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There is a state of matter called plasma, and hydrogen plasma has no electron. There is no evidence such particles without the electron are massless. On the contrary, we can measure things like the mass to charge ratio of such plasma atoms with a good deal of precision, and these measurements contradict your idea.
Originally posted by Sly1one
Because consequently the fundamental building blocks that make up mass only function due to spin or "orbit"...I would imagine if you reduced the spin/orbit of electrons to nothing mass wouldn't exist...and consequently neither would gravity.
Originally posted by Arbitrageur
There is a state of matter called plasma, and hydrogen plasma has no electron. There is no evidence such particles without the electron are massless. On the contrary, we can measure things like the mass to charge ratio of such plasma atoms with a good deal of precision, and these measurements contradict your idea.
Originally posted by Sly1one
Because consequently the fundamental building blocks that make up mass only function due to spin or "orbit"...I would imagine if you reduced the spin/orbit of electrons to nothing mass wouldn't exist...and consequently neither would gravity.edit on 10-3-2013 by Arbitrageur because: clarification
I am curious though if there is evidence of a large mass object not spinning on its axis that would have a gravitational effect...I don't think it would. Wouldn't it need to be spinning on its axis to have a gravitational effect? or at least have a "core" that is spinning on ITS axis?
It's hard to find an object that's not spinning at all, however if your idea is that the faster an object spins, the more gravity, we can find objects that rotate very slowly, such as the moon. Since the same side of the moon always faces the Earth, it's rotational period is very slow. On mercury the rotation is even slower, since its day is about twice as long as its year (1.999 actually).
Originally posted by Sly1one
Thanks for the reply and clarification and reply.
I am curious though if there is evidence of a large mass object not spinning on its axis that would have a gravitational effect...I don't think it would. Wouldn't it need to be spinning on its axis to have a gravitational effect? or at least have a "core" that is spinning on ITS axis?
The rotation of Mercury is a little strange to Earth bound creatures. It rotates on its axis very slowly compared to its orbital period. One rotation takes 175.97 Earth days according to NASA’s Solar System Exploration webpage, while one orbital period only takes 88 Earth days. The day is 1.999 times as long as a single year. The planet’s equatorial rotational speed is 10.892 km/h. These periods are given in solar days. In sidereal days Mercury rotates every 58.647 days and orbits twice during every three rotations.
The plane you refer to has been not so affectionately called the "Vomit Comet" but I don't understand why you think this says anything about angular movement and gravity. You may as well mention a skydiver jumping out of an airplane. They still experience gravity as they accelerate to terminal velocity, where air friction then balances out the acceleration. In the "Vomit Comet" they accelerate like a skydiver does but don't have the same air friction. There's a lot of confusion about this since it's sometimes described as a "zero-g" feeling but it's anything but zero-g. Even the astronauts which appear to be in zero-G conditions, are not. Gravity on the ISS is not that much lower than it is on Earth. The Zero-G appearance is an illusion.
Originally posted by totallackey
reply to post by Arbitrageur
I am sorry, but I believe it is angular movement that causes gravity...what about the planes they use to train astronauts? That plane goes up and down at angles and results in periods of weightlessness...further, it is the spin of any space station that results in gravity on the inside...
90% gravity is not zero G, it only looks like it, and on the vomit comet it's 99%+ of full gravity they are experiencing at all times. They are also subject to other, non-gravitational forces due to the plane's maneuvers.
if you’re up at the altitude of the International Space Station, you only experience 90% of the force of gravity you’d feel on the surface
Originally posted by Arbitrageur
It's hard to find an object that's not spinning at all, however if your idea is that the faster an object spins, the more gravity, we can find objects that rotate very slowly, such as the moon. Since the same side of the moon always faces the Earth, it's rotational period is very slow. On mercury the rotation is even slower, since its day is about twice as long as its year (1.999 actually).
Originally posted by Sly1one
Thanks for the reply and clarification and reply.
I am curious though if there is evidence of a large mass object not spinning on its axis that would have a gravitational effect...I don't think it would. Wouldn't it need to be spinning on its axis to have a gravitational effect? or at least have a "core" that is spinning on ITS axis?
www.universetoday.com...
The rotation of Mercury is a little strange to Earth bound creatures. It rotates on its axis very slowly compared to its orbital period. One rotation takes 175.97 Earth days according to NASA’s Solar System Exploration webpage, while one orbital period only takes 88 Earth days. The day is 1.999 times as long as a single year. The planet’s equatorial rotational speed is 10.892 km/h. These periods are given in solar days. In sidereal days Mercury rotates every 58.647 days and orbits twice during every three rotations.
We planned the messenger probe flyby of Mercury based on Mercury's gravity so we know it has gravity as expected from formulas that don't rely on rotation.
Originally posted by firsttimecaller
reply to post by blahxd67
Sorry I'm late but,
Florida
False. The idea can be tested without finding such a mass.
Originally posted by Sly1one
I understand how impossible this would be to test as you would need a completely stationary mass as a control for any experiment and that simply doesn't exist.
Just define what you think the mathematical relationship is and it can be tested. It's not necessary to have a stationary body to test it, all that you need are bodies rotating at various rates and you have enough of those to test your math. So, what is your math?
So I guess well never know if its simply mass or mass in angular momentum that creates gravity and how much.
Originally posted by Arbitrageur
False. The idea can be tested without finding such a mass.
Originally posted by Sly1one
I understand how impossible this would be to test as you would need a completely stationary mass as a control for any experiment and that simply doesn't exist.
Just define what you think the mathematical relationship is and it can be tested. It's not necessary to have a stationary body to test it, all that you need are bodies rotating at various rates and you have enough of those to test your math. So, what is your math?
So I guess well never know if its simply mass or mass in angular momentum that creates gravity and how much.
...but I don't understand why you think this says anything about angular movement and gravity
I have an idea for a sequel to the movie called "I know what I saw".
Originally posted by totallackey
Well, when you SEE people FLOATING in a weightless state, it would seem SEEING IS BELIEVING...
A common conception about spacecraft orbiting the earth is that they are operating in a gravity free environment. ...
Spacecrafts are held in orbit by the gravity of the planet which they are orbiting. In Newtonian physics, the sensation of weightlessness experienced by astronauts is not the result of there being zero gravitational acceleration (as seen from the Earth), but of there being no g-force that an astronaut can feel because of the free-fall condition, and also there being zero difference between the acceleration of the spacecraft and the acceleration of the astronaut. Space journalist James Oberg explains the phenomenon this way:[1]
The myth that satellites remain in orbit because they have "escaped Earth's gravity" is perpetuated further (and falsely) by almost universal misuse of the word "zero gravity" to describe the free-falling conditions aboard orbiting space vehicles. Of course, this isn't true; gravity still exists in space. It keeps satellites from flying straight off into interstellar emptiness. What's missing is "weight", the resistance of gravitational attraction by an anchored structure or a counterforce. Satellites stay in space because of their tremendous horizontal speed, which allows them — while being unavoidably pulled toward Earth by gravity — to fall "over the horizon." The ground's curved withdrawal along the Earth's round surface offsets the satellites' fall toward the ground. Speed, not position or lack of gravity, keeps satellites in orbit around the earth.
Originally posted by Phage
reply to post by Wrabbit2000
Nah. Geothermal drills have hit magma a few times. Nothing much happened.
I imagine that eventually, someone will be stupid enough to finally dig down to the first layer beneath the crust and create Earth's very own man-made Mt. Olympus.
But there is a project to go further.
www.iodp.org...edit on 3/9/2013 by Phage because: (no reason given)