Just 44% of marketers surveyed believe their organizations were in compliance with the CAN-SPAM act, a law that requires marketers to request permission to send email messages, disclose the messages' source and offer an opt-out function.

FORBES: What Privacy Policy?

If you're looking for more technical details you'll find a link to the recently published paper titled, Dexterous manipulation of microparticles using Bessel-function acoustic pressure fields at the source.

ENGADGET

More than just supplying a battery-free source of light, though, the lantern can function as a charger, thanks to a USB port built into the casing.

ENGADGET: Green House's lantern runs on salt and water, powers your gadgets via USB