Topic: testings Einstein's theory under extreme conditions
zzzippy56's photo
Wed 03/11/15 09:16 PM


What about G forces that a jet fighter pilot experiences? Such can even black a pilot out & it really feels like a massive push from above as to a pull


What about G-strings? Or the G-spot?.....offtopic


Oh I like where this is going.... yer silly bash..

mightymoe's photo
Wed 03/11/15 09:20 PM




but it also seems that speed will cancel the effect in certain situations...



What do you mean?


the faster a body in space flys by another body, the less gravity affects it...

if a meteor is traveling at 40 miles per second, and another the same mass is traveling at 100 miles per hour, the slower one would change course more than the faster one...

thats why they don't worry about fast moving comets/asteroids hitting the earth, it would have to be on a direct path towards us to hit, where a slow moving one can get caught in our gravity easier...

Not speed. Compound gravitational fields. Think about it like a magnetic field, move another magnet near the field and the field lines (illustrated) warp and interfere. Same thing applies to gravity. It doesn't matter how fast a body ismoving if it's on course to collide, it collides. Shumaker-Levy 9 is a prime example. Jupiter's enormous gravitational pull didn't negate the speed, it changed the speed slowing as it changed course and reaching well above terminal velocity as it broke up before impact. Comets and asteroids aren't easy to break. Oak is extremely hard but opposing forces can cause even the hardest woods to break. Go back to the bowling ball on the blanket, but put three pool balls, a basketball, some baseballs and tennis balls all with their own 'cone' and roll a marble around at 20mph and 20 fps. It'll take the 20mph marble longerto collide with one of the larger bodies and it will travel farther but there's no engine inside it. Gravity is exerting more force on the faster marble, just in a different direction. On the blanket both marbles would hit a larger body, but the blanket would have to be larger than earth for the 20mph marble to orbit on its elliptical course.


if you fired 2 bullets from 2 different guns at the same trajectory, one had more gunpowder to make the bullet faster, which bullet would hit the ground first?

germanchoclate1981's photo
Thu 03/12/15 01:49 AM
First of all, great topic. To answer your question, if fired horizontally or any angle other than 90, the one with less powder will land first. If fired perfectly straight (not recommended) into the air at 90 degrees one will hit before the other but they will hit at the same speed. It's called terminal velocity. Sounds crazy, I know, but if one has slightly less powder than the other but enough to fire the same payload, grain weight, they will be going the same speed when they come down.
For the comets/asteroids, if they weigh the same, have close enough mineral make up, rotation, trajectory, they will be going the same speed. Just as bullets from the same maker with the same load, round shape and caliber fired from the same barrel will travel at the same speed.

metalwing's photo
Sat 03/14/15 11:19 PM





but it also seems that speed will cancel the effect in certain situations...



What do you mean?


the faster a body in space flys by another body, the less gravity affects it...

if a meteor is traveling at 40 miles per second, and another the same mass is traveling at 100 miles per hour, the slower one would change course more than the faster one...

thats why they don't worry about fast moving comets/asteroids hitting the earth, it would have to be on a direct path towards us to hit, where a slow moving one can get caught in our gravity easier...

Not speed. Compound gravitational fields. Think about it like a magnetic field, move another magnet near the field and the field lines (illustrated) warp and interfere. Same thing applies to gravity. It doesn't matter how fast a body ismoving if it's on course to collide, it collides. Shumaker-Levy 9 is a prime example. Jupiter's enormous gravitational pull didn't negate the speed, it changed the speed slowing as it changed course and reaching well above terminal velocity as it broke up before impact. Comets and asteroids aren't easy to break. Oak is extremely hard but opposing forces can cause even the hardest woods to break. Go back to the bowling ball on the blanket, but put three pool balls, a basketball, some baseballs and tennis balls all with their own 'cone' and roll a marble around at 20mph and 20 fps. It'll take the 20mph marble longerto collide with one of the larger bodies and it will travel farther but there's no engine inside it. Gravity is exerting more force on the faster marble, just in a different direction. On the blanket both marbles would hit a larger body, but the blanket would have to be larger than earth for the 20mph marble to orbit on its elliptical course.


if you fired 2 bullets from 2 different guns at the same trajectory, one had more gunpowder to make the bullet faster, which bullet would hit the ground first?


If fired horizontally, they would hit the ground at the same time. The faster bullet would, however, land farther away.

mightymoe's photo
Sat 03/14/15 11:21 PM






but it also seems that speed will cancel the effect in certain situations...



What do you mean?


the faster a body in space flys by another body, the less gravity affects it...

if a meteor is traveling at 40 miles per second, and another the same mass is traveling at 100 miles per hour, the slower one would change course more than the faster one...

thats why they don't worry about fast moving comets/asteroids hitting the earth, it would have to be on a direct path towards us to hit, where a slow moving one can get caught in our gravity easier...

Not speed. Compound gravitational fields. Think about it like a magnetic field, move another magnet near the field and the field lines (illustrated) warp and interfere. Same thing applies to gravity. It doesn't matter how fast a body ismoving if it's on course to collide, it collides. Shumaker-Levy 9 is a prime example. Jupiter's enormous gravitational pull didn't negate the speed, it changed the speed slowing as it changed course and reaching well above terminal velocity as it broke up before impact. Comets and asteroids aren't easy to break. Oak is extremely hard but opposing forces can cause even the hardest woods to break. Go back to the bowling ball on the blanket, but put three pool balls, a basketball, some baseballs and tennis balls all with their own 'cone' and roll a marble around at 20mph and 20 fps. It'll take the 20mph marble longerto collide with one of the larger bodies and it will travel farther but there's no engine inside it. Gravity is exerting more force on the faster marble, just in a different direction. On the blanket both marbles would hit a larger body, but the blanket would have to be larger than earth for the 20mph marble to orbit on its elliptical course.


if you fired 2 bullets from 2 different guns at the same trajectory, one had more gunpowder to make the bullet faster, which bullet would hit the ground first?


If fired horizontally, they would hit the ground at the same time. The faster bullet would, however, land farther away.


metalwing wins!

metalwing's photo
Sat 03/14/15 11:35 PM







but it also seems that speed will cancel the effect in certain situations...



What do you mean?


the faster a body in space flys by another body, the less gravity affects it...

if a meteor is traveling at 40 miles per second, and another the same mass is traveling at 100 miles per hour, the slower one would change course more than the faster one...

thats why they don't worry about fast moving comets/asteroids hitting the earth, it would have to be on a direct path towards us to hit, where a slow moving one can get caught in our gravity easier...

Not speed. Compound gravitational fields. Think about it like a magnetic field, move another magnet near the field and the field lines (illustrated) warp and interfere. Same thing applies to gravity. It doesn't matter how fast a body ismoving if it's on course to collide, it collides. Shumaker-Levy 9 is a prime example. Jupiter's enormous gravitational pull didn't negate the speed, it changed the speed slowing as it changed course and reaching well above terminal velocity as it broke up before impact. Comets and asteroids aren't easy to break. Oak is extremely hard but opposing forces can cause even the hardest woods to break. Go back to the bowling ball on the blanket, but put three pool balls, a basketball, some baseballs and tennis balls all with their own 'cone' and roll a marble around at 20mph and 20 fps. It'll take the 20mph marble longerto collide with one of the larger bodies and it will travel farther but there's no engine inside it. Gravity is exerting more force on the faster marble, just in a different direction. On the blanket both marbles would hit a larger body, but the blanket would have to be larger than earth for the 20mph marble to orbit on its elliptical course.


if you fired 2 bullets from 2 different guns at the same trajectory, one had more gunpowder to make the bullet faster, which bullet would hit the ground first?


If fired horizontally, they would hit the ground at the same time. The faster bullet would, however, land farther away.


metalwing wins!


And if you held a third bullet in your hand and dropped it at the same time as the two guns were fired (from the same height), all three would hit the ground at the same time. The vertical gravity vector is independent of the horizontal vectors.

no photo
Mon 03/16/15 01:28 PM
There is no gravity. The universe sucks. Hahahah!

ivonn's photo
Sat 07/11/15 01:55 PM
I can't even couch in words how I adore Einstein. :O

no photo
Sat 07/11/15 02:01 PM
Reading this thread made me think of Angry Birds...oops

no photo
Sat 07/11/15 02:06 PM
A very interesting read indeed.


tulip2633's photo
Sat 07/11/15 07:44 PM
They should try to apply Einstein's theory to the discovered Keplar system or binary star system. Then search for other systems with more than two stars and keep applying it. That's pretty extreme conditions.

Or find something that orbits the Sun in different directions and apply the theory to that.

Or they can just get me a pepperoni pizza.

rofl

Lukinfolov's photo
Mon 07/13/15 11:10 AM
Indeed !!

Extremely large masses bend light that come close to it and we can see the lensing of light around massive stars. This is called gravitational lensing.

This is an evidence that gravity bends space.

mightymoe's photo
Mon 07/13/15 05:29 PM

Indeed !!

Extremely large masses bend light that come close to it and we can see the lensing of light around massive stars. This is called gravitational lensing.

This is an evidence that gravity bends space.


ummm... wouldn't that be evidence of gravity bending light?

tulip2633's photo
Mon 07/13/15 06:33 PM
Gravitational lensing seems synonymous to a mirage.

Lukinfolov's photo
Mon 07/13/15 09:54 PM

Gravitational lensing seems synonymous to a mirage.


Not exactly...mirage happens due to total internal reflection of light when the angle of incidence exceeds the critical angle, on the other hand, gravitational lensing is due to effect of extreme gravity on space, bending it towards itself...thus giving a perception of bending of light.

Lukinfolov's photo
Mon 07/13/15 09:59 PM


Indeed !!

Extremely large masses bend light that come close to it and we can see the lensing of light around massive stars. This is called gravitational lensing.

This is an evidence that gravity bends space.


ummm... wouldn't that be evidence of gravity bending light?


Bending of light is a result of warped space around extremely dense stars. We perceive light being bent which is a consequence of bent space. Let me know if my analysis is flawed.

metalwing's photo
Mon 07/13/15 10:15 PM



Indeed !!

Extremely large masses bend light that come close to it and we can see the lensing of light around massive stars. This is called gravitational lensing.

This is an evidence that gravity bends space.


ummm... wouldn't that be evidence of gravity bending light?


Bending of light is a result of warped space around extremely dense stars. We perceive light being bent which is a consequence of bent space. Let me know if my analysis is flawed.


Light is bent because space/time is warped by gravity. It doesn't need a dense star to be bent. Einstein's theory was proven by the light bent around our Sun.

In any case, gravitational lensing has little to do with gravity waves. The "extreme" events of which they speak is an event such as two black holes merging together. As the singularities got near and increased their orbital velocity the resulting increase of frequency of gravitational waves would (hopefully) be detected by LIGO and announce themselves by the increasing tone of the detector.

Two supermassive black holes merging as is predicted when Andromeda collides with the Milky Way would give the strongest signal.

tulip2633's photo
Tue 07/14/15 02:08 AM
Understanding gravitational lensing seems to serve the purpose of being able to deconstruct the captured image whereas the gravity waves seem to be the key to applying Einstein's theory.

They must have proved his theory in deep space already and just waiting for a gravitational tsunami to arrive; like you said from a black hole collision.

Maybe they need to boost the receiver. There must be magnificent collisions out there somewhere.

Don't they have a collider? They must be colliding things at different levels and learning about the nature of it; detecting patterns.

It's all quite fascinating and challenging to wrap your mind around. I am more inclined to believe there is a fifth force out there as opposed to the theory of dark matter; an overarching force; or source. Gravity seems like an effect not a cause.

I am probably not making any sense at this point. laugh


mightymoe's photo
Tue 07/14/15 11:15 AM




Indeed !!

Extremely large masses bend light that come close to it and we can see the lensing of light around massive stars. This is called gravitational lensing.

This is an evidence that gravity bends space.


ummm... wouldn't that be evidence of gravity bending light?


Bending of light is a result of warped space around extremely dense stars. We perceive light being bent which is a consequence of bent space. Let me know if my analysis is flawed.


Light is bent because space/time is warped by gravity. It doesn't need a dense star to be bent. Einstein's theory was proven by the light bent around our Sun.

In any case, gravitational lensing has little to do with gravity waves. The "extreme" events of which they speak is an event such as two black holes merging together. As the singularities got near and increased their orbital velocity the resulting increase of frequency of gravitational waves would (hopefully) be detected by LIGO and announce themselves by the increasing tone of the detector.

Two supermassive black holes merging as is predicted when Andromeda collides with the Milky Way would give the strongest signal.



What looks like a shooting target is actually an image of nested rings of X-ray light centered on an erupting black hole. On June 15, NASA’s Swift satellite detected the start of a new outburst from V404 Cygni, where a black hole and a sun-like star orbit each other. Since then, astronomers around the world have been monitoring the ongoing light show.

Rings of X-ray light centered on V404 Cygni, a binary system containing an erupting black hole (dot at center), were imaged by the X-ray Telescope aboard NASA’s Swift satellite from June 30 to July 4. A narrow gap splits the middle ring in two. Color indicates the energy of the X-rays, with red representing the lowest (800 to 1,500 electron volts, eV), green for medium (1,500 to 2,500 eV), and the most energetic (2,500 to 5,000 eV) shown in blue. For comparison, visible light has energies ranging from about 2 to 3 eV. The dark lines running diagonally through the image are artifacts of the imaging system.

mightymoe's photo
Tue 07/14/15 11:25 AM

Understanding gravitational lensing seems to serve the purpose of being able to deconstruct the captured image whereas the gravity waves seem to be the key to applying Einstein's theory.

They must have proved his theory in deep space already and just waiting for a gravitational tsunami to arrive; like you said from a black hole collision.

Maybe they need to boost the receiver. There must be magnificent collisions out there somewhere.

Don't they have a collider? They must be colliding things at different levels and learning about the nature of it; detecting patterns.

It's all quite fascinating and challenging to wrap your mind around. I am more inclined to believe there is a fifth force out there as opposed to the theory of dark matter; an overarching force; or source. Gravity seems like an effect not a cause.

I am probably not making any sense at this point. laugh



http://www.youtube.com/watch?v=g2C-OgcBJYc

the universe is pretty big... hard to see see any collision until after it happens... but they did get lucky with jupiter/shoemaker levi comet...