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Re: Did Nikola Tesla invented the Quantum computer?

From Bernd Paysan <bernd@net2o.de>
Newsgroups comp.lang.forth
Subject Re: Did Nikola Tesla invented the Quantum computer?
Date 2016-11-04 21:18 +0000
Organization A noiseless patient Spider
Message-ID <nviu03$raf$5@dont-email.me> (permalink)
References (5 earlier) <4e39079b-de4d-4bb3-9e14-17e14a973e55@googlegroups.com> <nu46mi$80t$1@dont-email.me> <93518ab1-c32e-4b5a-aa25-fa44509faed6@googlegroups.com> <nue39v$d47$2@dont-email.me> <2016Oct22.181534@mips.complang.tuwien.ac.at>

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Am Sat, 22 Oct 2016 16:15:34 +0000 schrieb Anton Ertl:
> Escape velocity is sqrt(2)*orbiting velocity, i.e., Solar escape
> velocity is 42km/s from the position of Earth.

Ah, I used a different system of inertia.  From Earth (moving around the 
sun), escape velocity is 30km/s straight up (still rotating with 30km/s 
around the sun).  Together with the horizontal velocity, this gives the 
42km/s relative to resting, and shows that moving straight forward "only" 
additional 12km/s are sufficient.

Note that while you need 11km/s from earth to leave, you can't just add 
that together to get 23km/s from surface to escape, rather you need to 
have 12km/s left when you go beyond the moon.  So your kinetic energy 
must be E_leave_earth+E_12km/s, and that means 16.3km/s are good enough.  
IIRC, the fastest object mankind ever accelerated were the Pioneers, 
which both had 18km/s (no fly-by required to leave the solar system).

> Fortunatley, we are
> already at 30km/s, so we only need an additional 12km/s (but that's a
> big issue when you have already have troubles escaping from Earth's
> gravity well.  The direction does not really matter as long as you avoid
> colliding with something.  E.g., you could go inwards at 42km/s relative
> to the sun, and you would at first get faster, and after passing the
> closest spot (perihelion), get slower again, reaching 42km/s again when
> crossing Earth orbit, and then escaping; the wonders of a gravity field
> at work.
> 
> Flybys are not mainly used to change direction, but to avoid having to
> pay for the extra 12km/s (or more, if you want to reach the outer solar
> system faster) all by yourself.  Instead, you exchange impulse with the
> planet you fly by, and only need to pay for reaching a close planet
> (Venus or Mars).

Oh, also a different inertia system view.  From a geometric point of 
view, all you get from a fly-by is a change of direction relative to the 
object you flew by.  Of course, that change of direction is an exchange 
of impulse, but it is completely elastic, so you can't gain any speed 
relative to that object (the actual unexplained speed difference we 
observed is is called "fly-by anomaly", it shouldn't be there, and it is 
very small).

Note that from the planet's point of view where you did the fly-by, you 
have exactly the same kinetic energy when you came in as when you left.  
Only your direction changed.

>>But for  a comet, you can expect that it comes in at nearly 30km/s down-
>>or upwards (depending if already passed by sun or not)
> 
> Correct that to 42km/s.

It's actually done later, but things are more difficult when you look 
closer, because direction matters: you could get anything between 12km/s 
(comet coming from behind) and 72km/s (comet coming the other way round).

-- 
Bernd Paysan
"If you want it done right, you have to do it yourself"
net2o ID: kQusJzA;7*?t=uy@X}1GWr!+0qqp_Cn176t4(dQ*
http://bernd-paysan.de/

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Did Nikola Tesla invented the Quantum computer? Manuel Rodriguez <aa5@gmx.net> - 2016-10-16 05:30 -0700
  Re: Did Nikola Tesla invented the Quantum computer? albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-10-16 15:05 +0200
    Re: Did Nikola Tesla invented the Quantum computer? Manuel Rodriguez <aa5@gmx.net> - 2016-10-16 06:44 -0700
      Re: Did Nikola Tesla invented the Quantum computer? albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-10-16 18:34 +0200
      Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-16 14:17 -0700
    Re: Did Nikola Tesla invented the Quantum computer? JUERGEN <epldfpga@aol.com> - 2016-10-16 09:58 -0700
    Re: Did Nikola Tesla invented the Quantum computer? Rod Pemberton <NeedNotReplyHere@xrsevnneqk.cem> - 2016-10-16 17:16 -0400
      Re: Did Nikola Tesla invented the Quantum computer? Bernd Paysan <bernd@net2o.de> - 2016-10-17 01:13 +0000
        Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-16 19:36 -0700
        Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-17 17:23 -0700
          Re: Did Nikola Tesla invented the Quantum computer? rickman <gnuarm@gmail.com> - 2016-10-17 20:49 -0400
            Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-17 21:38 -0700
              Re: Did Nikola Tesla invented the Quantum computer? Mark Wills <markwills1970@gmail.com> - 2016-10-18 05:31 -0700
                Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-18 18:34 -0700
                Re: Did Nikola Tesla invented the Quantum computer? rickman <gnuarm@gmail.com> - 2016-10-20 19:18 -0400
                Re: Did Nikola Tesla invented the Quantum computer? Cecil Bayona <cbayona@cbayona.com> - 2016-10-20 18:53 -0500
                Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-20 19:17 -0700
                Re: Did Nikola Tesla invented the Quantum computer? Mark Wills <markwills1970@gmail.com> - 2016-10-23 04:58 -0700
                Re: Did Nikola Tesla invented the Quantum computer? Cecil Bayona <cbayona@cbayona.com> - 2016-10-23 11:18 -0500
                Re: Did Nikola Tesla invented the Quantum computer? Rod Pemberton <NeedNotReplyHere@xrsevnneqk.cem> - 2016-10-27 19:14 -0400
            Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-18 01:11 -0700
              Re: Did Nikola Tesla invented the Quantum computer? rickman <gnuarm@gmail.com> - 2016-10-18 05:15 -0400
                Re: Did Nikola Tesla invented the Quantum computer? humptydumpty <ouatubi@gmail.com> - 2016-10-18 11:02 -0700
              Re: Did Nikola Tesla invented the Quantum computer? lawrencedo99@gmail.com - 2016-10-18 08:08 -0700
          Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-17 21:37 -0700
            Re: Did Nikola Tesla invented the Quantum computer? Mark Wills <markwills1970@gmail.com> - 2016-10-18 05:30 -0700
              Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-18 18:33 -0700
              Re: Did Nikola Tesla invented the Quantum computer? Rod Pemberton <NeedNotReplyHere@xrsevnneqk.cem> - 2016-10-19 04:03 -0400
                Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-20 19:16 -0700
                Re: Did Nikola Tesla invented the Quantum computer? lawrencedo99@gmail.com - 2016-10-21 17:36 -0700
                Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-22 22:06 -0700
                Re: Did Nikola Tesla invented the Quantum computer? lawrencedo99@gmail.com - 2016-10-22 23:04 -0700
                Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-23 01:11 -0700
                Re: Did Nikola Tesla invented the Quantum computer? jim <anon@example.com> - 2016-10-23 12:36 +0100
                Re: Did Nikola Tesla invented the Quantum computer? Mark Wills <markwills1970@gmail.com> - 2016-10-23 04:55 -0700
                Re: Did Nikola Tesla invented the Quantum computer? Coos Haak <htrofhc@gmail.com> - 2016-10-23 17:32 +0200
                Re: Did Nikola Tesla invented the Quantum computer? Cecil Bayona <cbayona@cbayona.com> - 2016-10-23 11:19 -0500
                Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-23 15:41 -0700
                Re: Did Nikola Tesla invented the Quantum computer? Bernd Paysan <bernd@net2o.de> - 2016-11-05 00:48 +0000
                Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-11-04 19:37 -0700
              Re: Did Nikola Tesla invented the Quantum computer? dunno <dunno@dunno.dunno> - 2016-10-19 22:13 +0000
                Re: Did Nikola Tesla invented the Quantum computer? "Elizabeth D. Rather" <erather@forth.com> - 2016-10-19 13:49 -1000
                Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-20 21:56 -0700
      Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-16 19:39 -0700
  Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-16 14:17 -0700
  Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-16 18:05 -0700
    Re: Did Nikola Tesla invented the Quantum computer? lawrencedo99@gmail.com - 2016-10-16 18:42 -0700
      Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-17 17:09 -0700
        Re: Did Nikola Tesla invented the Quantum computer? lawrencedo99@gmail.com - 2016-10-17 18:11 -0700
          Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-17 18:26 -0700
            Re: Did Nikola Tesla invented the Quantum computer? Cecil Bayona <cbayona@cbayona.com> - 2016-10-17 22:59 -0500
              Re: Did Nikola Tesla invented the Quantum computer? rickman <gnuarm@gmail.com> - 2016-10-18 01:26 -0400
                Re: Did Nikola Tesla invented the Quantum computer? rickman <gnuarm@gmail.com> - 2016-10-18 01:31 -0400
                Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-17 22:35 -0700
                Re: Did Nikola Tesla invented the Quantum computer? Cecil Bayona <cbayona@cbayona.com> - 2016-10-18 01:10 -0500
                Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-17 22:34 -0700
                Re: Did Nikola Tesla invented the Quantum computer? dunno <dunno@dunno.dunno> - 2016-10-19 21:27 +0000
              Re: Did Nikola Tesla invented the Quantum computer? lawrencedo99@gmail.com - 2016-10-17 22:51 -0700
                Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-18 00:01 -0700
                Re: Did Nikola Tesla invented the Quantum computer? lawrencedo99@gmail.com - 2016-10-18 00:29 -0700
                Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-18 00:50 -0700
                Re: Did Nikola Tesla invented the Quantum computer? lawrencedo99@gmail.com - 2016-10-18 08:04 -0700
                Re: Did Nikola Tesla invented the Quantum computer? albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-10-18 18:56 +0200
                Re: Did Nikola Tesla invented the Quantum computer? Bernd Paysan <bernd@net2o.de> - 2016-10-21 22:02 +0000
                Re: Did Nikola Tesla invented the Quantum computer? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-10-22 16:15 +0000
                Re: Did Nikola Tesla invented the Quantum computer? Bernd Paysan <bernd@net2o.de> - 2016-11-04 21:18 +0000
                Re: Did Nikola Tesla invented the Quantum computer? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-11-04 22:26 +0000
              Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-17 23:56 -0700
            Re: Did Nikola Tesla invented the Quantum computer? albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-10-18 13:02 +0200
              Re: Did Nikola Tesla invented the Quantum computer? Ron Aaron <rambamist@gmail.com> - 2016-10-18 14:34 +0300
                Re: Did Nikola Tesla invented the Quantum computer? albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-10-18 15:33 +0200
                Re: Did Nikola Tesla invented the Quantum computer? Ron Aaron <rambamist@gmail.com> - 2016-10-18 16:38 +0300
        Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-17 21:36 -0700
    Re: Did Nikola Tesla invented the Quantum computer? rickman <gnuarm@gmail.com> - 2016-10-16 22:20 -0400
      Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-16 19:37 -0700
        Re: Did Nikola Tesla invented the Quantum computer? rickman <gnuarm@gmail.com> - 2016-10-17 00:18 -0400
      Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-17 15:39 -0700
        Re: Did Nikola Tesla invented the Quantum computer? rickman <gnuarm@gmail.com> - 2016-10-17 19:24 -0400
          Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-17 18:21 -0700
            Re: Did Nikola Tesla invented the Quantum computer? rickman <gnuarm@gmail.com> - 2016-10-18 02:24 -0400
              Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-18 00:07 -0700
                Re: Did Nikola Tesla invented the Quantum computer? rickman <gnuarm@gmail.com> - 2016-10-19 03:20 -0400
                Re: Did Nikola Tesla invented the Quantum computer? hughaguilar96@gmail.com - 2016-10-20 22:38 -0700
          Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-17 21:35 -0700
        Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-17 21:35 -0700
        Re: Did Nikola Tesla invented the Quantum computer? dunno <dunno@dunno.dunno> - 2016-10-19 21:27 +0000
    Re: Did Nikola Tesla invented the Quantum computer? polymorph self <jackvanc3@gmail.com> - 2016-10-16 19:35 -0700
  Re: Did Nikola Tesla invented the Quantum computer? lawrencedo99@gmail.com - 2016-10-16 18:45 -0700
    Re: Did Nikola Tesla invented the Quantum computer? Paul Rubin <no.email@nospam.invalid> - 2016-10-16 20:09 -0700
  Re: Did Nikola Tesla invented the Quantum computer? Manuel Rodriguez <aa5@gmx.net> - 2016-10-18 08:23 -0700
    Re: Did Nikola Tesla invented the Quantum computer? albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-10-18 19:05 +0200

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