lasers

Someday, somebody will bring an actual laser weapon to combat operations where it'll count. Until then, watch for more puttering about with the occasional field test of this or that prototype.

The latest manifestation of the eternal desire by the defense establishment for directed-energy weapons comes from Lockheed Martin, which yesterday brought word of its Area Defense Anti-Munitions (ADAM) system. ADAM's business end is a 10-kilowatt fiber laser that since August has been taking target practice against "representative" airborne threats.

The tally, it must be said, seems rather slight. Lockheed said that in the tests ADAM … Read more

The promise of laser weapons is that they will dispatch enemy missiles and other threats at the speed of light. Progress on those weapons systems, however, sure has been a heck of a lot slower.

When last we heard from Boeing about the HEL TD (High Energy Laser Technology Demonstrator) program in June 2011, the defense contractor had just finished system integration of key components, including the installation of the beam control system and other hardware on the 8-wheeled, 500-horsepower Oshkosh HEMTT (Heavy Expanded Mobility Tactical Truck).

This week, Boeing said that it's now engaged in the next phase … Read more

Here in Albuquerque, we have a 5-feet-to-pass law. You need to give cyclists that much room when you go around them in a car. It's easy to visualize when you have marked bike lanes, but some drivers push the limits on unmarked streets, especially at night.

If bicyclists carried their own bike lanes with them, it might help alert motorists to give them proper room. That's where Xfire's clever Bike Lane Safety Light comes in. The light uses two 5mW red lasers to create bike lane markings and five red LEDs for increased visibility overall. … Read more

The tinkerers at North Street Labs retrofitted an NES zapper with a ridiculously powerful laser capable of catching vulnerable objects like matches on fire.

The laser is strong enough to max out a 2W laser meter. That's some serious strength. As North Street Labs points out, goggles are an absolute must at all times when handling the zapper. There is a physical turn key safety switch to keep it from accidentally going off.… Read more

Any objection to Monday's top tech headlines is overruled:

The Apple vs. Samsung trial is almost at a close. The jury is expected to begin deliberations Tuesday. The two tech giants spent three weeks battling over patents and accusations of copying.

OnLive is facing some rough days ahead. The cloud-based gaming service sold its assets to an investor Friday and laid off employees, but said it will rehire many back as the newly restructured company (which will still be called OnLive). The company says subscribers shouldn't see any problems or interruptions in service during this restructuring.

College students … Read more

The New York Port Authority had egg on its face recently when a stranded jet skier managed to breach JFK International Airport's security perimeter and walk across several runways.

Raytheon, maker of the $100 million Perimeter Intrusion Detection System, has some explaining to do.

But it's not all bad. Inspired by the breach (and Shark Week), Justin Huynh and friends at engineering firm Liquidware have concocted their own intruder alert system for far fewer bucks.

Essentially, it's a simple laser tripwire that sends alerts to Twitter when activated. So far, it works with toy sharks and not hapless jet skiers. … Read more

Have the super-scientific brain needed to develop laser technology for enhancing everything from radar scanning to X-ray machines? The Defense Advanced Research Projects Agency wants you, doc.

DARPA this week called on radiation experts and other brainiacs to propose methods of efficiently controlling the electromagnetic spectrum by using ultrafast, pulsed lasers operating at optical wavelengths. It's part of DARPA's program in ultrafast laser and engineering, or PULSE. … Read more

Buying a printer on a budget is tricky -- if you tighten your belt too much, you run the risk of falling victim to the classic bait-and-switch purchasing model and spending more on consumables (ink and paper) in the long term.

That said, the $100 mark is a great place to start shopping for a low-cost printer. At that price, you have the option of getting an all-in-one multifunction device that incorporates a scanner and a copier in addition to the printing functions, and some models like the Epson Stylus NX430 even give you convenient extras like a 2.5-inch LCD touch panel and wireless connectivity.

Both laser and inkjet printers are included in the list below. The general rule is that inkjet printers are better for graphics-heavy documents and photos, whereas laser printers (especially the monochrome models) are better for producing speedy text documents in a business environment.… Read more

Pew pew! From disc drives to sci-fi shooters, we live in a world full of laser beams. And a special laser made waves in the world of medical research this week. Developed by laser applications researchers from the University of Tennessee's Space Institute, it could one day find use as a weapon against cancer.

Known as a femtosecond laser, the high-speed light pulses at one-quadrillionth of a second; when fine-tuned, the powerful beam can be used by doctors to detect, map, and nullify cancerous tumors. … Read more