Using equipment costing about $80, researchers from Inverse Path were able to point a laser on the reflective surface of a laptop between 50 feet and 100 feet away and determine what letters were typed.
Chief Security Engineer Andrea Barisani and hardware hacker Daniele Bianco used a handmade laser microphone device and a photo diode to measure the vibrations, software for analyzing the spectrograms of frequencies from different keystrokes, as well as technology to apply the data to a dictionary to try to guess the words. They used a technique called dynamic time warping that’s typically used for speech recognition applications, to measure the similarity of signals.
Line-of-sight on the laptop is needed, but it works through a glass window, they said. Using an infrared laser would prevent a victim from knowing they were being spied on.
This is a simple project of a sundial wherein the pinion is replaced by a line LASER I took from a LASER level. The LASER is mounted on a RC servo which in turn is driven by a micro controller. The micro controller keeps the time and turns the RC servo accordingly.
Some people are seriously considering what if the eurozone broke up. If some countries are departing eurozone abruptly, they don’t have time to produce new currency. It would need to find temporary ways to separate its share of the euros from the rest. One people suggested laser engraving.
… it to laser-engrave distinguishing marks onto the portion of the euros, which would have been allocated to the country departing the eurozone. This can be done relatively quickly and would make the currencies irreversibly different, said Mathes, adding “but I suspect that the European Central Bank will not look kindly on a state burning holes in its currency.
That would be good for laser companies in the crisis.
A quarter-century ago, American rocket scientists proposed the “Star Wars” defense system to knock Soviet missiles from the skies with laser beams. Some of the same scientists are now aiming their lasers at another airborne threat: the mosquito.
In a lab in this Seattle suburb, researchers in long white coats recently stood watching a small glass box of bugs. Every few seconds, a contraption 100 feet away shot a beam that hit the buzzing mosquitoes, one by one, with a spot of red light.
When U.S. troops train, they often use a kind of Laser Tag system, to record simulated kills from rifles and artillery. But these days, American forces face less conventional threats, like suicide bombers. Which is why the Navy has funded a patent, for a simulated suicide bomber vest.
The Iowa Department of Transportation is using a mix of new and old technology to count traffic in a busy area along Interstate 80-35 in Des Moines. D.O.T. spokesperson Karen Carroll says the high-tech laser system counts the vehicles.
Carroll says the system puts two lasers across the road and counts traffic as the vehicles cross the lasers. She says they decided on this system because it would be costly to have to shut down and tear up the road to install the traditional loops under the roadway that measure traffic. Caroll says its’ called the “AxleLight” laser system and is able to tell the type of vehicle by the number of wheels and the distance between each wheel.
AN ambulance rescue helicopter has been attacked by laser pointers while transporting a badly injured man to hospital in Sydney’s southwest.
The crew had to alter their route to approach Liverpool Hospital safely, after a laser beam was pointed at the helicopter last night, a NSW Ambulance spokesman said.
