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   alt.comp.os.windows-10      Steaming pile of horseshit Windows 10      197,590 messages   

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   Message 196,116 of 197,590   
   Paul to Physics Perspective   
   Re: Why It's "IMPOSSIBLE" Humans Landed    
   10 Dec 25 00:57:58   
   
   [continued from previous message]   
      
   do that anymore. They're bound by politics, by   
      
    01:04:56   
    bureaucracy, by   
   contractors spread across every congressional district. Every decision is a   
   political decision. Every component is built in a specific state to satisfy   
   a specific senator. So NASA has become less efficient, less innovative,   
   less capable than they were in the 1,960 seconds. Not because the engineers   
   are worse, the engineers are great, but because the system has oified. It's   
   become sclerotic. And that's frustrating because it means we're not living   
   up to our potential. We achieved incredible   
      
    01:05:34   
    things in the 1,960   
   seconds. And now with vastly better technology, we're moving slower. But   
   here's the good news. Private space companies are changing the game. SpaceX,   
   Blue Origin, others, they're innovating. They're reducing costs. They're   
   making space access routine. And this might be what finally gets us back to   
   the moon. Not government programs, but commercial interest, tourism, mining,   
   research. If there's money to be made on the moon, companies will find a   
   way to get there.   
      
    01:06:10   
    Now, let me talk about something that really   
   demonstrates how we've changed. Risk tolerance. In the 1,960 seconds, we   
   accepted enormous risks. The astronauts knew they might die. Some did die. The   
   Apollo 1 fire killed three astronauts, but the program continued. We accepted   
   the losses and pushed forward. Today, we can't do that. After the Challenger   
   disaster in 1986, the shuttle program was grounded for three years. After   
   the Colombia disaster in 2003, it was grounded for two years. Every failure   
   triggers massive   
      
    01:06:50   
    investigations, safety reviews, redesigns,   
   and that's good in many ways. We should value human life. We should minimize   
   risks. But it also makes bold exploration much harder because exploration is   
   inherently risky. There's no way to eliminate all danger. The astronauts of   
   the 1,962 seconds understood this. They were test pilots. They were used   
   to risk. They accepted it as part of the job. And that mindset allowed   
   rapid progress. Today's astronauts are still brave, but the institutions   
   around them are riskaverse.   
      
    01:07:31   
    Every mission has to be as safe   
   as possible. Every contingency has to be planned for, and that's expensive   
   and timeconuming. So, we've traded speed for safety. And again, that's not   
   necessarily bad, but it does explain why progress has been slower. Now, let   
   me talk about something else that's changed. public interest. In the 1,960   
   seconds, the entire nation was focused on the moon race. People watched the   
   launches on TV. Children dreamed of becoming astronauts. It was part of the   
      
      
    01:08:09   
    national identity. Today, space exploration doesn't capture   
   the public imagination the way it used to. Yes, there are enthusiasts. Yes,   
   SpaceX launches get some attention, but it's not the same. is not a national   
   obsession. Why? Well, partly because we've already done it. The moon landing   
   was historic because it was first. Going back won't have the same impact. It's   
   been done before. And partly because we have other concerns. Climate change,   
   political division, economic inequality,   
      
    01:08:43   
    pandemics. Space   
   exploration seems less urgent when we have problems here on Earth. But   
   I think that's shortsighted because space exploration isn't just about   
   exploring space. It's about advancing technology. It's about inspiring the   
   next generation. It's about ensuring humanity's long-term survival. You see,   
   Earth is fragile. Asteroids could hit us. Super volcanoes could erupt. Climate   
   change could make the planet less habitable. Pandemics could devastate the   
   population. We're   
      
    01:09:17   
    all on one planet. one tiny blue dot in an   
   enormous universe. And if something catastrophic happens, if Earth becomes   
   uninhabitable, we need somewhere else to go. The moon could be a stepping   
   stone. Mars could be a backup. Space colonies could ensure humanity survives   
   even if Earth doesn't. That's the real reason to explore space. Not for rocks   
   or flags or national pride, but for survival, for the long-term future of our   
   species. Now, let me talk about the physics of why space is so hard. Why we   
   can't just   
      
    01:09:54   
    easily go to the moon or Mars whenever we want. It   
   all comes down to energy, specifically the rocket equation. To escape   
   Earth's gravity, you need to reach about 11 kilometers per second. That's   
   25,000 miles per hour. And to achieve that speed, you need enormous amounts   
   of energy. And that energy comes from chemical rockets burning fuel. But   
   here's the problem. Fuel has mass. And to lift that mass, you need more   
   fuel. And that fuel has mass, too. It's exponential. For every kilogram   
   you want   
      
    01:10:29   
    to send to the moon, you need dozens of kilograms of   
   fuel. That's why the Saturn 5 was so huge. 3,000 tons at launch but only   
   45 tons of payload to the moon. The rest was fuel and structure, a ratio   
   of about 67 to1. And we're still using the same basic technology, chemical   
   rockets. We haven't fundamentally changed how we get to space since the 1,960   
   seconds. We've improved efficiency a bit. We've made rockets reusable, but the   
   basic physics is the same. To really transform space travel, we need new   
      
   01:11:06   
    propulsion technologies. Nuclear rockets, for example, they could   
   be much more efficient than chemical rockets. You could get the same thrust   
   with much less fuel. But nuclear rockets are politically difficult. People   
   don't like the idea of launching nuclear materials into space. What if the   
   rocket explodes? What if radiation leaks? The risks seem too high. So, we're   
   stuck with chemical rockets for now. And that limits what we can do. It   
   makes space travel expensive and difficult. In the long term, and I'm   
      
   01:11:41   
    talking centuries here, we need to move beyond rockets entirely,   
   maybe space elevators, maybe launch loops, maybe electromagnetic catapults,   
   technologies that don't require carrying all your fuel with you. But   
   we're not there yet. Not even close. So, for now, we're stuck with the   
   rocket equation. And that's one fundamental reason why space is hard. Now,   
   let me talk about Mars because that's really the next frontier. The moon is   
   close. We've been there. Mars is the challenge. Mars is where we need to   
      
   01:12:15   
    go next, but Mars is incredibly difficult. It's 140 million miles   
   away at its closest. The trip takes 6 to9 months. The astronauts would be   
   exposed to radiation the entire way. They'd experience muscle and bone loss   
   from microgravity. They'd face psychological challenges from isolation. And   
   when they get to Mars, they'd have to land on a planet with a thin atmosphere   
   too thin to use parachutes effectively, but thick enough to cause heating   
   during entry. They'd have to survive on a cold, dry,   
      
    01:12:48   
    toxic world   
   with no breathable air, no liquid water, and intense radiation. And then   
   after doing all that, they'd have to take off again and make the 6 to9 month   
   journey home. It's incredibly challenging, far harder than the moon. Some   
   people say we should skip Mars and go straight to building space stations or   
   colonies. O'Neal cylinders, rotating habitats in space. These would provide   
   artificial gravity, protection from radiation, controlled environments. And   
   you know what? That might be easier than   
      
    01:13:24   
    Mars in some ways. You   
   can build a space habitat anywhere. You don't need a planet. You just need   
   raw materials from asteroids and energy from the Sunday. But psychologically,   
      
   [continued in next message]   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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