Wikiversity:Help desk/archives/June 2008

Viewing stars from the moon
How come this picture shows a black sky? Is it because the sun is out and it drowns out all the other light from all the stars, and then there is not enough atmosphere to show a blue sky? Something else? --Remi 05:54, 3 June 2008 (UTC)


 * This type of pic has been used by conspiracy theory advocates to "prove" that the Moon landing was faked. Of course, only idiots would forget the stars when filming a faked Moon landing.  The real explanation is rather boring, that point objects like stars don't show up well with a close focus in a low resolution pic.  If they used an infinite focus setting, the stars would show up better but the foreground would be blurry.  The lack of atmosphere may also play a role, as Earth's atmosphere tends to make the stars look larger and blurrier than they look in space or on the Moon. StuRat 08:53, 3 June 2008 (UTC)

What are the key differences between Wikiversity and Wikibooks?
... and where should I start a Free per article commentary project of the The Civil Code of the Russian Federation? (in russian) --Eugrus 13:54, 14 June 2008 (UTC) P.S. The project will be closely integrated with Russian Civil code text at Wikisource and Law Project at Russian Wikipedia --eugrus 14:10, 14 June 2008 (UTC)
 * Please see: differences between Wikiversity and Wikibooks. --McCormack 13:56, 14 June 2008 (UTC)
 * But what is about my Free per article commentary project of the The Civil Code of the Russian Federation? (Civil code text + links on corresponding laws and court practice). It is a book by its' form (as a large law itself law is), but not actually. Are there any other law commentary projects at Wikimedia sites?
 * A commentary on a code of civil law probably isn't suitable for Wikiversity. I'd suggest you try Wikibooks. --McCormack 14:26, 14 June 2008 (UTC)

can we convert power into signals ?
this question was asked by User:Eeeismail (copied from here), Erkan Yilmaz uses the Chat (try) 07:27, 22 June 2008 (UTC)


 * I'm not quite sure how to interpret the question, but the answer appears to be "yes" to any interpretation I can think of:


 * 1) Can any source of power be used to generate some form of signal ? Yes, by converting the source of power to electricity and using that to send radio signals, for example.


 * 2) Can signals be sent through electrical lines ? Yes, even at the same time as electricity is sent on those lines.


 * 3) Can the power actually be the signal ? Yes, by varying amount of power in any medium, such as radio waves, you can also send a signal.


 * If you meant the question is some other way, please let us know. StuRat 10:40, 23 June 2008 (UTC)