3 ms·
You can track a bullet though, this seems to be completely invisible to naked eye so you could put a house on fire (since it seems to be pretty hot) and nobody
by m45t3r 8y ago
You can track a bullet though, this seems to be completely invisible to naked eye so you could put a house on fire (since it seems to be pretty hot) and nobody would know.
- bitxbitxbitcoin 8y agoSerious question: assuming the structure is burned beyond recognition, would arson specialists be able to tell if a house were put on fire in this manner?
- anigbrowl 8y agoNo, though they might be able to tell you where the fire started.
- gotocake 8y agoLasers only travel in straight lines, and any moisture or dust will reveal its trajectory and draw a straight line to the shooter. Worse, you need to keep the laser on target for a while. With a .50 BMG sniper rifle you can be moving before the sound of the bullet reaches the target.
- maxander 8y agoNo, an invisible infrared beam reflecting off of dust or water vapor is still invisible infrared light.
- gotocake 8y agoFair enough, but those wavelengths are visible with night vision gear. Either you work in visible wavelengths and worry about dust, or you work in IR and draw bright lines for anyone with NVG.
- phonypc 8y agoIt would have to be night time or otherwise dark and there would have to be enough dust/whatever in the air and you'd have to be expecting a laser attack. And then you'd have two seconds to follow the 'shot' back to its origin.
- gotocake 8y agoIn order... It would not have to be night time, modern NVG is quite adaptable. It would also be trivial to deliver something using the same tech as primative NVGs or basic FLIR as a countermeasure. Dust isn’t required with IR, the whole beam will be very visible on NVG. Where are you getting “2 seconds” from as the time necessary to kill someone with this laser?
- skeoh 8y agoI believe "2 seconds" is in reference to the following sentence in the article: > It can fire more than 1,000 “shots”, each lasting no more than two seconds. The implication being not that you have two seconds to kill someone but that you have two seconds to follow the beam from its destination to its origin.
- phonypc 8y agoArticle states a 'shot' lasts no more than two seconds. Who said anything about killing? The use case seems to be incapacitation and starting fires. Why would particulate matter in the air not be required? There's plenty of video on youtube of IR laser pointer operation through night vision. It works the same as a visible laser. Given you have IR laser detecting equipment suitable for daytime use (I'm not convinced your could adapt existing night vision equipment to the task) that would still require you to be expecting a laser attack to deploy it. Come to think of it, it's not a given that the weapon even uses a wavelength visible to night vision devices. They don't cover all of infrared.