Joined: Jan 30, 2006 Posts: 111 Location: San Jose
Posted: Tue Mar 07, 2006 2:37 pm Post subject:
flipper81 wrote:
I could be wrong, but I think the astronauts do actually experience gravity while in the "weightless" state. It's just the gravity they experience is much lower than the gravitational field on earth. As to there being different types of gravity, I think there is only a gravitational force. The magnitude of that force may be greater or smaller in different regions. This is because F = ma, where a = the acceleration due to gravity. Even the gravitational field on the earth is not constant and is slightly different in different places on earth.
They do experience it... its what holds the shuttle in orbit... and the planets around our sun... and our sun around the galaxie, the galaxies to the center of the universe... ALL AT THE SAME TIME
Even in deep space where there is no matter. _________________ QuantumArtist. Proud high school graduate. Part Science, part artist, all bullsh*t
I'm not going to think you're right till you give me good reason to change my mind!
(Your education is not a good reason)
Joined: Jan 13, 2006 Posts: 95 Location: Grants Pass, Oregon
Posted: Wed Mar 08, 2006 7:00 am Post subject: free-falling
At a given orbital radius, let's say you have an excessive speed, so you shoot on by the sun in a somewhat deflected line. If you have not enough speed, you free-fall in, during which you feel weightless. If you are in a certain range, you will fall just as fast as you go out of the way, and this is a stable orbit in which you feel weightless.
Joined: Jan 30, 2006 Posts: 111 Location: San Jose
Posted: Wed Mar 08, 2006 12:36 pm Post subject: Re: free-falling
Albersawa wrote:
At a given orbital radius, let's say you have an excessive speed, so you shoot on by the sun in a somewhat deflected line. If you have not enough speed, you free-fall in, during which you feel weightless. If you are in a certain range, you will fall just as fast as you go out of the way, and this is a stable orbit in which you feel weightless.
Interestingly enough however, is that you're trajectory is still bent. Gravity. _________________ QuantumArtist. Proud high school graduate. Part Science, part artist, all bullsh*t
I'm not going to think you're right till you give me good reason to change my mind!
(Your education is not a good reason)
Joined: Jan 13, 2006 Posts: 95 Location: Grants Pass, Oregon
Posted: Wed Mar 08, 2006 3:04 pm Post subject:
In the vacuum a feather and a connonball accelerate at the same rate. Here on Earth I saw this videod in a vacuum tube dropping! When you are free to be accelerated this balances off your weight, fly or hippo.
Joined: Jan 30, 2006 Posts: 111 Location: San Jose
Posted: Fri Mar 10, 2006 3:46 pm Post subject: Re: scales and measure
Albersawa wrote:
Who is holding the scale? If it moves with you, you weigh nothing.
But you are moving... arent you? What seems weightless is still being effected by gravity, even in a vacuum... where there is no matter or descernable carrier particle.
Thats my point. Gravity doesnt have one. Its a manifestation of a more fundimental energy source. I believe it effects matter, at its most fundimental level (whatever that is), hence the reason all matter is effected by it.
Thats where the power of an energy which is independant of matter lies. You see, ultimately, there has to be an energy like this... the verb in all that exists in life. Its not something you can pour in a cup. Its not something to grab. Its there though... making matter DO. Its action itself.
What if gravity was a manifestation of an energy which existed thus?
I contend it does... and it makes pretty good sense if you really consider it. _________________ QuantumArtist. Proud high school graduate. Part Science, part artist, all bullsh*t
I'm not going to think you're right till you give me good reason to change my mind!
(Your education is not a good reason)
Joined: Jan 30, 2006 Posts: 111 Location: San Jose
Posted: Sat Mar 11, 2006 2:52 am Post subject:
Well, I know you're saying something similar, but the rest of science doesnt seem ready for this concept. Slapping neutrals together and getting anything but zero is really hard for them to get. _________________ QuantumArtist. Proud high school graduate. Part Science, part artist, all bullsh*t
I'm not going to think you're right till you give me good reason to change my mind!
(Your education is not a good reason)
Joined: Jan 13, 2006 Posts: 95 Location: Grants Pass, Oregon
Posted: Sat Mar 11, 2006 5:48 am Post subject:
In gravitational freefall of whatever trajectory what matters is that you are accelerating. We define "accelerate" as any change in the velocity vector. In an orbit circle your velocity is always changing at right angles to what it is. Now you can see Einstein's "equivalence principle", the bedrock of his theory where we agree that gravitation cannot be distinguished from acceleration.
Joined: Jan 30, 2006 Posts: 111 Location: San Jose
Posted: Sat Mar 11, 2006 6:00 pm Post subject:
Its that acceleration that brings me to believe that the neutral attraction concept works for gravity also. You see... zero is constant, as is the gravitational acceleration.
I wonder sometimes if that acceleration isnt litterally the attraction factor of the 0 power I've presented in this theory. That if we werent litterally polarly powered in an opposing direction with such force as to break its most immediate influence, or perfectly in an orbit in the trajectory you discribe, we will quickly be influenced by it.
In fact, when applied to the concept of a limited universe, it makes some sense as well. You see, even if you have a bullet in space which travels fast enough to break away from earth and its orbit... gravity will still be altering its trajection...
and that alteration would be at the acceleration rate, toward the closest and strongest body of gravity... while toward everything else at lesser degrees. Ultimately, that bullet will never reach the "end" of the universe because even in very far out space, gravity is altering, and bending its trajectory.
At least thats the concept as I see it. I'm not entirely sure I agree with a limited universe anymore. Having embrassed action and a fundimental matter which is infinetly small... has made my universe a whole lot bigger. _________________ QuantumArtist. Proud high school graduate. Part Science, part artist, all bullsh*t
I'm not going to think you're right till you give me good reason to change my mind!
(Your education is not a good reason)
now as we all know the faster an object moves the more mass it has well since earth is in constant motion and all matter on earth therefore is also in motion does this mean that a hydrogen atom on earth and a hydrogen atom at rest in deep space has a different mass?
Joined: Jan 30, 2006 Posts: 111 Location: San Jose
Posted: Sun Mar 12, 2006 3:05 am Post subject:
I've never heard that. In fact, that doesnt make sense at all.
Light would be the heaviest stuff in existance. I dont buy it. _________________ QuantumArtist. Proud high school graduate. Part Science, part artist, all bullsh*t
I'm not going to think you're right till you give me good reason to change my mind!
(Your education is not a good reason)
Joined: Jan 13, 2006 Posts: 95 Location: Grants Pass, Oregon
Posted: Sun Mar 12, 2006 5:46 am Post subject:
Apparent mass changes with velocity. Rest mass is the only useful term. Look at a particle going down a long linear accelerator tube. Every so many feet we kick it through another ten thousand volts of radio frequency waves tuned so the particles "surf" on the leading edge. We figure so much energy dumped into the particle at each stage but see it asymptotically approaching 'c'. What can we say when more and more energy input gets us less and less increase in velocity and we never get to 'c'?.....
now as we all know the faster an object moves the more mass it has well since earth is in constant motion and all matter on earth therefore is also in motion does this mean that a hydrogen atom on earth and a hydrogen atom at rest in deep space has a different mass?
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
Forum FAQ
Search
Usergroups
Profile
Log in to check your private messages
Log in
