or red-blue anaglyph glasses to see the 3-D images in Theo Prins’s DIY stereoscopic paintings. Just go cross-eyed. It’s a pretty simple trick: When you look at the center of the stereoscopic ...

Of course, that fact came from the same knowledge base that said if you licked a pencil, you’d die of lead poisoning, even though the pencil was graphite, not lead, but it was called a lead pencil. So ...