• E1 | Seeking beyond the rocket equation - the prospect of space elevators

  • 2021/01/31
  • 再生時間： 1 時間 2 分
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E1 | Seeking beyond the rocket equation - the prospect of space elevators

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  • This episode has at its core the implications of Tsiolkovsky’s rocket equation, which figures the hard limits of rocket-based payload transportation to Earth’s orbit. Furthermore, rockets are expensive, up to failure, risky and carry too little payload. Making rockets more efficient reminds analogically of Henry Ford’s classic: “If I had asked people what they wanted, they would have said faster horses”. One of the non-rocket approaches to get a fast, cheap, safe and repeatable transport to orbit is the Space Elevator concept which we are going to cover in the episode with our guest, the amazing Josh Bernard-Cooper, a University of St Andrews Physics and Philosophy student, International Space University alumni and Research Assistant at the International Space Elevator Consortium. CONTENT 00:00:00 Intro 00:02:00 The basic concept of a space elevator 00:12:00 Google X, NASA 00:16:00 Motivation to build elevators 00:24:00 Design concepts 00:32:00 Speed of the climber and radiation 00:34:00 Main Challenges 00:37:00 Space debris and elevator collaps 00:38:00 Best place on Earth to install the elevator 00:40:00 Beta test the elevator on Moon and Mars? 00:41:00 Optimal Altitude for beta best 00:44:00 How many people are involved? 00:47:00 Non-rocket launcher ideas 00:49:00 Fundings, Prizes, Sponsors 00:52:00 Elevator in 10 years? 00:57:00 Realists vs Futurists 00:59:00 Why a lead blanket is useful in the Elevator
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This episode has at its core the implications of Tsiolkovsky’s rocket equation, which figures the hard limits of rocket-based payload transportation to Earth’s orbit. Furthermore, rockets are expensive, up to failure, risky and carry too little payload. Making rockets more efficient reminds analogically of Henry Ford’s classic: “If I had asked people what they wanted, they would have said faster horses”. One of the non-rocket approaches to get a fast, cheap, safe and repeatable transport to orbit is the Space Elevator concept which we are going to cover in the episode with our guest, the amazing Josh Bernard-Cooper, a University of St Andrews Physics and Philosophy student, International Space University alumni and Research Assistant at the International Space Elevator Consortium. CONTENT 00:00:00 Intro 00:02:00 The basic concept of a space elevator 00:12:00 Google X, NASA 00:16:00 Motivation to build elevators 00:24:00 Design concepts 00:32:00 Speed of the climber and radiation 00:34:00 Main Challenges 00:37:00 Space debris and elevator collaps 00:38:00 Best place on Earth to install the elevator 00:40:00 Beta test the elevator on Moon and Mars? 00:41:00 Optimal Altitude for beta best 00:44:00 How many people are involved? 00:47:00 Non-rocket launcher ideas 00:49:00 Fundings, Prizes, Sponsors 00:52:00 Elevator in 10 years? 00:57:00 Realists vs Futurists 00:59:00 Why a lead blanket is useful in the Elevator
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