As repugnant as it seems, there are sites from which one can learn about actual science.
An example is MIT Open Courseware.

MIT 8.01 Physics I: Classical Mechanics, Fall 1999
http://www.youtube.com/view_play_list?p=F688ECB2FF119649

You can browse the entire list at:
http://www.youtube.com/profile?user=MIT&view=playlists

There are other universities and private individuals who are developing and have developed course material for YouTube. Of course, some of the material varies in quality. But the MIT stuff is, unsurprisingly, pretty good.

Alternatively, one could simply pull an understanding from one's backside through meditation, biblical exegesis, or finding a crank to teach it.