I am a physicist. I took a first look at LaViolette's website, and drew the conclusion that I didn't need to take a second look. He's convinced that the Biefield-Brown effect is a manifestation of antigravity when it's well known not to be, he claims his theory gives better explanations of phenomena that are already explained but doesn't actually derive these explanations, and he cites without corroboration some anecdotal accounts from third parties of absurd results. Worst of all, his references are principally to his own work going back about 15 years. Google his name and you'll find some highly critical discussions of his work, and some new age crap. He's a crank, pure and simple.
I've certainly googled him before, but don't remember finding anything by certified physicists. Maybe I didn't try hard enough. Beside the Hans Bethe comment, there's a review of one of his books on amazon.com from a Brazilian physicist.
But I wouldn't expect you to be in the least skeptical about what he has to say. After all, it's something you want to hear, so it must be true, right?
I don't appreciate this, but it's sort of par for the course for JREF, isn't it? To answer your question - no, it is not necessarily true. First of all, LaViolette's work on subquantum mechanics probably doesn't qualify as a physics theory, in the sense of it not being mathematical enough. Nevertheless, he has somehow gotten quantitative predictions from it. Hence, he may be "not even wrong", yet nevertheless have gotten a handle on what, someday, will be part of a respectable theory.
As far as the experimental reports of concrete smashing, they also don't need to be true. (What a silly accusation!) From a scientific perspective, it's perfectly legitimate to treat them as tentatively false, until verified independently.
Let's be clear here, though, about one thing. Regardless of your opinion of LaViolette, the claim of smashing 4 inches of concrete, experimentally, in a lab, is an unambiguous one. No mistaking it. So, either the phenomenon is real, or Podkletnov lied to LaViolette, or LaViolette lied.
Do you agree with this last sentence?
When you ask your physicist friends, be sure to mention that the gravity pulses travel at several thousand times the speed of light.
Dave
Will do! Two (or maybe 3) that I will definitely ask are known to me, but not friends. I should have enough time to knock on a few other doors, and if so, these other physicists will be complete strangers.
I will also have copies of the Podkletnov and Modanese paper printed out.
Since you're a physicist, I hereby invite you to contribute to this informal survey, by telling us whether or not you have even heard of the concrete smashing effect claimed (so we're told by LaViolette) by Podkletnov and his team, before reading this thread.
