The potential for a sea change in so many fields and industries, as a result of 3-D printing is out there, as these 10 small homes built in a day clearly show.

I haven't made time to really think what this could mean, but the other day I was telling my husband that the 3-D printer potential brings to mind the old "Star Trek food replicators." Remember those?

Here's a recent article that discusses using a 3-D printer to create pizza for astronauts.

And of course, if we can print food and housing, what else might we be able to print? Clothing? Done that: Check out this bikini.

Cars or car parts? According to Jay Leno, that's been done too.

Fuel? Well who knows. Here's a Huff Post article that discusses a lot of amazing uses for these printers. (Including replacement bone and other body parts.)

Just think what these printers could do in 3rd world countries.