Talk:Laser propulsion

message: I have tagged the lead section for cleanup as it is far to abstruse for me to even think about trying to do it. Beeswaxcandle (talk) 09:27, 29 April 2009 (UTC)
thread_title:  Cleanup tags 

message: - I've just removed this section. Was created by a single ip address at end of March. Gives no citations and makes several dubious comments, especially about capability of lasers to boost city sized spacecraft into orbit. If you are the author - do you have a citation for this? If you do, should be attributed to them also, as I don't think most physicists think such powerful lasers are a near future possibility. Even in space - a powerful laser could only accelerate a city sized spacecraft rather slowly - though it would build up perhaps to respectable velocities if you kept it up for months and years of continuous laser power from Earth. But to boost from the Earth's surface to orbit - as far as I know this has only been shown feasible for really lightweight craft and you still have the issue of dealing with the opacity and the tendency of the Earth's atmosphere to disperse laser beams even for those, they can be made to hover, but I don't think any have been boosted all the way to orbit from the Earth's surface by this method, or anything like that.
The author may have Lightcraft in mind. These are lightweight vehicles and so far in tests AFAIK have only risen as far as, perhaps 100 meters or so.
If you think it should be included - please discuss here, and before putting it back into the article - you should back up the more way out assertions with citations - and also the language needs to be changed. Especially calling it "fail safe" unless you have a citation that says it can't fail - is not encyclopedic. Robert Walker (talk) 11:46, 20 April 2014 (UTC)
thread_title: Removed new section: "Fail-safe method to colonize other planets and moons"

message: you can extract image form nasa or other site and put it in the commons category--Beaucouplusneutre (talk) 15:40, 26 August 2011 (UTC)
thread_title:  illustration the article could be nice 

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