Re: Can you push a spacecraft with light?

Newsgroups	sci.physics
Date	2016-01-21 14:40 -0800
References	<GO-dnQAcDtfmxjzLnZ2dnUU7-VednZ2d@giganews.com>
Message-ID	<7e1208ea-26ca-421d-beb2-ce1e09e32f8a@googlegroups.com> (permalink)
Subject	Re: Can you push a spacecraft with light?
From	"reber g=emc^2" <herbertglazier0@gmail.com>

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On Thursday, January 21, 2016 at 2:28:15 PM UTC-8, Sam Wormley wrote:
> Can you push a spacecraft with light?
> > https://www.youtube.com/watch?v=oIuvIDhcs8E
> 
> 
> > What if you could power a ship using sunlight instead of wind? Well
> > in space, you can! Solar sails or light sails are pushed with light
> > from the sun. Photons provide a kick when they reflect off the sail
> > pushing the sail like an air molecule in the wind pushes a sailboat.
> > Find out how a solar sail works and about the future of this
> > technology!
> 
> 
> -- 
> 
> sci.physics is an unmoderated newsgroup dedicated
> to the discussion of physics, news from the physics
> community, and physics-related social issues.

Photons from Sun trying to push a feather would be a waste of time.Keep in mind all the atoms a two inch feater has.Plus only gamma photons do the pushing.TreBert

Thread

Can you push a spacecraft with light? Sam Wormley <swormley1@gmail.com> - 2016-01-21 16:28 -0600
  Re: Can you push a spacecraft with light? "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-01-21 14:40 -0800
    Re: Can you push a spacecraft with light? benj <none@gmail.com> - 2016-01-21 20:45 -0500
    Re: Can you push a spacecraft with light? "hanson" <hanson@quick.net> - 2016-01-21 21:35 -0800
  Re: Can you push a spacecraft with light? jimp@specsol.spam.sux.com - 2016-01-21 23:25 +0000
    Re: Can you push a spacecraft with light? Sylvia Else <sylvia@not.at.this.address> - 2016-01-22 16:30 +1100
      Re: Can you push a spacecraft with light? jimp@specsol.spam.sux.com - 2016-01-22 05:46 +0000
      Re: Can you push a spacecraft with light? benj <none@gmail.com> - 2016-01-22 07:05 -0500
        Re: Can you push a spacecraft with light? Sylvia Else <sylvia@not.at.this.address> - 2016-01-22 23:28 +1100
    Re: Can you push a spacecraft with light? Mahipal <mahipal7638@gmail.com> - 2016-01-22 14:25 -0800
    Re: Can you push a spacecraft with light? Sam Wormley <swormley1@gmail.com> - 2016-01-23 10:03 -0600
      Re: Can you push a spacecraft with light? jimp@specsol.spam.sux.com - 2016-01-23 19:08 +0000
  Re: Can you push a spacecraft with light? Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-21 20:15 -0800
    Re: Can you push a spacecraft with light? benj <none@gmail.com> - 2016-01-22 07:02 -0500
    Re: Can you push a spacecraft with light? Sam Wormley <swormley1@gmail.com> - 2016-01-22 09:35 -0600
      Re: Can you push a spacecraft with light? pnalsing@gmail.com - 2016-01-22 13:19 -0800
  Re: Can you push a spacecraft with light? "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-01-22 12:57 -0800
    Re: Can you push a spacecraft with light? "hanson" <hanson@quick.net> - 2016-01-22 14:45 -0800

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