Each mirror acts as a beam-steering device, controlling whether a single picture element (pixel) in the image is light or dark.

ECONOMIST: Curtains for celluloid

Just walk up to another device and beam your infrared connector and -- bingo -- you're linked and talking.

FORBES: Digital rules: The High-Margin Danger Zone

For the first time you can now grab live collision events from the underground detectors in Geneva, and beam them direct to your own device.

FORBES: Want to Find the Higgs Boson? There's an App For That.

The beam itself will be produced by a device called a fibre laser.

ECONOMIST: Solar power from space

More modern versions of the tool add in a laser beam projector, which allows builders to level out the device and "draw" a long line of light across a wall, indicating an exactly level surface.

FORBES: No. 18 The Level

California-based HPV Technologies recently demonstrated a "magnetic acoustic device" or MAD that can broadcast a targeted beam of sound for a more than mile.

NPR: Focused Sound 'Laser' for Crowd Control

It invented a sophisticated device that emits sound waves in a lethally focused beam of energy but never proved that ultrasound provides long-term relief or is more effective than existing procedures.

FORBES: Not Hot Enough

Twonky Beam enables users to easily "beam" online and personal video content from a PC, Android or iOS device to the living room with the simple press of a button.

ENGADGET: Twonky Beam update for Android, iOS streams to Roku, Xbox 360

December 12, 2012--San Diego, CA-PacketVideo today announced that the company's Twonky Beam product, a free app that lets users discover and transfer online video content from a tablet or mobile device to a television with the touch of a button, now works with the Xbox 360 game console and Roku streaming players.

ENGADGET: Twonky Beam update for Android, iOS streams to Roku, Xbox 360