4 ms·

I think the chances of a quarter’s reflection aligning to your eye while the laser is on and pointing at it are pretty damn slim. If that’s still too high, you

by feupan 5y ago

I think the chances of a quarter’s reflection aligning to your eye while the laser is on and pointing at it are pretty damn slim. If that’s still too high, you better eliminate all corners in your kitchen because someone is going to lose an eye. And don’t get me started on forks.

bmitc 5y ago
Lasers are assigned a classification and regulated. You can't just get a lower classification just because. You can severely damage your eye (and more) with a laser, which may not even be visible. If corners and forks were invisible, traveled at the speed of light, propagated over large distances, were regulated, and could affect aircraft, then maybe your analogies would work.
true_religion 5y ago
The laser is designed to shoot small things in the air. If you flip a coin, and the system has a bug that determines the coin is a bug then it'll shoot. Since you're surely planning on caching the coin, you'll look directly at it in flight. Now... you're blind.
- feupan 5y ago
  That’s not how reflections work. Also there’s no bug as big as a coin that such a system could/should kill, so it’s pretty easy to not misdetect that. Again, corners have a higher probability of ending up in your eye than even just someone flipping a coin in 2022.
  - 14 5y ago
    The comment said your system has a bug as in it malfunctions and decides to shoot the coin anyways, and his other point was you will be looking at the coin wide eyed so perfect chance for a reflected laser to hit you in the eye if by chance the correct angle happens to line up and send it back to your eye. Also, I've seen too much unbelievable stuff actually happen so nothing is unbelievable in 2022. Yes we are talking highly unprobeable but with 7 billion people on earth we have to account for the unprobeable to happen.
    - CamperBob2 5y ago
      And how many of those 7 billion people will die of mosquito-borne diseases...? It's time to wipe out them out. We don't need mosquitoes, and neither does Mother Nature. Use gene tech to do the job, not Rube Goldberg hacks with lasers.
      - 14 5y ago
        Oh I am all for laser defense, I was merely pointing out that op is correct in that a system like this will likely go wrong some how. But I honestly don't think they would use them in household setting but rather use them on the outskirts or around ponds and use it for other pests in fields away from human eyes.
      - tabulatouch 5y ago
        Ok.. So bats die of hunger, we don't need them either, and all the way up to humans (AI said...)
        CamperBob2 5y ago
        Bats don't need mosquitoes, either. https://www.gardenmyths.com/myth-bats-eat-mosquitoes/ https://www.gardenmyths.com/myth-bats-eat-mosquitoes/
    - feupan 5y ago
      Right, because nothing else we already use has any chance of causing permanent damage. Nothing at all. Leave your bubble, I’m talking about relative probability, I’m not saying that it’s “impossible.” We accept far greater risks in our daily life than this.
      - 14 5y ago
        I know it is new years but you sound like an angry drunk. I know there are lots of risks in life I have taken many of them. I used to work at a Bungy jump and jumped hundreds of times. I ride a motorcycle at high speeds. I was simply commenting to the fact that your original comment did not respond correctly to the ops comment. He said a bug in the system as in a computer error bug and you went off and said there is not bug that big that would be mistaken, he wasn't talking about an insect but a computer error. Then you said that is not how reflections work, and again not true it could reflect into your eye not simply because he was looking at it but it would also take a certain angle but op was making a general statement about possible dangers. You are very defensive about this just chill out and accept that we are just discussing some of the possible dangers of such a system. We are, after all, talking about lasers and it would be totally irresponsible if such a system was built and all the modes of failure not explored. Not likely to happen does not mean you do not discuss it. Have a happy new years.
  - dumbfoundded 5y ago
    It's just an example. I've worked with industrial laser cutters (100+watt CO2) before and even with all of the protective equipment built into the machines, you still wear glasses. The idea that you could use something like this in an exposed way is crazy to anyone who's actually worked with them. Any mistake is instant and permanent. You can't make a consumer product out of this. Maybe like a large box that only mosquitos could enter but at that point, you have easier methods than a visual system moving a laser to mm tolerances.
    - tdrdt 5y ago
      I would like to have a cheap laser engraver/cutter but I am just afraid to buy one. Most kits don't have any protection at all except for some goggles. This might be fine for yourself but not for someone stepping into the room. Lasers are no joke. 'Don't look into the laser with your remaining eye' is also no joke.
      - dumbfoundded 5y ago
        They are absolutely no joke. For the small uncovered diode laser cutters, I'd recommend setting it up & running it remotely. If you use a laptop with a webcam & some remote desktop software, you can operate one safely it from a different room. There are many covered desktop ones that I think are a bit safer though. Ventilation is also a big concern.

by feupan 5y ago

bmitc 5y ago

Lasers are assigned a classification and regulated. You can't just get a lower classification just because. You can severely damage your eye (and more) with a laser, which may not even be visible. If corners and forks were invisible, traveled at the speed of light, propagated over large distances, were regulated, and could affect aircraft, then maybe your analogies would work.

true_religion 5y ago

The laser is designed to shoot small things in the air. If you flip a coin, and the system has a bug that determines the coin is a bug then it'll shoot. Since you're surely planning on caching the coin, you'll look directly at it in flight. Now... you're blind.

feupan 5y ago
That’s not how reflections work. Also there’s no bug as big as a coin that such a system could/should kill, so it’s pretty easy to not misdetect that. Again, corners have a higher probability of ending up in your eye than even just someone flipping a coin in 2022.
- 14 5y ago
  The comment said your system has a bug as in it malfunctions and decides to shoot the coin anyways, and his other point was you will be looking at the coin wide eyed so perfect chance for a reflected laser to hit you in the eye if by chance the correct angle happens to line up and send it back to your eye. Also, I've seen too much unbelievable stuff actually happen so nothing is unbelievable in 2022. Yes we are talking highly unprobeable but with 7 billion people on earth we have to account for the unprobeable to happen.
  - CamperBob2 5y ago
    And how many of those 7 billion people will die of mosquito-borne diseases...? It's time to wipe out them out. We don't need mosquitoes, and neither does Mother Nature. Use gene tech to do the job, not Rube Goldberg hacks with lasers.
    - 14 5y ago
      Oh I am all for laser defense, I was merely pointing out that op is correct in that a system like this will likely go wrong some how. But I honestly don't think they would use them in household setting but rather use them on the outskirts or around ponds and use it for other pests in fields away from human eyes.
    - tabulatouch 5y ago
      Ok.. So bats die of hunger, we don't need them either, and all the way up to humans (AI said...)
      - CamperBob2 5y ago
        Bats don't need mosquitoes, either. https://www.gardenmyths.com/myth-bats-eat-mosquitoes/ https://www.gardenmyths.com/myth-bats-eat-mosquitoes/
  - feupan 5y ago
    Right, because nothing else we already use has any chance of causing permanent damage. Nothing at all. Leave your bubble, I’m talking about relative probability, I’m not saying that it’s “impossible.” We accept far greater risks in our daily life than this.
    - 14 5y ago
      I know it is new years but you sound like an angry drunk. I know there are lots of risks in life I have taken many of them. I used to work at a Bungy jump and jumped hundreds of times. I ride a motorcycle at high speeds. I was simply commenting to the fact that your original comment did not respond correctly to the ops comment. He said a bug in the system as in a computer error bug and you went off and said there is not bug that big that would be mistaken, he wasn't talking about an insect but a computer error. Then you said that is not how reflections work, and again not true it could reflect into your eye not simply because he was looking at it but it would also take a certain angle but op was making a general statement about possible dangers. You are very defensive about this just chill out and accept that we are just discussing some of the possible dangers of such a system. We are, after all, talking about lasers and it would be totally irresponsible if such a system was built and all the modes of failure not explored. Not likely to happen does not mean you do not discuss it. Have a happy new years.
- dumbfoundded 5y ago
  It's just an example. I've worked with industrial laser cutters (100+watt CO2) before and even with all of the protective equipment built into the machines, you still wear glasses. The idea that you could use something like this in an exposed way is crazy to anyone who's actually worked with them. Any mistake is instant and permanent. You can't make a consumer product out of this. Maybe like a large box that only mosquitos could enter but at that point, you have easier methods than a visual system moving a laser to mm tolerances.
  - tdrdt 5y ago
    I would like to have a cheap laser engraver/cutter but I am just afraid to buy one. Most kits don't have any protection at all except for some goggles. This might be fine for yourself but not for someone stepping into the room. Lasers are no joke. 'Don't look into the laser with your remaining eye' is also no joke.
    - dumbfoundded 5y ago
      They are absolutely no joke. For the small uncovered diode laser cutters, I'd recommend setting it up & running it remotely. If you use a laptop with a webcam & some remote desktop software, you can operate one safely it from a different room. There are many covered desktop ones that I think are a bit safer though. Ventilation is also a big concern.