25 thoughts on “Neil deGrasse Tyson Explains How Ion Drives Work

  1. Neil, electric propulsion is also “so Robert Goddard,” he is the first
    person to write about it (But not publish it-that honor belongs to
    Tsiolkovsky) in 1906. ;)

    Great video otherwise, though!

  2. dont trample on my hypothetical theoretically possible projectile weapon of
    some possible future that may be within my
    lifetime….uh…………rights. damnit. .. can have it when you pry it
    out of my cold non-functioning cyborg hands. 

  3. New Video: Watch Neil deGrasse Tyson explain how Ion Drives work to Eugene
    Mirman: Neil deGrasse Tyson Explains How Ion Drives Work

  4. I appreciate so much that his first response to “can you make a gun” is
    “why do you have to take perfectly good science and turn it into a weapon?”

  5. The big caveat he brought up is that while Ion drives are much more
    efficient, they’re also smaller? So we invented a great new engine, but we
    can only power tiny little space ships? Does the engine even have enough
    grunt to get off the ground? Or is it strictly for use in space?

    What is the catch with these Ion drives? Because they sound mostly like a
    great idea.

  6. I would trade all my guns for a real working Phaser rifle from Star Trek.
    They utilize a “forced plasma beam” whatever that is. Lol
    Oh and it WILL be a second amendment weapon! I WANT ONE!

  7. The question about application to guns isn’t that odd. There is a
    different but related technology: rail guns are in fact being developed,
    but are less efficient. They use opposing magnetic fields driving slugs
    at thousands of miles per hour rather than opposing charges driving ions at
    thousands of miles per second.

  8. Beanstalks baby!

    Space elevator, cheap way to get out of the gravity well. Bring the
    materials up, build in orbit and we can pack a ship to Mars with more
    supplies and a whole lot less fuel. :)

    Most of the fuel for any space mission is burnt just getting the ship into
    orbit.

  9. I get annoyed when Neil about stuff like this because it’s the one thing he
    never goes into great detail about. If anybody knows a video where he goes
    into detail about this type of Tech. Please send me a link.

  10. The word Gun is etymologically derived from the word ENGINE, so since
    technically a gun IS a form of engine, one would assume that by word
    definitions if you can build an “Ion” engine, you are at the same time
    building an ion gun…

  11. Waal, so much to learn; and you Dr. Neil deGrasse Tyson is an incredible
    teacher. I am a teacher (Languages) and each day that watch you on youtube,
    StarTalk Radio or on TV Cosmos… I learn more and more…you inspire
    me…thanks

  12. New Video: Watch Neil deGrasse Tyson explain how Ion Drives work to Eugene
    Mirman: Neil deGrasse Tyson Explains How Ion Drives Work

  13. New Video: Watch Neil deGrasse Tyson explain how Ion Drives work to Eugene
    Mirman: Neil deGrasse Tyson Explains How Ion Drives Work

  14. New Video: Watch Neil deGrasse Tyson explain how Ion Drives work to Eugene
    Mirman: Neil deGrasse Tyson Explains How Ion Drives Work

  15. How do Ion Drives work? Find out, as astrophysicist Neil deGrasse Tyson
    answers a fan’s Cosmic Query and explains what ion propulsion is, and how
    ion drives function differently than chemical rockets. Neil discusses the
    benefits and drawbacks of each, prompting comic co-host Eugene Mirman to
    wonder if ion drives can be weaponized?

  16. New Video: Watch Neil deGrasse Tyson explain how Ion Drives work to Eugene
    Mirman: Neil deGrasse Tyson Explains How Ion Drives Work

  17. New Video: Watch Neil deGrasse Tyson explain how Ion Drives work to Eugene
    Mirman: Neil deGrasse Tyson Explains How Ion Drives Work

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