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Could one theoretically use the expansion of the universe to travel through it? At least in one direction?

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2

$begingroup$

Could one theoretically use the expansion of the universe to travel through it? At least In one direction?

That’s it that’s my question.
I’m not a physicist but I do get ideas.
I also wonder if one could theoretically ride the magnetic fields in the universe and if space is like water could it be possible to “slap it and ride the wave”?

cosmology space-expansion rocket-science

share|cite|improve this question

edited 1 hour ago

Qmechanic♦

109k122041260

asked 3 hours ago

Lorna De LaineLorna De Laine

111

New contributor

Lorna De Laine is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  For longer trips, see Travelling at lights speed of light as universe expanding.
  $endgroup$
  – Keith McClary
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  the expansion is the exact opposite of traveling, since everything is getting further away.
  $endgroup$
  – JEB
  1 hour ago
  

  
  
  
  

add a comment | 

2

$begingroup$

Could one theoretically use the expansion of the universe to travel through it? At least In one direction?

That’s it that’s my question.
I’m not a physicist but I do get ideas.
I also wonder if one could theoretically ride the magnetic fields in the universe and if space is like water could it be possible to “slap it and ride the wave”?

cosmology space-expansion rocket-science

share|cite|improve this question

edited 1 hour ago

Qmechanic♦

109k122041260

asked 3 hours ago

Lorna De LaineLorna De Laine

111

New contributor

Lorna De Laine is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  For longer trips, see Travelling at lights speed of light as universe expanding.
  $endgroup$
  – Keith McClary
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  the expansion is the exact opposite of traveling, since everything is getting further away.
  $endgroup$
  – JEB
  1 hour ago
  

  
  
  
  

add a comment | 

$begingroup$

Could one theoretically use the expansion of the universe to travel through it? At least In one direction?

That’s it that’s my question.
I’m not a physicist but I do get ideas.
I also wonder if one could theoretically ride the magnetic fields in the universe and if space is like water could it be possible to “slap it and ride the wave”?

cosmology space-expansion rocket-science

share|cite|improve this question

edited 1 hour ago

Qmechanic♦

109k122041260

asked 3 hours ago

Lorna De LaineLorna De Laine

111

New contributor

Lorna De Laine is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

share|cite|improve this question

edited 1 hour ago

Qmechanic♦

109k122041260

asked 3 hours ago

Lorna De LaineLorna De Laine

111

New contributor

Lorna De Laine is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|cite|improve this question

edited 1 hour ago

Qmechanic♦

109k122041260

asked 3 hours ago

Lorna De LaineLorna De Laine

111

New contributor

Lorna De Laine is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 1 hour ago

Qmechanic♦

109k122041260

edited 1 hour ago

Qmechanic♦

109k122041260

asked 3 hours ago

Lorna De LaineLorna De Laine

111

New contributor

Lorna De Laine is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 3 hours ago

Lorna De LaineLorna De Laine

111

2 Answers
2

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4

$begingroup$

The expansion of the universe is happening in all points in our surroundings, all three dimensions at a time. All points in three dimensional space were at the beginning of the universe's one point ( classically, ignoring quantum mechanics) in the beginning of time.

Think of the surface of an expanding balloon, where all points are going away from each other, an ant on the surface would see no specific direction of expansion in its two dimensional universe on the surface. It would be traveling whether it wanted to or not.The expansion on the balloon is not "going" anyplace, for the ant to use it as a transport mechanism. It is more complicated in the four dimensional space time but similar.

There are forces that keep the atoms and molecules and planetary systems from expanding with the space time expansion, but that is another story.

share|cite|improve this answer

edited 1 hour ago

answered 2 hours ago

anna vanna v

164k8156461

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  I think this answer covers it. You can't travel in one direction because the expansion is happening in all directions.
  $endgroup$
  – Jay
  2 hours ago
  

  
  
  
  

add a comment | 

1

$begingroup$

1) Yes, you are traveling the universe right now due to it's expansion, at a relative speed of 67.4 km/s per megaparsec, which is quite fast. Unfortunately there is no easy way you can change direction or speed, so you can just enjoy the ride.

2) You can utilize magnetic fields to change your speed, but magnetic fields found in interstellar space are not strong enough to be of much use. Magnetic fields are currently used to slowly rotate satellites (or more precisely to unload control moment gyroscopes).

3) "Slap and ride" is not feasible. There is nothing you can easily slap. Space is just too empty. Yes, even in empty space there is dark matter, neutrinos - but they don't like to interact with anything.

share|cite|improve this answer

answered 2 hours ago

BarsMonsterBarsMonster

27252363

$endgroup$

add a comment | 

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4

$begingroup$

The expansion of the universe is happening in all points in our surroundings, all three dimensions at a time. All points in three dimensional space were at the beginning of the universe's one point ( classically, ignoring quantum mechanics) in the beginning of time.

Think of the surface of an expanding balloon, where all points are going away from each other, an ant on the surface would see no specific direction of expansion in its two dimensional universe on the surface. It would be traveling whether it wanted to or not.The expansion on the balloon is not "going" anyplace, for the ant to use it as a transport mechanism. It is more complicated in the four dimensional space time but similar.

There are forces that keep the atoms and molecules and planetary systems from expanding with the space time expansion, but that is another story.

share|cite|improve this answer

edited 1 hour ago

answered 2 hours ago

anna vanna v

164k8156461

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  I think this answer covers it. You can't travel in one direction because the expansion is happening in all directions.
  $endgroup$
  – Jay
  2 hours ago
  

  
  
  
  

add a comment | 

4

$begingroup$

The expansion of the universe is happening in all points in our surroundings, all three dimensions at a time. All points in three dimensional space were at the beginning of the universe's one point ( classically, ignoring quantum mechanics) in the beginning of time.

Think of the surface of an expanding balloon, where all points are going away from each other, an ant on the surface would see no specific direction of expansion in its two dimensional universe on the surface. It would be traveling whether it wanted to or not.The expansion on the balloon is not "going" anyplace, for the ant to use it as a transport mechanism. It is more complicated in the four dimensional space time but similar.

There are forces that keep the atoms and molecules and planetary systems from expanding with the space time expansion, but that is another story.

share|cite|improve this answer

edited 1 hour ago

answered 2 hours ago

anna vanna v

164k8156461

$endgroup$

• 
  
  
  

  
  

  
  
  
  
  
  

  
  $begingroup$
  I think this answer covers it. You can't travel in one direction because the expansion is happening in all directions.
  $endgroup$
  – Jay
  2 hours ago
  

  
  
  
  

add a comment | 

$begingroup$

The expansion of the universe is happening in all points in our surroundings, all three dimensions at a time. All points in three dimensional space were at the beginning of the universe's one point ( classically, ignoring quantum mechanics) in the beginning of time.

Think of the surface of an expanding balloon, where all points are going away from each other, an ant on the surface would see no specific direction of expansion in its two dimensional universe on the surface. It would be traveling whether it wanted to or not.The expansion on the balloon is not "going" anyplace, for the ant to use it as a transport mechanism. It is more complicated in the four dimensional space time but similar.

There are forces that keep the atoms and molecules and planetary systems from expanding with the space time expansion, but that is another story.

share|cite|improve this answer

edited 1 hour ago

answered 2 hours ago

anna vanna v

164k8156461

$endgroup$

share|cite|improve this answer

edited 1 hour ago

answered 2 hours ago

anna vanna v

164k8156461

answered 2 hours ago

anna vanna v

164k8156461

answered 2 hours ago

anna vanna v

164k8156461

1

$begingroup$

1) Yes, you are traveling the universe right now due to it's expansion, at a relative speed of 67.4 km/s per megaparsec, which is quite fast. Unfortunately there is no easy way you can change direction or speed, so you can just enjoy the ride.

2) You can utilize magnetic fields to change your speed, but magnetic fields found in interstellar space are not strong enough to be of much use. Magnetic fields are currently used to slowly rotate satellites (or more precisely to unload control moment gyroscopes).

3) "Slap and ride" is not feasible. There is nothing you can easily slap. Space is just too empty. Yes, even in empty space there is dark matter, neutrinos - but they don't like to interact with anything.

share|cite|improve this answer

answered 2 hours ago

BarsMonsterBarsMonster

27252363

$endgroup$

add a comment | 

1

$begingroup$

1) Yes, you are traveling the universe right now due to it's expansion, at a relative speed of 67.4 km/s per megaparsec, which is quite fast. Unfortunately there is no easy way you can change direction or speed, so you can just enjoy the ride.

2) You can utilize magnetic fields to change your speed, but magnetic fields found in interstellar space are not strong enough to be of much use. Magnetic fields are currently used to slowly rotate satellites (or more precisely to unload control moment gyroscopes).

3) "Slap and ride" is not feasible. There is nothing you can easily slap. Space is just too empty. Yes, even in empty space there is dark matter, neutrinos - but they don't like to interact with anything.

share|cite|improve this answer

answered 2 hours ago

BarsMonsterBarsMonster

27252363

$endgroup$

add a comment | 

$begingroup$

1) Yes, you are traveling the universe right now due to it's expansion, at a relative speed of 67.4 km/s per megaparsec, which is quite fast. Unfortunately there is no easy way you can change direction or speed, so you can just enjoy the ride.

2) You can utilize magnetic fields to change your speed, but magnetic fields found in interstellar space are not strong enough to be of much use. Magnetic fields are currently used to slowly rotate satellites (or more precisely to unload control moment gyroscopes).

3) "Slap and ride" is not feasible. There is nothing you can easily slap. Space is just too empty. Yes, even in empty space there is dark matter, neutrinos - but they don't like to interact with anything.

share|cite|improve this answer

answered 2 hours ago

BarsMonsterBarsMonster

27252363

$endgroup$

share|cite|improve this answer

answered 2 hours ago

BarsMonsterBarsMonster

27252363

answered 2 hours ago

BarsMonsterBarsMonster

27252363

answered 2 hours ago

BarsMonsterBarsMonster

27252363