Interesting People mailing list archives
Re First Object NOT Teleported from Earth to Orbit
From: "Dave Farber" <farber () gmail com>
Date: Sun, 16 Jul 2017 16:36:44 -0400
Begin forwarded message: From: Mary Shaw <mary.shaw () gmail com> Subject: Re: [IP] Re First Object NOT Teleported from Earth to Orbit Date: July 14, 2017 at 9:29:40 AM EDT To: Dave Farber <dave () farber net> In addition, I'm having some trouble with "photon" as a member of class "object". Mary On Fri, Jul 14, 2017 at 6:16 AM, Dave Farber <farber () gmail com <mailto:farber () gmail com>> wrote:Begin forwarded message: From: John Gilmore <gnu () toad com <mailto:gnu () toad com>> Subject: Re: [IP] Re First Object NOT Teleported from Earth to Orbit Date: July 14, 2017 at 3:05:34 AM EDT To: dave () farber net <mailto:dave () farber net> Cc: "ip" <ip () listbox com <mailto:ip () listbox com>>This is the first time that any object has been teleported from Earth to orbit...No, no, no. It's not an object that was teleported. It was information about an object that was teleported.Uh, from looking at the article, NOTHING was teleported. They sent up a satellite (using a chemical rocket) that contained some kind of photon detector. They then sent photons from earth to the satellite, via a more complicated way of shining light upward. No "teleportation" was involved; the photons got from earth to orbit by the ordinary motion of photons through space. The quantum folks adopted a word ("teleportation") that actually means something else to 99% of people. Don't be confused. See: https://en.wikipedia.org/wiki/Teleportation <https://en.wikipedia.org/wiki/Teleportation> https://en.wikipedia.org/wiki/Quantum_teleportation <https://en.wikipedia.org/wiki/Quantum_teleportation> Note that to "teleport" one quantum state requires doing classical communication of two bits. This isn't an example of a science-fiction quantum encrypting ansible that spits information instantly over vast distances by using two local stores of entangled qubits. It doesn't work faster than the speed of light. It's just quantum guys using confusing terminology for some odd properties of matter. JohnArchives <https://www.listbox.com/member/archive/247/=now> <https://www.listbox.com/member/archive/rss/247/124143-b55e3b00> | Modify <https://www.listbox.com/member/?&> Your Subscription | Unsubscribe Now <https://www.listbox.com/unsubscribe/?&&post_id=20170714061702:90DFFBE2-687D-11E7-8322-C7A4C145FA6F> <http://www.listbox.com/>
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Current thread:
- Re First Object NOT Teleported from Earth to Orbit Dave Farber (Jul 14)
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- Re First Object NOT Teleported from Earth to Orbit Dave Farber (Jul 16)
- Re First Object NOT Teleported from Earth to Orbit Dave Farber (Jul 20)