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Re: YASID space station underwear for reaction mass

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On 6/25/2018 6:02 PM, hamish.laws@gmail.com wrote:
> On Tuesday, June 26, 2018 at 10:57:04 AM UTC+10, Carl Fink wrote:
>> On 2018-06-26, Moriarty <blues95@ivillage.com> wrote:
>>> On Tuesday, June 26, 2018 at 8:30:05 AM UTC+10, Dorothy J Heydt wrote:
>>>> In article <0f1a6aae-93d3-4735-a33e-acb2b6fe69aa@googlegroups.com>,
>>>> Robert Carnegie  <rja.carnegie@excite.com> wrote:
>>>
>>> <snip>
>>>
>>>>> There's a controversial Doctor Who episode where
>>>>> the Doctor uses a cricket ball; it bounces off the
>>>>> hull and he catches it.  That part is okay...
>>>>> but he is /outside/ the spaceship.
>>>>
>>>> Hm, I don't think I've seen that one.  Can you remember the
>>>> title?  Which Doctor it was?
>>>
>>> Definitely Peter Davison. Google tells me it was "Four to Doomsday". The Doctor finds himself floating in space between a spaceship and the TARDIS. He hurls a cricket ball at the spaceship, it bounces back to him and his catching it gives him enough momentum to reach the TARDIS.
>>
>> Why would that be controversial? He would gain momentum from both his throw,
>> and catching the ball. The ship would gain equal momentum the other way.
>> Very basic physics.
> 
> a) The amount of momentum may not be huge. (Of course TV and movies commonly show knockback from being hit by bullets etc)
> b) I suspect that throwing something in space could be an interesting exercise.
> 
Unless the person figures out how to throw hard from their center of 
mass, it strikes me that the most likely result is them spinning nearly 
in place with only a slight drift.

-- 
Inquiring minds want to know while minds with a self-preservation 
instinct are running screaming.

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YASID space station underwear for reaction mass Nyrath <winchellchung@gmail.com> - 2018-06-25 09:15 -0700
  Re: YASID space station underwear for reaction mass Panthera Tigris Altaica <northerntiger@outlook.com> - 2018-06-25 09:53 -0700
  Re: YASID space station underwear for reaction mass Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2018-06-25 20:16 +0200
  Re: YASID space station underwear for reaction mass mwstone1948@gmail.com - 2018-06-25 13:40 -0700
    Re: YASID space station underwear for reaction mass Robert Carnegie <rja.carnegie@excite.com> - 2018-06-25 14:00 -0700
      Re: YASID space station underwear for reaction mass djheydt@kithrup.com (Dorothy J Heydt) - 2018-06-25 22:04 +0000
        Re: YASID space station underwear for reaction mass Moriarty <blues95@ivillage.com> - 2018-06-25 17:02 -0700
          Re: YASID space station underwear for reaction mass Carl Fink <carlf@panix.com> - 2018-06-26 00:57 +0000
            Re: YASID space station underwear for reaction mass hamish.laws@gmail.com - 2018-06-25 18:02 -0700
              Re: YASID space station underwear for reaction mass Dimensional Traveler <dtravel@sonic.net> - 2018-06-25 18:12 -0700
                Re: YASID space station underwear for reaction mass Kevrob <kevrob@my-deja.com> - 2018-06-25 18:39 -0700
            Re: YASID space station underwear for reaction mass Moriarty <blues95@ivillage.com> - 2018-06-25 18:08 -0700
          Re: YASID space station underwear for reaction mass djheydt@kithrup.com (Dorothy J Heydt) - 2018-06-26 04:08 +0000
            Re: YASID space station underwear for reaction mass hamish.laws@gmail.com - 2018-06-25 21:48 -0700
              Re: YASID space station underwear for reaction mass Kevrob <kevrob@my-deja.com> - 2018-06-26 10:18 -0700
              Re: YASID space station underwear for reaction mass nebusj-@-rpi-.edu (Joseph Nebus) - 2018-06-26 20:24 +0000
                Re: YASID space station underwear for reaction mass ted@loft.tnolan.com (Ted Nolan <tednolan>) - 2018-06-26 21:31 +0000
                Re: YASID space station underwear for reaction mass Kevrob <kevrob@my-deja.com> - 2018-06-26 15:36 -0700
    Re: YASID space station underwear for reaction mass Nyrath <winchellchung@gmail.com> - 2018-06-25 16:42 -0700
      Re: YASID space station underwear for reaction mass ted@loft.tnolan.com (Ted Nolan <tednolan>) - 2018-06-25 23:52 +0000
  Re: YASID space station underwear for reaction mass mwstone1948@gmail.com - 2018-06-26 10:15 -0700
  Re: YASID space station underwear for reaction mass mwstone1948@gmail.com - 2018-06-26 10:19 -0700
    Re: YASID space station underwear for reaction mass Peter Trei <petertrei@gmail.com> - 2018-06-26 10:42 -0700
    Re: YASID space station underwear for reaction mass Dimensional Traveler <dtravel@sonic.net> - 2018-06-26 10:55 -0700
      Re: YASID space station underwear for reaction mass nebusj-@-rpi-.edu (Joseph Nebus) - 2018-06-26 20:33 +0000

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