Just because the guy picked Wikipedia as a source doesn't make it false. It's actually a pretty great source for these sort of things, because 15 year old boys usually don't have a stake in posting false entries on 50 year old engineering topics.
Actually this is really only true if you already understand the reference you are looking up on Wikipedia and just needed a quick reference. For new topics it's very important to follow up with additional resources besides Wikipedia.
The reason is that any page is easy for someone to edit. In fact Wikipedia frequently combats Wikipedia SPAMMING where false content is placed in all the time. 15 year old posts like the moon is green cheese is easy for the moderators to spot and correct.
Technical reference material is extremely difficult to feret out false references without experts of that content being the moderator. For example, what if I changed the Analog TV page to include how it was really made possible by the "encabulator"
Check this video out for example, a great engineers joke. But for the common internet "joe", the technical terms could make it sound very factual. If you thought it was real after watching it, you likely are a wikipedia moderator and help proove that the content there is not always accurate.
Newer video spoofing the next one. Of course, the biggest difference is that the Retro-Encabulator uses the
modial interaction of magneto-reluctance and capacitive directance
[ame=http://www.youtube.com/watch?v=RXJKdh1KZ0w]YouTube - Rockwell Retro Encabulator[/ame]
Here's the one that was spoofed by above:
[ame=http://www.youtube.com/watch?v=lVZ8Ko-nss4&feature=related]YouTube - Turbo Encabulator - Rockwell[/ame]
Now, here's your chance to create whatever you want about the "encabulator" on Wikipedia! Have lot's of fun! Put in all kinds of techno babbledy gook.
:
http://en.wikipedia.org/wiki/Encabulator Just click on the "Start the Encabulator article".
Now that you've got your editting skills completed, you too can now rewrite history and facts to your hearts content on Wikipedia.