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- Newsgroups: sci.physics.fusion
- Path: sparky!uunet!paladin.american.edu!gatech!usenet.ins.cwru.edu!eagle!mars.lerc.nasa.gov!edwlt12
- From: edwlt12@mars.lerc.nasa.gov (Mike Jamison (ADF))
- Subject: Re: Electrostatic Fusion
- Message-ID: <31DEC199209591303@mars.lerc.nasa.gov>
- News-Software: VAX/VMS VNEWS 1.41
- Sender: news@eagle.lerc.nasa.gov
- Nntp-Posting-Host: mars.lerc.nasa.gov
- Organization: NASA Lewis Research Center
- Date: 31 Dec 1992 09:59 EDT
- Lines: 51
-
- First, to the Sysadmin for sci.physics.fusion: I've had trouble with
- multiple duplications of messages I send from this account. Please advise
- me as to whether you get duplicates from all machines this message passes
- through!
-
- Now that that's out of the way, I have a few concerns about the electrostatic
- fusion idea:
-
- 1) Deflection of D by Pd. The author states that when high energy (well,
- sort of low-medium energy, at 10-20 keV) pass through a *thin* metal plate,
- very little deflection occurs. OK, I'll buy that. However, if I understand
- the idea presented, it appears that as the D ions travel towards the tip
- of the cone, they "bounce" back and forth, following a zigzag pattern up
- and out of the cone. Each "bounce" passes through a thinner and thinner
- section of cone. However, multiple passes through a thin slice add up to
- one pass through a thick slice. Hence, deflection cannot be ignored.
-
- 2) "Matter is made of mostly empty space": True. However, the electric
- fields of the Pd nuclei extend over quite a bit of that empty space. Maybe
- you can play around with averaging here, since there are so many Pd atoms,
- to allow you to neglect their E-fields.
-
- The big problem, though, is that the D ions are *also* "mostly empty space".
- Hence, an extremely large number of passes between D ions will occur before
- a D hits another D hard enough to fuse. The probability of a hit vs a miss
- would have to be worked out, with respect to D's in a Pd lattice. This will
- give you something like a "mean free path" for the D's, and from that you'll
- find out how many "zigzags" the D will go through before fusing with another
- D. You also have to weigh the probability of the D hitting another D vs.
- a Pd. You'll lose a lot of that acceleration to useless Pd collisions...
-
- 3) How about that acceleration, anyway? As Terry Bollinger has pointed out,
- You ain't gonna get out more than what you put in (which is why I don't see
- any reason for Fractofusion to work, BTW). Unless you've got inductance
- working for you (Note to John Logajan and Terr Bollinger: Remember those
- ^^^^ I meant Terry (Sorry, Terry)
- funny little books, like "shocking stories". You open the thing up and get
- zapped by a 1.5 volt battery, with the aid of an inductor, of course.)
-
- Remember that V = L dI/dt in an inductor, so when you suddenly interupt
- a current path (possibly what happens at the surface of the Pd rod) you get
- not only a huge (change in voltage with respect to distance, or acceleration)
- but also a huge change in voltage. It's pretty easy to get 100V using an
- inductor and a source of 10 V or less. Conservation of energy just makes
- sure that the current goes down as the voltage goes up.
-
- Anyway, the theory is at least as plausible as any other cold fusion theory,
- and more nuts and bolts than the others I've seen. But, then, it won't be
- "Cold Fusion" because 20 kV ain't "cold" :-)
-
- Mike Jamison
-