6 ms·

Can you provide some examples?

feet 4y ago
The most prominent is the hyperloop. The energy needed to maintain the vacuum entirely cancels out, and possibly adds some, energy savings from reduced friction. Plus the speed gained would be negligible compared to a well designed atmospheric bullet train. It adds cost, complexity, and energy usage for literally no reason
- Huh1337 4y ago
  I never heard anybody claim that Hyperloop vacuum tunnels were about energy savings. Hyperloop is about replacing air travel with an alternative that could offer similar or higher speeds. If you want to go 1000+ km/h (or multiples) reducing friction is a requirement and definitely not because of energy savings but because the vehicle would heat up and/or break, and then of course the turbulence and noise.
  - feet 4y ago
    So which designs have gotten close to a significant increase over normal atmospheric bullet trains? That's addressed in my comment
    - Huh1337 4y ago
      Well maglevs are not used today exactly because of this issue - going past 600 km/h is dangerous - causes noise and turbulence affects the train too much, so it makes sense to venture in another direction, such as maglevs but in tunnels. What's addressed in your comment? You didn't show any other alternative offering speeds like Hyperloop, in theory, could. Not sure what you mean by your question about "which designs" - well, Hyperloop. Or do you expect me to hand you a finished project? It's just started. Even bullet trains took decades to get from proposal to project to finished.
mavhc 4y ago
He thought you could return a rocket from space and have it land vertically
- rocqua 4y ago
  And then, he returned a rocket from space and had it land vertically. Heck he's doing it consistently, and even synchronized on occasion. Musk is a flawed dude, but the physics behind space-x aren't his weak point.
  - deleted 4y ago
    [deleted]
  - bamboozled 4y ago
    He did none of that single-handedly though. Thousands, maybe millions of ours of man hours went into making all that happen. What spurred my original comment was that when I hear him talk, I think he does fail to acknowledge the people around him a little to conveniently. I don't care, I just don't think it's a good quality and I think longer term, it will probably lead to him having lower performing teams and people around him.
    - xedeon 4y ago
      > What spurred my original comment was that when I hear him talk, I think he does fail to acknowledge the people around him a little to conveniently I'm not sure if you're being facetious here. There are countless examples that exhibit the contrary. Here is one as recent as a few days ago: https://youtu.be/goT5gW57Chc?t=190 https://youtu.be/goT5gW57Chc?t=190 Below are a few (out of many others) prior examples: https://twitter.com/elonmusk/status/1051591623069429760 https://twitter.com/elonmusk/status/1051591623069429760 https://twitter.com/heydave7/status/1536015578091048960 https://twitter.com/heydave7/status/1536015578091048960
      - bamboozled 4y ago
        See my comment below but TL;DR I’d like to hear a bit more about “the great team” rather than Musk because I know behind that interview what hard work people are going through to make the things he is showing off happen. “Great job team…thanks for making me trillions” https://twitter.com/heydave7/status/1536015578091048960 https://twitter.com/heydave7/status/1536015578091048960 This one , as someone who often reads these types of mails is just a pep talk, to tell someone they respect me more than a rich person isn’t very flattering. Look I think you just like Elon Musk a lot. I don’t mind him either, I just know almost all of his success is built on the back of a lot of hard working individuals, which I think is pretty hidden behind a dude in XXXL T-shirts

feet 4y ago

The most prominent is the hyperloop. The energy needed to maintain the vacuum entirely cancels out, and possibly adds some, energy savings from reduced friction. Plus the speed gained would be negligible compared to a well designed atmospheric bullet train. It adds cost, complexity, and energy usage for literally no reason

Huh1337 4y ago
I never heard anybody claim that Hyperloop vacuum tunnels were about energy savings. Hyperloop is about replacing air travel with an alternative that could offer similar or higher speeds. If you want to go 1000+ km/h (or multiples) reducing friction is a requirement and definitely not because of energy savings but because the vehicle would heat up and/or break, and then of course the turbulence and noise.
- feet 4y ago
  So which designs have gotten close to a significant increase over normal atmospheric bullet trains? That's addressed in my comment
  - Huh1337 4y ago
    Well maglevs are not used today exactly because of this issue - going past 600 km/h is dangerous - causes noise and turbulence affects the train too much, so it makes sense to venture in another direction, such as maglevs but in tunnels. What's addressed in your comment? You didn't show any other alternative offering speeds like Hyperloop, in theory, could. Not sure what you mean by your question about "which designs" - well, Hyperloop. Or do you expect me to hand you a finished project? It's just started. Even bullet trains took decades to get from proposal to project to finished.

mavhc 4y ago

He thought you could return a rocket from space and have it land vertically

rocqua 4y ago
And then, he returned a rocket from space and had it land vertically. Heck he's doing it consistently, and even synchronized on occasion. Musk is a flawed dude, but the physics behind space-x aren't his weak point.
- deleted 4y ago
  [deleted]
- bamboozled 4y ago
  He did none of that single-handedly though. Thousands, maybe millions of ours of man hours went into making all that happen. What spurred my original comment was that when I hear him talk, I think he does fail to acknowledge the people around him a little to conveniently. I don't care, I just don't think it's a good quality and I think longer term, it will probably lead to him having lower performing teams and people around him.
  - xedeon 4y ago
    > What spurred my original comment was that when I hear him talk, I think he does fail to acknowledge the people around him a little to conveniently I'm not sure if you're being facetious here. There are countless examples that exhibit the contrary. Here is one as recent as a few days ago: https://youtu.be/goT5gW57Chc?t=190 https://youtu.be/goT5gW57Chc?t=190 Below are a few (out of many others) prior examples: https://twitter.com/elonmusk/status/1051591623069429760 https://twitter.com/elonmusk/status/1051591623069429760 https://twitter.com/heydave7/status/1536015578091048960 https://twitter.com/heydave7/status/1536015578091048960
    - bamboozled 4y ago
      See my comment below but TL;DR I’d like to hear a bit more about “the great team” rather than Musk because I know behind that interview what hard work people are going through to make the things he is showing off happen. “Great job team…thanks for making me trillions” https://twitter.com/heydave7/status/1536015578091048960 https://twitter.com/heydave7/status/1536015578091048960 This one , as someone who often reads these types of mails is just a pep talk, to tell someone they respect me more than a rich person isn’t very flattering. Look I think you just like Elon Musk a lot. I don’t mind him either, I just know almost all of his success is built on the back of a lot of hard working individuals, which I think is pretty hidden behind a dude in XXXL T-shirts