“What you see is what you keep.” — This incredibly lame slogan was actually trademarked by the appropriately named Joker Technologies for use in the marketing of its Active-I spy glasses.

But when you use these stealthy shades, with their built-in video camera and microphone that capture everything you see and hear, you can see why you won’t necessarily be keeping anything recorded on them.

On the surface, they look like an ordinary pair of sunglasses. But look closely and you’ll see a minuscule 640 x 480 VGA camera and microphone embedded in the front of the frames.

Master controls run down the...

1883: The world’s first elevated electric railway in the world makes a trial run. It’s in Chicago, of course. It’s indoors, and it won’t last, but the idea will.

New York City began elevated railway service in the early 1870s, running in Manhattan on Ninth Avenue and Greenwich Street. It was America’s first elevated railroad, but it was steam-powered. Steam locomotives put out prodigious amounts of smoke and soot — hardly what you’d want to be adding to the already-dirty air of a teeming metropolis. And they were plenty noisy, too.

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