Humans can already build a space elevator — study

Professor George Drew from York University discusses the feasibility of building a space elevator, as detailed in a study published in ACTA Astronautica. The study suggests that current materials and technologies are sufficient for constructing a profitable space elevator. The proposed design involves two parallel tethers, which would enhance stability and efficiency. The elevator would operate by balancing opposing forces, reducing the impact of Earth's rotation. This innovative approach could significantly cut costs and fuel usage for space transportation.

What does Professor George Drew suggest about the current state of technology for building a space elevator?

• Only theoretical models exist.

• It will take another century to develop.

• We have the necessary materials and technology.

• It is not possible with current technology.

What is the proposed design for the space elevator according to the study?

• A large space station in low Earth orbit.

• A series of interconnected satellites.

• A single rigid tether reaching deep space.

• Two flexible tethers in parallel.

How would the space elevator save fuel and costs?

• By eliminating the need for rockets entirely.

• By using solar power for propulsion.

• By transporting payloads via elevator instead of rockets.

• By reducing the weight of payloads.

What is the purpose of using two parallel tethers in the space elevator design?

• To allow for more passengers.

• To reduce the cost of construction.

• To stabilize the elevator and manage opposing forces.

• To increase the speed of the elevator.

How do the opposing forces in the space elevator design help in its operation?

• They reduce the energy consumption of the elevator.

• They increase the speed of the elevator.

• They prevent the cable from moving due to Earth's rotation.

• They allow for more payload capacity.