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Discussion in 'General Discussion' started by eloyc, Feb 9, 2018.

  1. digitalwanderer

    digitalwanderer Dangerously Mirthful
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    ROFLMFAO!!! Three points my friend, three points!
     
  2. Davros

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    You know who to turn to for world class comedy ;)
     
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  3. eloyc

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  4. eloyc

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    https://futurism.com/fusion-startup-breakthrough-unlimited-energy
     
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  5. cheapchips

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    I believe there's some actual proper physics behind that, it just needed lasers to catch up! Not sure what the road from theory, to a working net energy positive reactor, to rapidly rolling out a product would look like for them.

    My money is on Commonwealth Fusion Systems reaching net energy positive fusion first. Years of MIT small reactor experience + new high temperature super conductors + sensible development and productisation plan seems like a winner.
     
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  6. eloyc

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    https://futurism.com/the-byte/scientists-creating-mouse-human-hybrids

    Ok, this is a bit scary. And I'm surprised this doesn't come with the typical ethical debate.

    I suppose I'm ok with it but it just made me feel a bit uncomfortable.
     
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  7. eloyc

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    https://futurism.com/the-byte/scientists-claim-recreated-earths-first-life

    Hm... If this is confirmed and validated AND we can go further from here, that would be awesome.
     
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  8. TheAlSpark

    TheAlSpark Moderator
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    But should we? :p

    Your scientists were so preoccupied with whether or not they could that they didn't stop to think if they should!
     
  9. eloyc

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    That's a good question! I'm not sure about the answer, myself. If it's just low scale and they have full control... But things could go unexpectedly wrong, I know.

    What do you think about it? Should they?
     
  10. eloyc

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    https://futurism.com/scientist-jet-engine-electricity-thrust

    I hope this gets funded and implemented in real, practical uses.
     
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  11. cheapchips

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  12. eloyc

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    Yes, but think of all the space a rocket (I know, I'm totally ignoring cars and going straight for the rockets :grin:) needs to store fuel. Maybe use that space (or less?) to store efficient batteries, instead?
     
  13. nutball

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    So from that article:

    If you're taking propellant with you it doesn't sound a million miles from the electric propulsion systems (ion drives) that are already commonly used quite commonly in space-based applications (eg. Starlink, but lots of others too).
     
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  14. eloyc

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    Hm... I don't know. I guess we'll have to wait and see if this goes anywhere.
     
  15. cheapchips

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    Ion engines are really low thrust, but they can keep it up for long time (ahem). The Tang thruster, if it scales, is high thrust. From the article, power density is a big issue. We can feasibly create batteries with 3x the energy density of those available today and that's still not going to be enough for even short haul flights. Micro fission reactors are not going to be a popular option. Not even some of the more promising small fusion reactors are promising ones that'll fit in an airframe for the foreseeable future.
     
  16. eloyc

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    Well, that sucks...

    Regarding nuclear options, I read an article a few days ago related to space travel. I'll post it if I can find it again.
     
  17. nutball

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    I'm missing the physics here. Where does this extra thrust come from?

    To be clear about my question: jet engines and ion thrusters have completely different applications. A jet engine will not work in space, and using an ion engine in the atmosphere would be silly.

    So in what way is a Tang engine better for space-based applications than an ion drive?
     
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  18. cheapchips

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    Don't see how it's suitable for space either, just responding to it being compared to ion drives.

    The Tang engine's an air jet, rather than electric jet really. It's the compressed air being turn to plasma and expanding out of the back that's making it go. It'd be crap for space as it's massively power intensive and you still need to bring load of air as propellant.
     
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