the drawing that shows the water being flat. He failed to pay attention to scale. The x axis is in...

According to your video, the combined gravitational pull of the sun and the moon during an exclpise is 0.41740756 newtons. That amounts to 1.501 ounces. A 70kg person weighs 2469.177 ounces.

Well I feel stupid. For some strange reason I thought PJ had written that post. Totally my bad.

Why wouldn't gravity work on a globe? Our best understanding of gravity is that it is a function of mass. The more mass something has, the more gravity it has. Gravity always pulls towards the center of mass so on a globe model, gravity always pulls to the center of the globe. On a flat...

With a lot of what has been said on this thread and others, I'm not so sure it WAS sarcasm.

It is a scientific theory. A scientific theory is defined as: a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported theories are not "guesses" but reliable...

How could this possibly be a NASA hoax? Density was defined long before NASA was formed. Archimedes, who lived 287 –  212 BC is the one who first identified the principle. Does it ever bother you that you cannot answer a single question with a simple and direct answer?

DFT_Dave and @Patric Jane, I'm wondering what your thoughts are about this?

Well, no, it is not. Density is physical property of matter. It is defined as unit mass per unit volume (such as kg/m^3 - kilograms per cubic meter.) . So take a piece of steel that is 3 feet long. Cut it into a 1ft piece and and a 2ft piece. Since both pieces came from the same piece of...

You really want to try this again. Read Right Divider's post. There really is no leg for you to stand on with this assertion of yours as it is so easily proven wrong.

Good morning Patric. I am still waiting for you to tell me what you think density is and what a small amount of gravity is.

Your last sentence is a false dichotomy. The Suns rays meet wether the sun is 3,000 or 93,000,000 Miles away. The main difference is that at 93,000,000 miles the angle between the rays is essentially 0