Ah–I’d been wondering what that little camera icon in the Google Images search field meant. As the company explains,
You might have an old vacation photo, but forgot the name of that beautiful beach. Typing [guy on a rocky path on a cliff with an island behind him] isn’t exactly specific enough to help find your answer. So when words aren’t as descriptive as the image, you can now search using the image itself.
Or, “Any sufficiently advanced technology is indistinguishable from magic.” — Arthur C. Clarke