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Groups > sci.physics > #547138
| From | jimp@specsol.spam.sux.com |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: Can you push a spacecraft with light? |
| Date | 2016-01-22 05:46 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <7bs8nc-f8o.ln1@mail.specsol.com> (permalink) |
| References | <GO-dnQAcDtfmxjzLnZ2dnUU7-VednZ2d@giganews.com> <lv58nc-c2m.ln1@mail.specsol.com> <dgdt3fFobdsU1@mid.individual.net> |
Sylvia Else <sylvia@not.at.this.address> wrote: > On 22/01/2016 10:25 AM, jimp@specsol.spam.sux.com wrote: >> Sam Wormley <swormley1@gmail.com> 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! >> >> Ancient news and childishly simplistic; real sails are airfoils. >> > Probably best not to use aerofoils in this application. They wouldn't > work at all well. Hence my comment the original post is childishly simplistic. > The best solar sail has a mirror surface and is completely flat. In > practice, some compromise on the flatness will almost certainly be made > for engineering reasons. While the best of real sails are nowhere near flat. > Sylvia. -- Jim Pennino
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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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