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Re: Did Nikola Tesla invented the Quantum computer?

From Ron Aaron <rambamist@gmail.com>
Newsgroups comp.lang.forth
Subject Re: Did Nikola Tesla invented the Quantum computer?
Date 2016-10-18 14:34 +0300
Organization A noiseless patient Spider
Message-ID <nu51ba$l4e$1@dont-email.me> (permalink)
References <d8aff20f-48eb-4bc9-8cf8-9b05311ba238@googlegroups.com> <26de540c-dac0-4847-b65a-5ab947d0be80@googlegroups.com> <ceceef06-21d6-4a2e-b31f-a560e69e25ed@googlegroups.com> <4e39079b-de4d-4bb3-9e14-17e14a973e55@googlegroups.com> <nu4vfp$d4e$1@cherry.spenarnc.xs4all.nl>

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On 18/10/2016 14:02, Albert van der Horst wrote:

> So here is an exercise from a physics book:
> 
> What is the weight of a comet that on impact releases the same energy
> as as a hydrogen bomb of 1 megaton ( 10^9 kg of tnt)?
> Comets move at about 40km/s relative to earth.

OK, that's kind of fun.

1 ton TNT ~= 4.184e8 joules (according to Wikipedia), so
1 MT TNT ~= 4.184e14 joules (e.g. kg (m/s)^2)

To be found: mass of comet traveling 40 km/s having equivalent kinetic
energy of 1 MT TNT.

E = 0.5 * m * v^2

so:

4.184e14 = m * 0.5 * (40km/s * 1000m/km)^2

or

m = 8.368e14 / 1.6e9
  = 5.23e5

or about 523,000 kg

did I drop any units/ miss decimals?

Assuming that's about right, such a comet made of frozen water would be
(if as dense as water) 523000 liters or a cube about 52.3 meters on a
side.  Not huge by any means.

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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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