From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,60e2922351e0e780 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-11-29 18:33:51 PST Path: archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newshub.sdsu.edu!small1.nntp.aus1.giganews.com!border1.nntp.aus1.giganews.com!intern1.nntp.aus1.giganews.com!nntp.giganews.com!nntp.comcast.com!news.comcast.com.POSTED!not-for-mail NNTP-Posting-Date: Sat, 29 Nov 2003 20:33:49 -0600 Date: Sat, 29 Nov 2003 21:33:48 -0500 From: "Robert I. Eachus" User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: Re: OT: Nuclear Waste (Was Re-Marketing Ada) References: <49cbf610.0311191248.7eb48a43@posting.google.com> <49cbf610.0311200221.1df60a@posting.google.com> <49cbf610.0311291522.43865a57@posting.google.com> In-Reply-To: <49cbf610.0311291522.43865a57@posting.google.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Message-ID: NNTP-Posting-Host: 24.34.214.193 X-Trace: sv3-1aWQ5j3Oge0u1aXWY6luO/+TAtNPbtqPacc1CsYvNzEAPCV15k3zZsPl0BmF7SldUe2ItKV9DqkrnTY!q5a2UxUCCc4RGGkZMSuX0+7FewnoxUoxf+PvMlINEvJTKKpxsjItSC2s7qSKdw== X-Complaints-To: abuse@comcast.net X-DMCA-Complaints-To: dmca@comcast.net X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.1 Xref: archiver1.google.com comp.lang.ada:3038 Date: 2003-11-29T21:33:48-05:00 List-Id: Dmytry Lavrov wrote: > It's really working experiment.But it have nothing with teleportation, > it's _old_thing_ but _only_now_ it's named as teleportation.That's bad > when such things are so widely published with so incorrect name just > only to show that now we have lots of new researches and discoveries. > > There's no meaning of "teleportation" in science. > That experiment is more like to be telekines or telepathy than > teleportation. We'll have to agree to disagree. To me teleportation is a term that describes making a exact copy of something at a different location, without the thing itself traversing the intervening distance. Teleportation in science fiction has used both moving the object itself though some other dimension or dimensions, or a copying process. Whether the copy has continuity with its predecessor is of interest only if you are being teleported. Quantum teleportation incidently comes down on the continuity side of that issue, which in part is why it can't be used to duplicate something. (If you could make two copies, one of them must not be the original.) > Super-luminal communications lead to time travel,it's quite simple can > be derived from special relativity and it's 100% surely for me because > SR proved by experiments even if SR is incorrect a bit , but why that > papers are closely related and aren't referencing one to other? Uh, did you understand the Lentz, et. al. result? When I first saw it, I felt as you did, that it implied time-travel. But when you do the thought experiment of moving the waveguide with respect to the labratory reference frame, the time required for the signal to transit the gap remains the same for all observers. If you think someone should accelerate a waveguide to a significant fraction of c to verify it be my guest. But since the transit time is independent of the actual lenght of the gap, I would be very surprised if there is some other effect that makes it depend on the apparent length of the gap. Notice incidently that the amount of signal that is transmitted does depend on the apparent length of the gap. But again, if you do the math, it all works out. If the reciever and transmitter are moving with respect to each other, the total energy measured (reflection plus transmission) can be than the original signal. But that difference is accounted for by the shift in the frequency of the reflected beam. > I can even trust last two papers ;-). They shows that time travel and > superluminal is _maybe_ possible.Even don't have reason to non-trust > 'em ;-),i also think that it's maybe possible. > Even if it's right and proved there's nothing with time mashine or at > least time phone. Have you looked at Hawking's recent work on closed timelike loops? As I understand it, the only way you can use a black hole as a time machine is to change its mass. (Adding small black holes--or any large quantity of matter will do.) There is a shell around the black hole where there are an infinite number of photons following closed timelike curves (orbits). These photon shells have no energy/rest mass in the containing space, but an infinite amount of energy relative to anything entering the ergosphere, so touch one and die. But if you change the mass of the black hole by dropping mass in, the shell inside of your path will cease to exist and a new layer will form enclosing you. If your course is backwards in time, you can exit where two smaller black holes are colliding to create the one you entered. Time travel by this method may be possible, but talk about dangerous! You need colliding black holes to get in, another collision where you exit, and a microsecond error in plotting your course could be fatal. -- Robert I. Eachus 100% Ada, no bugs--the only way to create software.