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Eavesdrop on conversations up to a mile away and try out advanced systems that see through walls. In the world of surveillance, Big Brother is not only watching, he’s also listening, analyzing, recording, scanning, and tracking every aspect of our lives. And with advanced surveillance technology, there’s virtually no place to hide. Surveillance Tech examines some of the most important and potentially terrifying equipment the world has ever seen–or rather, not seen–in this thriving surveillance revolution. Check out parabolic microphones that pick up conversations a mile a way, cameras that learn what and who to photograph, RadarVision that “sees through walls”, and Uninhabited Aerial Vehicles (UAVs). And explore the mind-bending future of surveillance technology, while, of course, reviewing its surprising history.

All life forms, including us, are built upon atoms of carbon. But modern technology is also built on a foundation of carbon. Modern Marvels: Carbon explores how such a simple element burns hotter, cuts deeper, dies harder, insulates more thoroughly, and absorbs more fully than any other material. From diamonds to coal, carbon fiber race cars to graphite pencils, you’ll see why carbon is not just the stuff of life, but the key to modern technology. You’ll also learn why “activated carbon” is the material of choice for absorbing everything from toxic heavy metals in your drinking water to funky odors in your shoes. And you’ll see how NASA is using carbon aerogel, the lightest, most insulating substance in the world, to search for clues about-you guessed it-carbon-based life forms.