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- From: terry@asl.dl.nec.com
- Subject: Wegde-Out; liquid lithium; UC & Pd; liquids with wide temp ranges
- Message-ID: <1993Jan5.161234.25298@asl.dl.nec.com>
- Originator: terry@aslss01
- Sender: news@asl.dl.nec.com
- Nntp-Posting-Host: aslss01
- Organization: (Speaking only for myself)
- Date: Tue, 5 Jan 1993 16:12:34 GMT
- Lines: 82
-
-
- Hi folks,
-
- A few quick comments:
-
-
- 1. WEDGE-OUT
-
- My favorite response so far was from Dieter: He described my "wedge-out"
- mechanism as sounding a lot like wishful thinking.
-
- Alright! That's exactly the kind of whack-em-about-the-ears criticism
- that the UC (ultracavitation) idea needs. Dieter zeroed in on exactly
- the weakest link: Can you _really_ get massive acceleration through this
- kind of proposed mechanism, or not?
-
- So I'll echo the challenge: Can anyone out there show one way or the
- other whether this wedge-out idea is either bogus or has merit?
-
- Also, is there any chance someone out there can simulate this issue?
- (I tend to be leary of easy proofs for a system that is so drastically out
- of equilibrium.)
-
- Again, the key premise is that a very sharp pressure/vacuum transition on
- an inwardly collapsing void will lead to substantial increases in inward
- velocity for some fraction of the surface molecules. True or false? Why?
-
-
- 2. LIQUID LITHIUM CAVITATION
-
- Very, very premature, but someone is bound to ask, so I'll pre-empt the
- question: If you could get appreciablely high levels of D-T fusion in
- liquid lithium, wouldn't that be a good way to breed more T?
-
- FARFETCH (Meaning I _won't_ include the following in the UC draft paper):
-
- IF the effect exists at all (recall that Jones et al will not have their
- measurements for a while), then yes, lithium would tend to swallow neutrons
- quite nicely and breed T out of them. Shucks, you might even be able to
- use the cavitation effect itself to squeeze out the T into voids. That
- would be rather cute, actually -- feed it Li and D and conceivably you
- might be able to keep the T isolated mostly internal to the lithium. (It
- would also sort of emphasize that fusion eats Li and D, _not_ "just D.")
-
- I have no idea what the breakeven point would be for such a system would
- be, but it could certainly be calculated. Don't be overly surprised and/or
- disappointed if it proves to be astronomically higher than any of the
- results that come out of UC fusion experiments over the next few months --
- IF in fact UC fusion is demonstrated at all!
-
-
- 3. UC AND PALLADIUM
-
- The Pd media are sufficiently poor candidates for UC that I haven't really
- looked at them much. But I applaud the exploration of the idea on the net,
- and will be interested in seeing where it goes.
-
- PLEASE note that under no imaginable conditions could UC in Pd EVER give
- the kind of huge-heat-with-negligable-radiation results originally claimed
- by P&F. UC fusion would necessarily be conventional hot fusion with very,
- very conventional byproduct and radiation profiles.
-
- Thus if the high-heat effect exists at all, it is an unrelated mechanism.
- (Low-radiation from Pd _without_ heat is at least plausible as a UC effect,
- however.)
-
-
- 4. LIQUIDS WITH WIDE TEMPERATURE RANGES
-
- It's implicit in the UC draft, but let me state it in a single sentence:
-
- Liquids that remain liquid over a very wide range of temperatures are
- much more likely to be interesting than ones that have only a short range
- between solidification and vaporization.
-
- Thus liquid helium would be a _really_ poor UC choice by these criteria,
- and liquid mercury would be a quite good one. Mixtures of liquids will
- general do better by this criterion than single-composition liquids
-
- Cheers,
- Terry
-
-