UJRefugees.net

CentralTexasCrude wrote: ↑Thu Mar 11, 2021 10:38 pm

Animal wrote: ↑Thu Mar 11, 2021 9:42 pm

necronomous wrote: ↑Thu Mar 11, 2021 9:32 pm

Animal wrote: ↑Thu Mar 11, 2021 9:01 pm

necronomous wrote: ↑Thu Mar 11, 2021 8:57 pm

Animal wrote: ↑Thu Mar 11, 2021 7:45 pm

Yeah, but i'm talking about just an astronaut in their space walking suit. How much fuel would a small hand held rocket booster require to get enough thrust in space to slow an astronaut from 17,000 mph to the speed of the earth's rotation? I would assume you would want to match the earth's rotation if the point is to float down to earth without burning up.

You know, like a leaf blower.

If the purpose is to get the people to the station, they aren't putting more fuel on to get them back when there is a way to do it without.

Well, i'm just saying that almost burning up to death on re-entry along with the shuttle that blew up doing it, if a few gallons of fuel might lead to a different approach, then that's all i'm sayin'.

Your plan means they leave all the vehicles in space just to send people back alone.

its not a plan. i'm just asking if its possible. if you had to, could you get a man from the space station to the earth without him burning up?

It's called a "Space Elevator"- A lot of technical problems to overcome first- 1st proposed by a Russian scientist back in the 1890's- Google

A space elevator is a proposed type of planet-to-space transportation system.[1] The main component would be a cable (also called a tether) anchored to the surface and extending into space. The design would permit vehicles to travel along the cable from a planetary surface, such as the Earth's, directly into space or orbit, without the use of large rockets. An Earth-based space elevator would consist of a cable with one end attached to the surface near the equator and the other end in space beyond geostationary orbit (35,786 km altitude). The competing forces of gravity, which is stronger at the lower end of the cable, and the outward/upward centrifugal force, which is stronger at the upper end, would result in the cable being held up and kept stationary over a single position on Earth. With the tether deployed, climbers could repeatedly climb the tether to space by mechanical means, releasing their cargo to orbit. Climbers could also descend the tether to return cargo to the surface from orbit.[2]
The concept of a tower reaching geosynchronous orbit was first published in 1895 by Konstantin Tsiolkovsky.[3] His proposal was for a free-standing tower reaching from the surface of Earth to the height of geostationary orbit. Like all buildings, Tsiolkovsky's structure would be under compression, supporting its weight from below. Since 1959, most ideas for space elevators have focused on purely tensile structures, with the weight of the system held up from above by centrifugal forces. In the tensile concepts, a space tether reaches from a large mass (the counterweight) beyond geostationary orbit to the ground. This structure is held in tension between Earth and the counterweight like an upside-down plumb bob. The cable thickness is adjusted based on tension; it has its maximum at a geostationary orbit and the minimum on the ground.

Available materials are not strong enough to make a space elevator practical.

megman wrote: ↑Thu Mar 11, 2021 10:15 pm

Animal wrote: ↑Thu Mar 11, 2021 9:48 pm

megman wrote: ↑Thu Mar 11, 2021 9:44 pm

Animal wrote: ↑Thu Mar 11, 2021 9:42 pm

necronomous wrote: ↑Thu Mar 11, 2021 9:32 pm

Animal wrote: ↑Thu Mar 11, 2021 9:01 pm

Well, i'm just saying that almost burning up to death on re-entry along with the shuttle that blew up doing it, if a few gallons of fuel might lead to a different approach, then that's all i'm sayin'.

Your plan means they leave all the vehicles in space just to send people back alone.

its not a plan. i'm just asking if its possible. if you had to, could you get a man from the space station to the earth without him burning up?

You watched the movie "Gravity" didn't you....

was that with jodie foster? man, i barely remember that movie. seems like there was a scene where they let the air out of something to propel them for some reason. and then i seem to remember a scene where she woke up after crashing to earth. did they get back without burning up something?

Something like that. I'd have to rewatch it myself to clarify the details.

megman wrote: ↑Thu Mar 11, 2021 10:43 pm

CentralTexasCrude wrote: ↑Thu Mar 11, 2021 10:38 pm

Animal wrote: ↑Thu Mar 11, 2021 9:42 pm

necronomous wrote: ↑Thu Mar 11, 2021 9:32 pm

Animal wrote: ↑Thu Mar 11, 2021 9:01 pm

necronomous wrote: ↑Thu Mar 11, 2021 8:57 pm

If the purpose is to get the people to the station, they aren't putting more fuel on to get them back when there is a way to do it without.

Well, i'm just saying that almost burning up to death on re-entry along with the shuttle that blew up doing it, if a few gallons of fuel might lead to a different approach, then that's all i'm sayin'.

Your plan means they leave all the vehicles in space just to send people back alone.

its not a plan. i'm just asking if its possible. if you had to, could you get a man from the space station to the earth without him burning up?

It's called a "Space Elevator"- A lot of technical problems to overcome first- 1st proposed by a Russian scientist back in the 1890's- Google

A space elevator is a proposed type of planet-to-space transportation system.[1] The main component would be a cable (also called a tether) anchored to the surface and extending into space. The design would permit vehicles to travel along the cable from a planetary surface, such as the Earth's, directly into space or orbit, without the use of large rockets. An Earth-based space elevator would consist of a cable with one end attached to the surface near the equator and the other end in space beyond geostationary orbit (35,786 km altitude). The competing forces of gravity, which is stronger at the lower end of the cable, and the outward/upward centrifugal force, which is stronger at the upper end, would result in the cable being held up and kept stationary over a single position on Earth. With the tether deployed, climbers could repeatedly climb the tether to space by mechanical means, releasing their cargo to orbit. Climbers could also descend the tether to return cargo to the surface from orbit.[2]
The concept of a tower reaching geosynchronous orbit was first published in 1895 by Konstantin Tsiolkovsky.[3] His proposal was for a free-standing tower reaching from the surface of Earth to the height of geostationary orbit. Like all buildings, Tsiolkovsky's structure would be under compression, supporting its weight from below. Since 1959, most ideas for space elevators have focused on purely tensile structures, with the weight of the system held up from above by centrifugal forces. In the tensile concepts, a space tether reaches from a large mass (the counterweight) beyond geostationary orbit to the ground. This structure is held in tension between Earth and the counterweight like an upside-down plumb bob. The cable thickness is adjusted based on tension; it has its maximum at a geostationary orbit and the minimum on the ground.

Available materials are not strong enough to make a space elevator practical.

It's called Kevlar/carbon fiber. The problem is they can't make it very quickly.

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:14 am

megman wrote: ↑Thu Mar 11, 2021 10:43 pm

CentralTexasCrude wrote: ↑Thu Mar 11, 2021 10:38 pm

Animal wrote: ↑Thu Mar 11, 2021 9:42 pm

necronomous wrote: ↑Thu Mar 11, 2021 9:32 pm

Animal wrote: ↑Thu Mar 11, 2021 9:01 pm

Well, i'm just saying that almost burning up to death on re-entry along with the shuttle that blew up doing it, if a few gallons of fuel might lead to a different approach, then that's all i'm sayin'.

Your plan means they leave all the vehicles in space just to send people back alone.

its not a plan. i'm just asking if its possible. if you had to, could you get a man from the space station to the earth without him burning up?

It's called a "Space Elevator"- A lot of technical problems to overcome first- 1st proposed by a Russian scientist back in the 1890's- Google

A space elevator is a proposed type of planet-to-space transportation system.[1] The main component would be a cable (also called a tether) anchored to the surface and extending into space. The design would permit vehicles to travel along the cable from a planetary surface, such as the Earth's, directly into space or orbit, without the use of large rockets. An Earth-based space elevator would consist of a cable with one end attached to the surface near the equator and the other end in space beyond geostationary orbit (35,786 km altitude). The competing forces of gravity, which is stronger at the lower end of the cable, and the outward/upward centrifugal force, which is stronger at the upper end, would result in the cable being held up and kept stationary over a single position on Earth. With the tether deployed, climbers could repeatedly climb the tether to space by mechanical means, releasing their cargo to orbit. Climbers could also descend the tether to return cargo to the surface from orbit.[2]
The concept of a tower reaching geosynchronous orbit was first published in 1895 by Konstantin Tsiolkovsky.[3] His proposal was for a free-standing tower reaching from the surface of Earth to the height of geostationary orbit. Like all buildings, Tsiolkovsky's structure would be under compression, supporting its weight from below. Since 1959, most ideas for space elevators have focused on purely tensile structures, with the weight of the system held up from above by centrifugal forces. In the tensile concepts, a space tether reaches from a large mass (the counterweight) beyond geostationary orbit to the ground. This structure is held in tension between Earth and the counterweight like an upside-down plumb bob. The cable thickness is adjusted based on tension; it has its maximum at a geostationary orbit and the minimum on the ground.

Available materials are not strong enough to make a space elevator practical.

It's called Kevlar/carbon fiber. The problem is they can't make it very quickly.

I said "technical problems to overcome" at the beginning and the Google article says it's not practical with available materials. It's just been known in scientific circles for a long time that it is feasible.

Animal wrote: ↑Thu Mar 11, 2021 10:48 pm if that drawing is anything close to being "to scale" then that rope is around 30,000 + miles long. Whenever I present a problem at work to a crew or some foremen and someone comes up with a solution that starts off like that, i don't waste a lot of time picking it apart and just move on to another one.

megman wrote: ↑Fri Mar 12, 2021 12:22 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:14 am

megman wrote: ↑Thu Mar 11, 2021 10:43 pm

CentralTexasCrude wrote: ↑Thu Mar 11, 2021 10:38 pm

Animal wrote: ↑Thu Mar 11, 2021 9:42 pm

necronomous wrote: ↑Thu Mar 11, 2021 9:32 pm
Your plan means they leave all the vehicles in space just to send people back alone.

its not a plan. i'm just asking if its possible. if you had to, could you get a man from the space station to the earth without him burning up?

It's called a "Space Elevator"- A lot of technical problems to overcome first- 1st proposed by a Russian scientist back in the 1890's- Google

A space elevator is a proposed type of planet-to-space transportation system.[1] The main component would be a cable (also called a tether) anchored to the surface and extending into space. The design would permit vehicles to travel along the cable from a planetary surface, such as the Earth's, directly into space or orbit, without the use of large rockets. An Earth-based space elevator would consist of a cable with one end attached to the surface near the equator and the other end in space beyond geostationary orbit (35,786 km altitude). The competing forces of gravity, which is stronger at the lower end of the cable, and the outward/upward centrifugal force, which is stronger at the upper end, would result in the cable being held up and kept stationary over a single position on Earth. With the tether deployed, climbers could repeatedly climb the tether to space by mechanical means, releasing their cargo to orbit. Climbers could also descend the tether to return cargo to the surface from orbit.[2]
The concept of a tower reaching geosynchronous orbit was first published in 1895 by Konstantin Tsiolkovsky.[3] His proposal was for a free-standing tower reaching from the surface of Earth to the height of geostationary orbit. Like all buildings, Tsiolkovsky's structure would be under compression, supporting its weight from below. Since 1959, most ideas for space elevators have focused on purely tensile structures, with the weight of the system held up from above by centrifugal forces. In the tensile concepts, a space tether reaches from a large mass (the counterweight) beyond geostationary orbit to the ground. This structure is held in tension between Earth and the counterweight like an upside-down plumb bob. The cable thickness is adjusted based on tension; it has its maximum at a geostationary orbit and the minimum on the ground.

Available materials are not strong enough to make a space elevator practical.

It's called Kevlar/carbon fiber. The problem is they can't make it very quickly.

I said "technical problems to overcome" at the beginning and the Google article says it's not practical with available materials. It's just been known in scientific circles for a long time that it is feasible.

No. It said "Available materials are not strong enough to make a space elevator practical."

Kevlar/carbon is strong enough.

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:31 am

megman wrote: ↑Fri Mar 12, 2021 12:22 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:14 am

megman wrote: ↑Thu Mar 11, 2021 10:43 pm

CentralTexasCrude wrote: ↑Thu Mar 11, 2021 10:38 pm

Animal wrote: ↑Thu Mar 11, 2021 9:42 pm

its not a plan. i'm just asking if its possible. if you had to, could you get a man from the space station to the earth without him burning up?

It's called a "Space Elevator"- A lot of technical problems to overcome first- 1st proposed by a Russian scientist back in the 1890's- Google

A space elevator is a proposed type of planet-to-space transportation system.[1] The main component would be a cable (also called a tether) anchored to the surface and extending into space. The design would permit vehicles to travel along the cable from a planetary surface, such as the Earth's, directly into space or orbit, without the use of large rockets. An Earth-based space elevator would consist of a cable with one end attached to the surface near the equator and the other end in space beyond geostationary orbit (35,786 km altitude). The competing forces of gravity, which is stronger at the lower end of the cable, and the outward/upward centrifugal force, which is stronger at the upper end, would result in the cable being held up and kept stationary over a single position on Earth. With the tether deployed, climbers could repeatedly climb the tether to space by mechanical means, releasing their cargo to orbit. Climbers could also descend the tether to return cargo to the surface from orbit.[2]
The concept of a tower reaching geosynchronous orbit was first published in 1895 by Konstantin Tsiolkovsky.[3] His proposal was for a free-standing tower reaching from the surface of Earth to the height of geostationary orbit. Like all buildings, Tsiolkovsky's structure would be under compression, supporting its weight from below. Since 1959, most ideas for space elevators have focused on purely tensile structures, with the weight of the system held up from above by centrifugal forces. In the tensile concepts, a space tether reaches from a large mass (the counterweight) beyond geostationary orbit to the ground. This structure is held in tension between Earth and the counterweight like an upside-down plumb bob. The cable thickness is adjusted based on tension; it has its maximum at a geostationary orbit and the minimum on the ground.

Available materials are not strong enough to make a space elevator practical.

It's called Kevlar/carbon fiber. The problem is they can't make it very quickly.

I said "technical problems to overcome" at the beginning and the Google article says it's not practical with available materials. It's just been known in scientific circles for a long time that it is feasible.

No. It said "Available materials are not strong enough to make a space elevator practical."

Kevlar/carbon is strong enough.

Could be. Don't know enough about the technical difficulties to say. I'm not even sure how you would get a continuous 20,000 mile Kevlar/ carbon line from point A to point B. Would you tie one end down and take off in a rocket as it feeds out? Or go up into orbit and drop it down to Earth and let it drag around everywhere until you snatch it?

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:31 am

megman wrote: ↑Fri Mar 12, 2021 12:22 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:14 am

megman wrote: ↑Thu Mar 11, 2021 10:43 pm

CentralTexasCrude wrote: ↑Thu Mar 11, 2021 10:38 pm

Animal wrote: ↑Thu Mar 11, 2021 9:42 pm

its not a plan. i'm just asking if its possible. if you had to, could you get a man from the space station to the earth without him burning up?

It's called a "Space Elevator"- A lot of technical problems to overcome first- 1st proposed by a Russian scientist back in the 1890's- Google

A space elevator is a proposed type of planet-to-space transportation system.[1] The main component would be a cable (also called a tether) anchored to the surface and extending into space. The design would permit vehicles to travel along the cable from a planetary surface, such as the Earth's, directly into space or orbit, without the use of large rockets. An Earth-based space elevator would consist of a cable with one end attached to the surface near the equator and the other end in space beyond geostationary orbit (35,786 km altitude). The competing forces of gravity, which is stronger at the lower end of the cable, and the outward/upward centrifugal force, which is stronger at the upper end, would result in the cable being held up and kept stationary over a single position on Earth. With the tether deployed, climbers could repeatedly climb the tether to space by mechanical means, releasing their cargo to orbit. Climbers could also descend the tether to return cargo to the surface from orbit.[2]
The concept of a tower reaching geosynchronous orbit was first published in 1895 by Konstantin Tsiolkovsky.[3] His proposal was for a free-standing tower reaching from the surface of Earth to the height of geostationary orbit. Like all buildings, Tsiolkovsky's structure would be under compression, supporting its weight from below. Since 1959, most ideas for space elevators have focused on purely tensile structures, with the weight of the system held up from above by centrifugal forces. In the tensile concepts, a space tether reaches from a large mass (the counterweight) beyond geostationary orbit to the ground. This structure is held in tension between Earth and the counterweight like an upside-down plumb bob. The cable thickness is adjusted based on tension; it has its maximum at a geostationary orbit and the minimum on the ground.

Available materials are not strong enough to make a space elevator practical.

It's called Kevlar/carbon fiber. The problem is they can't make it very quickly.

I said "technical problems to overcome" at the beginning and the Google article says it's not practical with available materials. It's just been known in scientific circles for a long time that it is feasible.

No. It said "Available materials are not strong enough to make a space elevator practical."

Kevlar/carbon is strong enough.

Could be. Don't know enough about the technical difficulties to say. I'm not even sure how you would get a continuous 20,000 mile Kevlar/ carbon line from point A to point B. Would you tie one end down and take off in a rocket as it feeds out? Or go up into orbit and drop it down to Earth and let it drag around everywhere until you snatch it?

Animal wrote: ↑Thu Mar 11, 2021 10:48 pm if that drawing is anything close to being "to scale" then that rope is around 30,000 + miles long. Whenever I present a problem at work to a crew or some foremen and someone comes up with a solution that starts off like that, i don't waste a lot of time picking it apart and just move on to another one.

megman wrote: ↑Fri Mar 12, 2021 12:44 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:31 am

megman wrote: ↑Fri Mar 12, 2021 12:22 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:14 am

megman wrote: ↑Thu Mar 11, 2021 10:43 pm

CentralTexasCrude wrote: ↑Thu Mar 11, 2021 10:38 pm
It's called a "Space Elevator"- A lot of technical problems to overcome first- 1st proposed by a Russian scientist back in the 1890's- Google

A space elevator is a proposed type of planet-to-space transportation system.[1] The main component would be a cable (also called a tether) anchored to the surface and extending into space. The design would permit vehicles to travel along the cable from a planetary surface, such as the Earth's, directly into space or orbit, without the use of large rockets. An Earth-based space elevator would consist of a cable with one end attached to the surface near the equator and the other end in space beyond geostationary orbit (35,786 km altitude). The competing forces of gravity, which is stronger at the lower end of the cable, and the outward/upward centrifugal force, which is stronger at the upper end, would result in the cable being held up and kept stationary over a single position on Earth. With the tether deployed, climbers could repeatedly climb the tether to space by mechanical means, releasing their cargo to orbit. Climbers could also descend the tether to return cargo to the surface from orbit.[2]
The concept of a tower reaching geosynchronous orbit was first published in 1895 by Konstantin Tsiolkovsky.[3] His proposal was for a free-standing tower reaching from the surface of Earth to the height of geostationary orbit. Like all buildings, Tsiolkovsky's structure would be under compression, supporting its weight from below. Since 1959, most ideas for space elevators have focused on purely tensile structures, with the weight of the system held up from above by centrifugal forces. In the tensile concepts, a space tether reaches from a large mass (the counterweight) beyond geostationary orbit to the ground. This structure is held in tension between Earth and the counterweight like an upside-down plumb bob. The cable thickness is adjusted based on tension; it has its maximum at a geostationary orbit and the minimum on the ground.

Available materials are not strong enough to make a space elevator practical.

It's called Kevlar/carbon fiber. The problem is they can't make it very quickly.

I said "technical problems to overcome" at the beginning and the Google article says it's not practical with available materials. It's just been known in scientific circles for a long time that it is feasible.

No. It said "Available materials are not strong enough to make a space elevator practical."

Kevlar/carbon is strong enough.

Could be. Don't know enough about the technical difficulties to say. I'm not even sure how you would get a continuous 20,000 mile Kevlar/ carbon line from point A to point B. Would you tie one end down and take off in a rocket as it feeds out? Or go up into orbit and drop it down to Earth and let it drag around everywhere until you snatch it?

Kevlar/carbon nanotubes are the key but it takes forever to grow them.

And you don't need 20,000 miles for a geo-synchronous orbit. You only need 400.

Antknot wrote: ↑Fri Mar 12, 2021 12:45 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:31 am

megman wrote: ↑Fri Mar 12, 2021 12:22 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:14 am

megman wrote: ↑Thu Mar 11, 2021 10:43 pm

CentralTexasCrude wrote: ↑Thu Mar 11, 2021 10:38 pm
It's called a "Space Elevator"- A lot of technical problems to overcome first- 1st proposed by a Russian scientist back in the 1890's- Google

A space elevator is a proposed type of planet-to-space transportation system.[1] The main component would be a cable (also called a tether) anchored to the surface and extending into space. The design would permit vehicles to travel along the cable from a planetary surface, such as the Earth's, directly into space or orbit, without the use of large rockets. An Earth-based space elevator would consist of a cable with one end attached to the surface near the equator and the other end in space beyond geostationary orbit (35,786 km altitude). The competing forces of gravity, which is stronger at the lower end of the cable, and the outward/upward centrifugal force, which is stronger at the upper end, would result in the cable being held up and kept stationary over a single position on Earth. With the tether deployed, climbers could repeatedly climb the tether to space by mechanical means, releasing their cargo to orbit. Climbers could also descend the tether to return cargo to the surface from orbit.[2]
The concept of a tower reaching geosynchronous orbit was first published in 1895 by Konstantin Tsiolkovsky.[3] His proposal was for a free-standing tower reaching from the surface of Earth to the height of geostationary orbit. Like all buildings, Tsiolkovsky's structure would be under compression, supporting its weight from below. Since 1959, most ideas for space elevators have focused on purely tensile structures, with the weight of the system held up from above by centrifugal forces. In the tensile concepts, a space tether reaches from a large mass (the counterweight) beyond geostationary orbit to the ground. This structure is held in tension between Earth and the counterweight like an upside-down plumb bob. The cable thickness is adjusted based on tension; it has its maximum at a geostationary orbit and the minimum on the ground.

Available materials are not strong enough to make a space elevator practical.

It's called Kevlar/carbon fiber. The problem is they can't make it very quickly.

I said "technical problems to overcome" at the beginning and the Google article says it's not practical with available materials. It's just been known in scientific circles for a long time that it is feasible.

No. It said "Available materials are not strong enough to make a space elevator practical."

Kevlar/carbon is strong enough.

Could be. Don't know enough about the technical difficulties to say. I'm not even sure how you would get a continuous 20,000 mile Kevlar/ carbon line from point A to point B. Would you tie one end down and take off in a rocket as it feeds out? Or go up into orbit and drop it down to Earth and let it drag around everywhere until you snatch it?

You'd do it like they run the individual wires in a cable for a bridge. Run one wire, use it as a guide to run another then use them for the third. Keep going till you have enough to make a cable.

necronomous wrote: ↑Fri Mar 12, 2021 12:58 am

Animal wrote: ↑Thu Mar 11, 2021 10:48 pm if that drawing is anything close to being "to scale" then that rope is around 30,000 + miles long. Whenever I present a problem at work to a crew or some foremen and someone comes up with a solution that starts off like that, i don't waste a lot of time picking it apart and just move on to another one.

That's what the paragraph said. 35k ish.

Antknot wrote: ↑Fri Mar 12, 2021 12:45 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:31 am

megman wrote: ↑Fri Mar 12, 2021 12:22 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:14 am

megman wrote: ↑Thu Mar 11, 2021 10:43 pm

CentralTexasCrude wrote: ↑Thu Mar 11, 2021 10:38 pm
It's called a "Space Elevator"- A lot of technical problems to overcome first- 1st proposed by a Russian scientist back in the 1890's- Google

A space elevator is a proposed type of planet-to-space transportation system.[1] The main component would be a cable (also called a tether) anchored to the surface and extending into space. The design would permit vehicles to travel along the cable from a planetary surface, such as the Earth's, directly into space or orbit, without the use of large rockets. An Earth-based space elevator would consist of a cable with one end attached to the surface near the equator and the other end in space beyond geostationary orbit (35,786 km altitude). The competing forces of gravity, which is stronger at the lower end of the cable, and the outward/upward centrifugal force, which is stronger at the upper end, would result in the cable being held up and kept stationary over a single position on Earth. With the tether deployed, climbers could repeatedly climb the tether to space by mechanical means, releasing their cargo to orbit. Climbers could also descend the tether to return cargo to the surface from orbit.[2]
The concept of a tower reaching geosynchronous orbit was first published in 1895 by Konstantin Tsiolkovsky.[3] His proposal was for a free-standing tower reaching from the surface of Earth to the height of geostationary orbit. Like all buildings, Tsiolkovsky's structure would be under compression, supporting its weight from below. Since 1959, most ideas for space elevators have focused on purely tensile structures, with the weight of the system held up from above by centrifugal forces. In the tensile concepts, a space tether reaches from a large mass (the counterweight) beyond geostationary orbit to the ground. This structure is held in tension between Earth and the counterweight like an upside-down plumb bob. The cable thickness is adjusted based on tension; it has its maximum at a geostationary orbit and the minimum on the ground.

Available materials are not strong enough to make a space elevator practical.

It's called Kevlar/carbon fiber. The problem is they can't make it very quickly.

I said "technical problems to overcome" at the beginning and the Google article says it's not practical with available materials. It's just been known in scientific circles for a long time that it is feasible.

No. It said "Available materials are not strong enough to make a space elevator practical."

Kevlar/carbon is strong enough.

Could be. Don't know enough about the technical difficulties to say. I'm not even sure how you would get a continuous 20,000 mile Kevlar/ carbon line from point A to point B. Would you tie one end down and take off in a rocket as it feeds out? Or go up into orbit and drop it down to Earth and let it drag around everywhere until you snatch it?

You'd do it like they run the individual wires in a cable for a bridge. Run one wire, use it as a guide to run another then use them for the third. Keep going till you have enough to make a cable.

CaptQuint wrote: ↑Fri Mar 12, 2021 12:57 am Would you idiots break the fucking quote chain

peterosehaircut wrote: ↑Fri Mar 12, 2021 1:11 am

Antknot wrote: ↑Fri Mar 12, 2021 12:45 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:31 am

megman wrote: ↑Fri Mar 12, 2021 12:22 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:14 am

megman wrote: ↑Thu Mar 11, 2021 10:43 pm
It's called Kevlar/carbon fiber. The problem is they can't make it very quickly.

I said "technical problems to overcome" at the beginning and the Google article says it's not practical with available materials. It's just been known in scientific circles for a long time that it is feasible.

No. It said "Available materials are not strong enough to make a space elevator practical."

Kevlar/carbon is strong enough.

Could be. Don't know enough about the technical difficulties to say. I'm not even sure how you would get a continuous 20,000 mile Kevlar/ carbon line from point A to point B. Would you tie one end down and take off in a rocket as it feeds out? Or go up into orbit and drop it down to Earth and let it drag around everywhere until you snatch it?

You'd do it like they run the individual wires in a cable for a bridge. Run one wire, use it as a guide to run another then use them for the third. Keep going till you have enough to make a cable.

CaptQuint wrote: ↑Fri Mar 12, 2021 12:57 am Would you idiots break the fucking quote chain

This. ^^^^^^

megman wrote: ↑Fri Mar 12, 2021 1:13 am

peterosehaircut wrote: ↑Fri Mar 12, 2021 1:11 am

Antknot wrote: ↑Fri Mar 12, 2021 12:45 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:31 am

megman wrote: ↑Fri Mar 12, 2021 12:22 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:14 am
I said "technical problems to overcome" at the beginning and the Google article says it's not practical with available materials. It's just been known in scientific circles for a long time that it is feasible.

No. It said "Available materials are not strong enough to make a space elevator practical."

Kevlar/carbon is strong enough.

Could be. Don't know enough about the technical difficulties to say. I'm not even sure how you would get a continuous 20,000 mile Kevlar/ carbon line from point A to point B. Would you tie one end down and take off in a rocket as it feeds out? Or go up into orbit and drop it down to Earth and let it drag around everywhere until you snatch it?

You'd do it like they run the individual wires in a cable for a bridge. Run one wire, use it as a guide to run another then use them for the third. Keep going till you have enough to make a cable.

CaptQuint wrote: ↑Fri Mar 12, 2021 12:57 am Would you idiots break the fucking quote chain

This. ^^^^^^

QUOTE MONSTER!!!!

peterosehaircut wrote: ↑Fri Mar 12, 2021 1:11 am

Antknot wrote: ↑Fri Mar 12, 2021 12:45 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:31 am

megman wrote: ↑Fri Mar 12, 2021 12:22 am

CentralTexasCrude wrote: ↑Fri Mar 12, 2021 12:14 am

megman wrote: ↑Thu Mar 11, 2021 10:43 pm
It's called Kevlar/carbon fiber. The problem is they can't make it very quickly.

I said "technical problems to overcome" at the beginning and the Google article says it's not practical with available materials. It's just been known in scientific circles for a long time that it is feasible.

No. It said "Available materials are not strong enough to make a space elevator practical."

Kevlar/carbon is strong enough.

Could be. Don't know enough about the technical difficulties to say. I'm not even sure how you would get a continuous 20,000 mile Kevlar/ carbon line from point A to point B. Would you tie one end down and take off in a rocket as it feeds out? Or go up into orbit and drop it down to Earth and let it drag around everywhere until you snatch it?

You'd do it like they run the individual wires in a cable for a bridge. Run one wire, use it as a guide to run another then use them for the third. Keep going till you have enough to make a cable.

CaptQuint wrote: ↑Fri Mar 12, 2021 12:57 am Would you idiots break the fucking quote chain

This. ^^^^^^

Animal wrote: ↑Fri Mar 12, 2021 6:05 pm what in the fuck?