Space 'spider webs' could propel future probes

Space 'spider webs' could propel future probes

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Envoyée le jeudi 24 avril 2008 17:07:15
par newscientistvideo
Vue 37411 fois

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Read more:
http://space.newscientist.com/article/dn13776

A solar sail with positively charged wires might be able to repel positive ions in the solar wind and thus propel itself through space (Courtesy of Pekka Janhunen)

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tappakeggaday1

most energy is lost when accelerating aka fuel.I still hold out for a saucer shape combined with solar sail but feel like slow take off would be better to save fuels for space using like a giant inner tube filled with helium with a control valve on it. if the inner tube expanded to a degree the farther away from earth then the release valve could be opened and then a booster could then be fired in burst for orbit
mercredi 04 mai 2011 22:52:17
thaoval123

yes, all we need is to get a tokamac (giant doughnut shaped reactor) up there.. they dont weigh much at all..
jeudi 10 juin 2010 12:16:35
strilight

1.21 gigawatts!
lundi 01 mars 2010 15:46:00
ActiveStorage

haha would take a while )
dimanche 26 juillet 2009 01:10:09
theinsane102

Actually a Solar sail would out perform a nuclear rocket, by a factor of 100. Nothing can compete with solar sails of any kind. A dusty plasma sail would get you to Pluto in 5 months.
mercredi 08 juillet 2009 03:12:43
kaizer310

space travel would be much easier and faster if we used a nuclear bomb in space as propulsion... do the math
mercredi 22 avril 2009 15:10:54
OriMedian

very interesting...
vendredi 09 janvier 2009 11:28:58
Drbigballs

how does it stop?
vendredi 18 juillet 2008 08:44:07
Orion16x

it needs more jigawatts!
mercredi 07 mai 2008 13:42:21
dewey32167

FULL POWER TO THE ELECTRON GUN!!! lolz
vendredi 02 mai 2008 00:19:13
Ichinin

So what is the electron gun supposed to do, make it look cool?
mercredi 30 avril 2008 03:56:32
eddydogleg

On my planet we used this type of propulsion system centuries ago.
mardi 29 avril 2008 20:53:36
VibrateHigh

The planet is strong - yes - it will survive even after we have raped its resources and changed the very nature of it. It may go on forever, without air that we can breathe, without water we can drink and without food that we can eat. We are changing natural patterns - and have been for years. We think we are smarter than we are. Again, you are right, the planet IS strong and - it will survive - we will not. This is not play.
mardi 29 avril 2008 11:53:27

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