Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae

From	rickman <gnuarm@gmail.com>
Newsgroups	comp.lang.forth
Subject	Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae
Date	2014-11-19 16:12 -0500
Organization	A noiseless patient Spider
Message-ID	<m4j15b$7qa$1@dont-email.me> (permalink)
References	<dbbe1188-ef99-4b8b-aaf1-3b9f0dcfcaf7@googlegroups.com> <b85f1dd2-8482-4275-b350-87fc9e4a09df@googlegroups.com> <9d07693c-9246-4dce-b1a0-71edcb95be3b@googlegroups.com> <m4ij0p$cb9$1@dont-email.me>

Show all headers | View raw

On 11/19/2014 12:12 PM, Bernd Paysan wrote:
> Jason Damisch wrote:
>
>> On Tuesday, November 18, 2014 9:45:22 AM UTC-8, rati...@gmail.com wrote:
>>
>>>     Do  you folks   believe in dreams  and visions?
>>
>> I was watching a television program about comets in my motel room after
>> Forth Day.  I saw that the television program was suggesting it would be
>> possible for humans to deflect such a wayward comet such that it would not
>> crash into the Earth.  But, after following the "New Space" movement for
>> over a decade, I will conclude that we still may not be able to have the
>> redundant quick response heavy lift reusable launch capabilities necessary
>> to accomplish such a task. In my opinion, I think that if they discovered
>> a killer asteroid next week, and that if we only had two weeks afterwards
>> to deflect it, we as a species would be reduced to the stone age by the
>> fourth week.
>
> Well, there are lot of "ifs" there.  First of all: wouldn't it be cheaper if
> we simply map all the killer asteroids and comets, so that we have a 30
> years warning period before they will impact?
>
> It is pretty obvious that reaching such a comet takes 10 years if you have a
> reasonable budget (see Rosetta).  Landing on it is a piece of cake, as long
> as we have enough RTX2010s left ;-). Vaporizing a small part of its surface
> with a nuke isn't difficult, either; this will result in a small deflection.
> If you have enough time, a small deflection is completely sufficient to get
> it out of the "danger zone".
>
> If there are just two weeks to impact, there's no way to do anything.  This
> is not "Armageddon" SciFi, this is real live.

You are close to the problem.  It is more like the chances of finding an 
object on a collision course is very small.  The chance it will impact 
within two weeks of finding it are infinitesimal.

What is much more likely is that we would have some number of years 
before an impact.  Even then it would be dicey if we could intercept it. 
  The problem is not supply of rockets, it is orbital mechanics.  We 
can't just shoot a rocket to any point in the solar system at any time. 
  It has to be orchestrated with the grand planetary scheme.  In other 
words, it can take years to get to the object when it is still far 
enough away that we can make a significant change to its orbit.

Fortunately, we would most likely have not just years but decades.

-- 

Rick

Back to comp.lang.forth | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae JUERGEN <epldfpga@aol.com> - 2014-11-13 14:09 -0800
  Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae hughaguilar96@yahoo.com - 2014-11-13 19:19 -0800
    Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae visualforth@rocketmail.com - 2014-11-13 20:11 -0800
      Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae hughaguilar96@yahoo.com - 2014-11-13 20:22 -0800
        Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae Mark Wills <markwills1970@gmail.com> - 2014-11-14 02:48 -0800
          Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae Forth Wright <forthwrightly@spritely.net> - 2014-11-14 11:05 +0000
            Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae november.nihal@gmail.com - 2014-11-14 09:27 -0800
              Re: Comet Landing - a triumph for Forth in Hardware and Forth in Softw all2001@spambog.com (Wolfgang Allinger) - 2014-11-14 16:11 -0300
                Re: Comet Landing - a triumph for Forth in Hardware and Forth in Softw rickman <gnuarm@gmail.com> - 2014-11-14 21:34 -0500
                Re: Comet Landing - a triumph for Forth in Hardware and Forth in Softw all2001@spambog.com (Wolfgang Allinger) - 2014-11-15 06:13 -0300
                Re: Comet Landing - a triumph for Forth in Hardware and Forth in Softw Rolf Schroedter <rolf.schroedter@dlr.de> - 2014-11-18 10:30 +0100
              Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae Paul Rubin <no.email@nospam.invalid> - 2014-11-14 12:26 -0800
                Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae visualforth@rocketmail.com - 2014-11-14 13:04 -0800
                Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae JUERGEN <epldfpga@aol.com> - 2014-11-15 01:27 -0800
          Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae "Elizabeth D. Rather" <erather@forth.com> - 2014-11-14 07:46 -1000
          Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae hughaguilar96@yahoo.com - 2014-11-14 21:44 -0800
            Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae hughaguilar96@yahoo.com - 2014-11-15 13:00 -0800
              Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae rickman <gnuarm@gmail.com> - 2014-11-16 00:15 -0500
      Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae rickman <gnuarm@gmail.com> - 2014-11-13 23:33 -0500
  Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae Howerd <howerdo@yahoo.co.uk> - 2014-11-14 08:42 -0800
  Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae Paul E Bennett <Paul_E.Bennett@topmail.co.uk> - 2014-11-15 03:16 +0000
  Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae ratiovsh@gmail.com - 2014-11-18 09:45 -0800
    Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae Jason Damisch <jasondamisch@yahoo.com> - 2014-11-19 08:03 -0800
      Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae Paul E Bennett <Paul_E.Bennett@topmail.co.uk> - 2014-11-19 16:49 +0000
        Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae hughaguilar96@yahoo.com - 2014-11-19 17:58 -0800
          Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae rickman <gnuarm@gmail.com> - 2014-11-20 04:21 -0500
          Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae Jason Damisch <jasondamisch@yahoo.com> - 2014-11-20 11:04 -0800
            Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae Jason Damisch <jasondamisch@yahoo.com> - 2014-11-20 11:18 -0800
            Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae hughaguilar96@yahoo.com - 2014-11-20 19:43 -0800
              Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae "Rod Pemberton" <buzzoff@nonamewhichexists.cmm> - 2014-11-21 19:56 -0500
          Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae "Rod Pemberton" <buzzoff@nonamewhichexists.cmm> - 2014-11-20 22:29 -0500
            Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae rickman <gnuarm@gmail.com> - 2014-11-20 22:49 -0500
            Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae Mark Wills <markwills1970@gmail.com> - 2014-11-21 02:01 -0800
              Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae hughaguilar96@yahoo.com - 2014-11-21 16:38 -0800
                Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae "Rod Pemberton" <buzzoff@nonamewhichexists.cmm> - 2014-11-21 20:31 -0500
                Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae visualforth@rocketmail.com - 2014-11-22 11:30 -0800
                Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae "Rod Pemberton" <buzzoff@nonamewhichexists.cmm> - 2014-11-22 14:52 -0500
                Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae Andrew Haley <andrew29@littlepinkcloud.invalid> - 2014-11-23 05:02 -0600
              Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae "Rod Pemberton" <buzzoff@nonamewhichexists.cmm> - 2014-11-21 19:43 -0500
              Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae Coos Haak <chforth@hccnet.nl> - 2014-11-22 01:33 +0100
      Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae Bernd Paysan <bernd.paysan@gmx.de> - 2014-11-19 18:12 +0100
        Re: Comet Landing - a triumph for Forth in Hardware and Forth in Softw all2001@spambog.com (Wolfgang Allinger) - 2014-11-19 16:42 -0300
        Re: Comet Landing - a triumph for Forth in Hardware and Forth in Software From steering telescopes to steering Philae rickman <gnuarm@gmail.com> - 2014-11-19 16:12 -0500

csiph-web