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| Path | csiph.com!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail |
|---|---|
| From | Sylvia Else <sylvia@not.at.this.address> |
| Newsgroups | sci.physics |
| Subject | Re: Can you push a spacecraft with light? |
| Date | Fri, 22 Jan 2016 16:30:22 +1100 |
| Lines | 23 |
| Message-ID | <dgdt3fFobdsU1@mid.individual.net> (permalink) |
| References | <GO-dnQAcDtfmxjzLnZ2dnUU7-VednZ2d@giganews.com> <lv58nc-c2m.ln1@mail.specsol.com> |
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| In-Reply-To | <lv58nc-c2m.ln1@mail.specsol.com> |
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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. 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. Sylvia.
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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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