The Growing Laser Threat To Aircraft: the intentional shining of lasers on aircraft is on the rise.
Terrorists?
The FBI and Homeland Security Department have issued memos to law enforcement agencies stating that evidence indicates terrorists have considered using lasers as weapons. Federal officials have found no evidence any incidents to date are part of a terrorist plot. In a speech delivered in 2005, Secretary of Transportation Norman Mineta stated, “Let me address the security issue. There is no specific or credible intelligence that would indicate that these laser incidents are connected to terrorists. As far as we know, lasers are not the terrorists’ weapon of choice. Nor is there any evidence that these incidents are terrorists practicing for use of other weapons, as some have speculated. Unfortunately, most incidents have been linked to persons who have decided just for the thrill of it, to laser an aircraft.”
Since June of 2008, people have been arrested and charged in cases in Ohio, Texas, Florida, California and Massachusetts in which the lasers have been shined into the cockpit windows of aircraft in flight. The green laser pointers, sold online for less than $50, are many times brighter than red lasers and are used for presentations and to point at stars. When aimed at aircraft, however, they are bright enough to temporarily blind pilots. According to one police report, an incident occurred when a suspect pointed a laser at a State Patrol helicopter while it was flying over Minneapolis. The pilot was forced to land the helicopter when temporarily blinded. Investigation of the case has been referred to the FBI. Officers should be aware that these incidents are both federal and quite likely state criminal offenses. In New York State for example, a person could be charged at the state level for Reckless Endangerment in a laser incident.
The Danger of Lasers
Although it is unlikely a standard, commercially available laser could down an airliner there is still a significant threat. Shaoul Ezekiel , Massachusetts Institute of Technology professor emeritus of laser science said a pulse laser that emits a short burst of light is especially dangerous because there’s no chance for pilots to look away. “For pulse lasers, you haven’t got a chance,” Ezekiel said. “All it takes is one blast and it’s too late.” Putting louvers on the windscreen could reduce the probability that a laser would blind a pilot, he said. John Nance, a former pilot and aviation safety consultant, said military-grade lasers can actually punch through the back of the retina and kill the victim by causing a cerebral hemorrhage. Nance said he is concerned that some of the recent laser incidents could be terrorists testing laser equipment in preparation for an attack. “They’ll be looking to blow out the eyes of a pilot,” he said.
A giant harp, with laser beams for strings, will take pride of place at Terreiro do Paço, Lisbon, from November 8th to January 11th, as part of the ‘Luzboa’ arts festival.
Giant laser harp to enchant Lisbon.
DuPont business Pioneer Hi-Bred introduced Laser-Assisted Seed Selection to farmers attending the Farm Progress Show in Boone, Iowa, as the newest tool in its Accelerated Yield Technology (AYT) toolbox. The technology promises to increase the size and scope of the Pioneer breeding program five fold in the next three years.
Laser-Assisted Seed Selection uses a 120-watt carbon dioxide laser to score a small slice from a seed to capture its genetic information while maintaining the seed’s viability for planting. Molecular breeding techniques are used to identify desirable genetic combinations within each individual scored seed slice. Seeds identified to have superior genetics are selected for planting and advancement through the Pioneer research program.
DuPont Unveils Advanced Laser Technology in Accelerating Higher Yield Development.
Thursday Aug 28, 2008 13:21:23 EDT
The laser-guided Joint Direct Attack Munition made its combat debut in Iraq earlier this month, the Air Force announced Wednesday.
The 500-pound bomb, also known as the GBU-54, joined the war when an F-16 Fighting Falcon from the 77th Expeditionary Fighter Squadron, Joint Base Balad, used it to strike a moving enemy vehicle in Diyala province. The pilot was working with a joint terminal attack controller on the ground.
Laser-guided bomb makes first strike in Iraq - Air Force News, news from Iraq - Air Force Times.

Graffiti Research Lab’s [James Powderly] along with 9 other Tibet supporters were deported from China during the Olympic’s closing ceremonies. Detained on the 19th, the activists were to serve a 10 day sentence, but the Chinese government buckled under international pressure and deported them early. This brings the total number of deported activists to 53 since the start of the games.
Graffiti Research Lab is well known for its laser tagging research.
via: hackaday
Using lasers to spot troubled teethbeforecavities form, researchers hope to turn the dentist’s drill into a relic of the 20th century.
The technology, called “Raman spectroscopy” (RS), is not brand new. In fact, scientists in other fields have long been using it to distinguish between various chemicals, based on their unique molecular fingerprints.
But this is the first time RS has been used to identify teeth in the very earliest stages of decay, the British research team said.
“The technique we are working with can tell the difference between [healthy] enamel and decaying enamel, and so in the future, if this technology is further developed, a dentist could identify early decay using it,” explained study co-author Frances Downey, a graduate student with the Biomaterials, Biomimetics & Biophotonics Research Group operating out of the Dental Institute of King’s College London.
Laser Technology Spots Cavities Before They Start - washingtonpost.com.
Rochester police have a new tool to solve crime. The city is testing a new 3D laser scanner. The scanner made by Leica Geosystems is on loan from the A & E Television Network. It is part of the Rochester Police Departments agreement to participate in the reality drama “Crime 360″.
Rochester is one of only six departments in the entire country to use the scanner. Basically, it allows police to take a 3D picture of a scene. “When you have a live scan and you can recreate the scene the way it was right after it happened, the chances of solving the crime increase,” said Sgt. Mike Coon, Rochester Police Department. More at News10NBC.com