3 ms·

Technology used by spies is detecting pesky moths

18 points by sohkamyung 4y ago

neonate 4y ago
https://archive.ph/OU6Od https://archive.ph/OU6Od
boomboomsubban 4y ago
So if they had sticky traps that caught them, couldn't they have just added some sort of pressure sensitive timer to those? Using lasers seems needlessly high tech.
yellow_lead 4y ago
They should add a high powered laser that points in the same direction as the detection laser (or maybe you could use the same laser, and alternate the power). If a harmful insect can be detected quickly enough, they could fire the high powered laser to kill it
- ceejayoz 4y ago
  This has been "coming soon" for years (https://en.wikipedia.org/wiki/Mosquito_laser https://en.wikipedia.org/wiki/Mosquito_laser), but "whoops we lasered someone's eye" is a fairly hefty obstacle.
  - actionfromafar 4y ago
    Several regular lamps/light sources focused on the same 3D spot, possibly tracking it in real time, should also work. The body temperature of the insect only need to be slightly raised for it to die. It needn't be "zapped" in an instant.
    - ceejayoz 4y ago
      > The body temperature of the insect only need to be slightly raised for it to die. The same is true for human retinal cells.
      - actionfromafar 4y ago
        Presumably, the array of lamps would not be aimed at humans, and turn off if a human stepped in the way. Even then, it would only be a problem at the (common) focal point of all the lamps.
dontbenebby 4y ago
A few links on tempest attacks for anyone interested -- anyone can do them not just employees of intelligence agencies, and it's been that way for over ten years :-) https://en.wikipedia.org/wiki/Tempest_(codename) https://en.wikipedia.org/wiki/Tempest_(codename) "Sniffing Keystrokes With Lasers/Voltmeters: Side Channel Attacks Using Optical Sampling Of Mechanical Energy And Power Line Leakage https://www.youtube.com/watch?v=Amnv4ncqKtA https://www.youtube.com/watch?v=Amnv4ncqKtA https://defcon.org/images/defcon-17/dc-17-presentations/defcon-17-barisani-bianco-sniff_keystrokes.pdf https://defcon.org/images/defcon-17/dc-17-presentations/defc...

18 points by sohkamyung 4y ago

https://archive.ph/OU6Od https://archive.ph/OU6Od

So if they had sticky traps that caught them, couldn't they have just added some sort of pressure sensitive timer to those? Using lasers seems needlessly high tech.

yellow_lead 4y ago

They should add a high powered laser that points in the same direction as the detection laser (or maybe you could use the same laser, and alternate the power). If a harmful insect can be detected quickly enough, they could fire the high powered laser to kill it

ceejayoz 4y ago
This has been "coming soon" for years (https://en.wikipedia.org/wiki/Mosquito_laser https://en.wikipedia.org/wiki/Mosquito_laser), but "whoops we lasered someone's eye" is a fairly hefty obstacle.
- actionfromafar 4y ago
  Several regular lamps/light sources focused on the same 3D spot, possibly tracking it in real time, should also work. The body temperature of the insect only need to be slightly raised for it to die. It needn't be "zapped" in an instant.
  - ceejayoz 4y ago
    > The body temperature of the insect only need to be slightly raised for it to die. The same is true for human retinal cells.
    - actionfromafar 4y ago
      Presumably, the array of lamps would not be aimed at humans, and turn off if a human stepped in the way. Even then, it would only be a problem at the (common) focal point of all the lamps.

dontbenebby 4y ago

A few links on tempest attacks for anyone interested -- anyone can do them not just employees of intelligence agencies, and it's been that way for over ten years :-) https://en.wikipedia.org/wiki/Tempest_(codename) https://en.wikipedia.org/wiki/Tempest_(codename) "Sniffing Keystrokes With Lasers/Voltmeters: Side Channel Attacks Using Optical Sampling Of Mechanical Energy And Power Line Leakage https://www.youtube.com/watch?v=Amnv4ncqKtA https://www.youtube.com/watch?v=Amnv4ncqKtA https://defcon.org/images/defcon-17/dc-17-presentations/defcon-17-barisani-bianco-sniff_keystrokes.pdf https://defcon.org/images/defcon-17/dc-17-presentations/defc...