Can a Balloon Float Inside a Hollow, Air-Filled Space Elevator?

In summary, filling a hollow cylindrical space elevator with 1 ATM of air and using balloons to float to the top would pose several problems. These include the mass of the air, its compressibility, and the need for a massive amount of energy to maintain the necessary conditions. Additionally, the high pressure and low temperature would make the air solid, making it difficult to float and adding to the already massive amount of mass needed for construction.
  • #1
udtsith
54
1
What would the problems be with having a hollow cylindrical space elevator made of carbon (e.g. recent benzene linked chains) and instead of having the payload climb to the top you filled the inside with 1 ATM of air and floated to the top via balloon?
 
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  • #2
udtsith said:
What would the problems be with having a hollow cylindrical space elevator made of carbon (e.g. recent benzene linked chains) and instead of having the payload climb to the top you filled the inside with 1 ATM of air and floated to the top via balloon?

There are two problems:
1. air is not massless
2. air is compressible (see http://en.wikipedia.org/wiki/Barometric_formula )
 
  • #3
Friction? The Earth and space elevator rotate so as a climber ascends it must gain speed and will put sideways forces on the tower/tether.
 
  • #4
udtsith said:
What would the problems be with having a hollow cylindrical space elevator made of carbon (e.g. recent benzene linked chains) and instead of having the payload climb to the top you filled the inside with 1 ATM of air and floated to the top via balloon?
As with the atmosphere outside, there would be a gradient of pressure as you go up. To have 1ATM at the top, you would need squiilions of ATM at the bottom. At best, it would be a bomb waiting to go off and at worst, it would require a fantastic input of energy to get those conditions.
 
  • #5
The high pressure and low temperature would make air solid (everywhere apart from a tiny region close to the top). Hard to float up there.
Not to mention the huge amount of mass to build a tower of solid air.
 

Related to Can a Balloon Float Inside a Hollow, Air-Filled Space Elevator?

1. What is a "New Type of Space Elevator"?

A new type of space elevator refers to a proposed concept for a transportation system that would allow objects and people to travel from Earth's surface to space without the use of rockets or shuttles.

2. How does a new type of space elevator work?

The new type of space elevator would consist of a long, incredibly strong cable tethered to the Earth's surface and extending into space. A counterweight would be placed in space to balance the weight of the cable. Electric motors would then be used to move the elevator up and down the cable.

3. What are the potential benefits of a new type of space elevator?

A space elevator could greatly reduce the cost and time associated with space travel. It could also make space travel more accessible to a wider range of people and open up new opportunities for space exploration and research.

4. What are the challenges of building a new type of space elevator?

One of the main challenges is developing a material strong enough to withstand the tension and weight of the cable. Another challenge is ensuring the safety and stability of the elevator, especially during extreme weather events.

5. Is a new type of space elevator feasible with current technology?

While the concept of a space elevator is scientifically feasible, it is still in the theoretical stage and would require significant advancements in technology and materials before it could be built and used successfully.

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