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Subject: 
Re: Where's all that gravity coming from?
Newsgroups: 
lugnet.space
Date: 
Thu, 8 Mar 2001 21:21:41 GMT
Viewed: 
662 times
  
In lugnet.space, J.D. Forinash wrote:

Which is heavier, the bigger hydrogen tank or a Bussard scoop, figuring
that you have to either a) collect all the hydrogen you need to slow
down (read: half of what you need total) or b) have a Bussard scoop that
you can point in the direction opposite of your thrust, which seems even
more fragile than some of the other stuff? And even so, decelerating,
once you get slow enough it becomes approximately useless anyhow.

Basically, a Bussard scoop saves you half (ish) of what size your hydrogen
tanks need to be.

Would it be possible to make a Bussard scoop out of some kind of projected
magnetic field?  Two basic questions here: 1. do hydrogen atoms react to
magnetic fields and 2. could such a field be constructed/projected?

Unfortunately, I don't have an answer to either of these questions.

Oh, yeah, and another: would the energy expended on the bussard field be
more or less than the energy gained from the fuel collected?

Steve



Message has 1 Reply:
  Re: Where's all that gravity coming from?
 
Steve Bliss <steve.bliss@home.com> wrote in message news:tftfat0suhi02f1...4ax.com... (...) hydrogen (...) Any ionozed atom reacts to a magnetic field (since it has charge). I always assumed a Bussard ramjet requires a *big* electromagnetic scoop, (...) (24 years ago, 9-Mar-01, to lugnet.space)

Message is in Reply To:
  Re: Where's all that gravity coming from?
 
(...) It does have the annoyance that spinning up/spinning down affects both parts of the ship, so you have to use small thrusters to get pointing in the right direction before you can fire the main engine. This, interestingly enough, has a neat (...) (24 years ago, 8-Mar-01, to lugnet.space)

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