Welcome to the Forum for InventorSpot.com, the most popular invention related website in the world. Read our welcome message.
Moderators: Michelle, Scrupulous, Roger Brown, citizen
6 posts
• Page 1 of 1
Physics Questions
by Levi Porter » Fri Feb 26, 2010 3:36 am
-
Levi Porter - Brown Belt
- Posts: 891
- Joined: Mon Oct 15, 2007 2:37 am
Does anyone know how many directions an object can simultaneously spin or rotate?
It would seem that a vacuum would be required to reduce the affects of gravity.
Is there anyway an object could travel in opposite directions at the same time?
It would seem that a vacuum would be required to reduce the affects of gravity.
Is there anyway an object could travel in opposite directions at the same time?
Re: Physics Questions
by apapage » Sun Feb 28, 2010 9:11 pm
- apapage
- Green Belt
- Posts: 214
- Joined: Tue Jun 23, 2009 6:30 pm
- Location: NYC
1) The vector of spin in an 3D coordinate system can be in all three direction.
2) Vacuum will reduce the drag on a falling object. For the most part, gravity is constant at 9.8 m/s^2. A falling object will accelerate at the rate of gravity (G) except for the resistance from Drag. Without drag, the falling object will accelerate at G. Note, drag is negligible at low speeds.
3) In Newtonian Physics, I believe that it is impossible for an object to move in opposite directions. As objects move at close to the speed of light, objects behave differently. I am not an expert at modern physics, so I wouldn't rule out the possibility.
2) Vacuum will reduce the drag on a falling object. For the most part, gravity is constant at 9.8 m/s^2. A falling object will accelerate at the rate of gravity (G) except for the resistance from Drag. Without drag, the falling object will accelerate at G. Note, drag is negligible at low speeds.
3) In Newtonian Physics, I believe that it is impossible for an object to move in opposite directions. As objects move at close to the speed of light, objects behave differently. I am not an expert at modern physics, so I wouldn't rule out the possibility.
A Papageorgiou
http://www.patentlawforinventors.com
http://www.patentlawforinventors.com
Re: Physics Questions
by Levi Porter » Wed Mar 10, 2010 2:02 am
-
Levi Porter - Brown Belt
- Posts: 891
- Joined: Mon Oct 15, 2007 2:37 am
Thanks apapage
I am no physics expert either. This subject does apply to a function or aspect of an invention of mine. I appreciate the input. The short term practicality of this particular aspect for immediate usefulness is not likely. Probably more of a fun science experiment that could lead to new discoveries.
I'm not familiar with 3d coordinate systems, or maybe it's that I lean towards layman definitions. I guess what I was getting at, is that if you take a tire off of a car, pull the rim out, put a globe inside of it so that it is stable, spin the globe on a west to east axis, then roll the tire forward on the south to north axis, the globe would be moving in 2 circular directions simultaneously. Then if you count the rotation, and orbit of the Earth around the sun, the globe would have 2 more directions it would be moving. I know that our solar system and galaxy are also in motion; don't think they have determined if they are on circular paths or not. So my guess, is that there is somewhere around an infinite possibility of directions that an object could spin or rotate.
...., You could use the tire example, then instead of rolling the tire forward, attach prongs similar to the way the globe spins between 2 prongs or a shaft, then spin the tire in the opposite direction of the spinning globe. There is the opposite directions at once, not directly....or maybe.
If the first globe was able to spin in opposite directions directly, then I think you encounter what you were talking about the speed of light and strange behavior. That reminds me of a term I thought I might have been one of the first to call Universal Inertia. That's another topic, but it has similarities to Einsteins Cosmological Constant Theory.
Back to the vacuum, a satellite in orbit around Earth should have less drag. The moon should be less than that, and maybe the best anti resistant available space would be to have a spinning object slowly moving through space, avoiding planetary or galactic bodies that posses strong gravitational forces.
On Earth, I wonder how much the spinning globe inside of a tire would slow down when the tire spins the globe in the opposite direction. The weight and speed differences between the tire, globe, and spin probably factor in.
Hmmm
I am no physics expert either. This subject does apply to a function or aspect of an invention of mine. I appreciate the input. The short term practicality of this particular aspect for immediate usefulness is not likely. Probably more of a fun science experiment that could lead to new discoveries.
I'm not familiar with 3d coordinate systems, or maybe it's that I lean towards layman definitions. I guess what I was getting at, is that if you take a tire off of a car, pull the rim out, put a globe inside of it so that it is stable, spin the globe on a west to east axis, then roll the tire forward on the south to north axis, the globe would be moving in 2 circular directions simultaneously. Then if you count the rotation, and orbit of the Earth around the sun, the globe would have 2 more directions it would be moving. I know that our solar system and galaxy are also in motion; don't think they have determined if they are on circular paths or not. So my guess, is that there is somewhere around an infinite possibility of directions that an object could spin or rotate.
...., You could use the tire example, then instead of rolling the tire forward, attach prongs similar to the way the globe spins between 2 prongs or a shaft, then spin the tire in the opposite direction of the spinning globe. There is the opposite directions at once, not directly....or maybe.If the first globe was able to spin in opposite directions directly, then I think you encounter what you were talking about the speed of light and strange behavior. That reminds me of a term I thought I might have been one of the first to call Universal Inertia. That's another topic, but it has similarities to Einsteins Cosmological Constant Theory.
Back to the vacuum, a satellite in orbit around Earth should have less drag. The moon should be less than that, and maybe the best anti resistant available space would be to have a spinning object slowly moving through space, avoiding planetary or galactic bodies that posses strong gravitational forces.
On Earth, I wonder how much the spinning globe inside of a tire would slow down when the tire spins the globe in the opposite direction. The weight and speed differences between the tire, globe, and spin probably factor in.
Hmmm
Re: Physics Questions
by JoeWaisman » Wed Mar 10, 2010 2:23 pm
-
JoeWaisman - Green Belt
- Posts: 234
- Joined: Tue Dec 29, 2009 4:10 pm
Levi, some of the things you are mentioning fall under two separate categories. 1) Rotation involves an object turning in one direction or another (often about its center of mass). 2) Translation involves repositioning an object.
So if a ballerina spins around on her toe she is rotating. When she runs and leaps she is translating.
An object that is accelerated from zero spin to some amount of spin on the earths surface does in fact also cause the earth to spin in the other direction, however because the earths mass is so much greater that only one spin change is measurable.
Objects can spin about an axis, the axis can spin about its own axis (I think of this as a wobble effect) and the axis can spin top over bottom. So Appapage was right 3 directions of spin are possible. Earth for example spins about its axis causing day and night. Its axis is not straight up and down however in relation to its orbit with the sun. The axis also rotates meaning that the northern and southern hemispheres are sometimes closer to the sun, which of course results in seasons.
So if a ballerina spins around on her toe she is rotating. When she runs and leaps she is translating.
An object that is accelerated from zero spin to some amount of spin on the earths surface does in fact also cause the earth to spin in the other direction, however because the earths mass is so much greater that only one spin change is measurable.
Objects can spin about an axis, the axis can spin about its own axis (I think of this as a wobble effect) and the axis can spin top over bottom. So Appapage was right 3 directions of spin are possible. Earth for example spins about its axis causing day and night. Its axis is not straight up and down however in relation to its orbit with the sun. The axis also rotates meaning that the northern and southern hemispheres are sometimes closer to the sun, which of course results in seasons.
___________________________________________
"The horse is here to stay but the automobile is only a novelty, a fad."
Fun links:
*http://www.scribd.com/doc/441708/Bad-Predictions-About-Great-Inventions
"The horse is here to stay but the automobile is only a novelty, a fad."
Fun links:
*http://www.scribd.com/doc/441708/Bad-Predictions-About-Great-Inventions
Re: Physics Questions
by Scrupulous » Wed Mar 10, 2010 5:10 pm
-
Scrupulous - Black Belt
- Posts: 2414
- Joined: Sun Jan 21, 2007 7:32 pm
- Location: United States
Levi, does this have anything to do with Planet X?
Re: Physics Questions
by Sage48 » Fri Jun 04, 2010 5:29 am
- Sage48
- White Belt
- Posts: 2
- Joined: Thu Jun 03, 2010 5:33 am
At any one point in time, there is exactly one axis of rotation. That axis can change over time, but the instantaneous rotation is always around a single axis.
________
:::semo:::
________
:::semo:::
6 posts
• Page 1 of 1